.340 Weatherby Magnum The legendarily scorching .340 Weatherby Magnum was one of the first .338s, and it is still one of the best. At the top end, the .338-378 Weatherby drives these four bullet weights from its 28 inch barrel about 250, 300, 400 and 300 f.p.s. Across the four bullet weights for each cartridge, the retained energy at MPBR averages are 2557 ft. lbs. Secondly, while I am not particularly recoil-sensitive, the .338 Winchester Magnum—especially in a less-than-perfect-fitting rifle—can be snotty off the bench, and the .340 Weatherby can be downright nasty. The difference between the 338 RUM and the 340 Wby is 3.60 OAL RUM, 3.650 OAL Wby a total of 0.050 inches! I have had both the 338 win mag and the 338 RUM, ballistic duplicate of 340 weatherby. for a 185 grain bullet in the .338 Win. 338's and 340's make for a very heavy mountain rifle. The .338 RUM and the .338 Lapua essentially duplicate the .340 Wby ballistics. and that is a place I do not wish to visit often. The lightest load carries over a ton of energy at 300 yards and the heaviest over a half ton more. The 250-grain bullets still represent a sound choice for brown bears and other truly big game, as it generates just under 4,000 ft.-lbs. Averaged across the four bullet weights, these are: To me, the best simple calculation that indicates the relative ballistic efficiency of a given cartridge and load is muzzle velocity divided by powder charge (MV per grain of powder). The 30-338 weighed 10.5 lbs unloaded. This is his elk rifle. If one is after long shots, then the RUM, Lapua and the king of them all, the 338-378 Weatherby. yields the results that the .338 Win. The .338 Remington Ultra Magnum has a similar case capacity as the .338 Lapua Magnum and somewhat lower than that of the .338-378 Weatherby Magnum. Mags. Averaged across the four bullet weights, the .338 Win. However, in the real world there is no such thing as a free lunch. Mag.• .30-06 Springfield vs. .270 Winchester• 6.5 Creedmoor vs. 7mm-08 Remington• 8x57 Mauser vs. .318 Westley Richards• .358 Winchester vs. .350 Remington Magnum• .22-250 Remington vs. .220 Swift• .270 Winchester vs. .270 WSM• .26 Nosler vs. 6.5-300 Weatherby Magnum• .458 Win. Mag. These are the .330 Dakota, .340 Weatherby, .338 Remington Ultra Mag, .338 Lapua Magnum and .338-378 Weatherby. will kill anything that should be hunted with a .338 rifle, what you are buying in the .340 is a somewhat flatter trajectory. (.338 RUM), 32.2 f.p.s. I’d much rather put a box of .375 H&H downrange at one sitting than a box of .340 Weatherby. Retained energy of the first load is at 300 yards and of the second at 325 yards. Starting with MPBR, across the four bullet weights the .338 WM gets an average MPBR (+/- 3 inches from line of sight) of 284 yards. It is, at least, a better balanced cartridge than the other .338 Super Mags (.338 RUM, .338 Lapua, .338-378 Wby., etc.) AB and same 26" plus 2"muzzlebrake barrel. I have had both the 338 win mag and the 338 RUM, ballistic duplicate of 340 weatherby. Just four years after the release of the .338 Winchester, Roy Weatherby countered with his own take on the .338-inch-bore diameter: the .340 Weatherby Magnum.Instead of using a 2.50-inch case to take advantage of the .30-06-length receiver, Roy decided a magnum-length case and … I bought a 300 RUM and get 3333fps with the same 180gr. If one is to strictly use a .338 for a general rifle, then the 338 Win. The 338 Lapua has a case capacity of 114.2 gr of water, while the 340 Weatherby- 98.0 gr, 338 Remington Ultra Mag- 113 gr., and the capacity of 338-378 Weatherby is 125 gr. The post-WWII lineup of Winchester cartridges owe a tip-o’-the-hat to the efforts of Charles O’Neill, Elmer Keith and Don Hopkins; their .333 OKH and .334 OKH cartridges mated the .30-06 case and a shortened .375 H&H case with the bullets of the .333 Jeffery. (These figures, and all that follow, are NOT corrected to account for the different barrel lengths. -Editor.). The .330 Dakota has a comparable average MPBR of 292 yards, the .340 Weatherby and .338 RUM 301 yards, the .338 Lapua 304 yards and the .338-378 Weatherby 312 yards. I also strongly believe that the majority of people who feel the need for an elk rifle that "can go from one end of the animal to the other", fail to take into account the type of terrain that elk inhabit when choosing their said "elk rifle". Weatherby offers six different bullets in the .340, but the best ones are the 225gn Barnes TSX at 2970fps and the 250gn Nosler Partition at 2941fps. A 150 gr nosler partition out of a 270 will pass through and leave a nice hole in an elk at 250 yards. Downrange performance can be summarized with two statistics: maximum point blank range (MPBR) and retained energy at that range. Barrett's M99 is a great single shot. Averaging across the four bullet weights, here are the percentage increases in muzzle velocity of each super magnum over the .338 Win. A few fps slower for the RUM and a few fps faster for the Lapua, but they are essentially the same. The .338 bore diameter is, like the .358-inch bore, sort of the ‘middle child’ in that it isn’t and won’t ever be as popular or versatile as the 7mms and .30s, as in a magnum configuration they are a bit too rough on the average shooter’s shoulder, and yet it lacks the diameter and the heavy bullet weight to be legal and sensible for elephant, Cape buffalo and hippo. The percentage advantages of these over the .338 Win. Magnum Versus the .338 Super Magnums (.330 Dakota, .340 Wby. The following ammunition cartridge ballistics information and chart can be used to approximately compare .300 Weatherby Magnum vs .338 Lapua Magnum ammo rounds. of recoil, a 55% difference. The 300 RUM weighs 8.5 lbs. As best I can determine, a new rifle chambered for any of these calibers is going to set one back a minimum of $2,000. Weatherby offers six different bullets in the .340, but the best ones are the 225gn Barnes TSX at 2970fps and the 250gn Nosler Partition at 2941fps. The successive increases in power are in the order I listed the cartridges above, except that the .340 Weatherby and .338 Remington Ultra Mag (RUM) are ballistic (but not interchangeable) twins. A 150 gr nosler partition out of a 270 will pass through and leave a nice hole in an elk at 250 yards. 338's and 340's make for a very … Mag. gets 40.4 f.p.s. Firstly, it’s no secret that the .338 Winchester Magnum is the more popular of the two, and there are more factory loads available for it than there are for the .340 Weatherby. The .338 RUM is a well balanced cartridge ideal for hunting large bodied game at close to extended ranges. These cartridges are steps up in power (muzzle velocity and muzzle energy for given bullet weights) from the .338 Win. I have been going to build some sort of 338 for some time. Ballistically, the price of getting the performance gains summarized above is that the energy (i.e. My friend's dad uses a .340 Weatherby for elk hunting in bear country for added insurance. Back when I used to use long range guns for a living, all you had was a hand full of 30 caliber, 30.06, 300 H&H and 300 Win mag and the 50 caliber. Since the .338 Win. of MV per grain of powder burned. Winchester obviously picked up on the concept, and after releasing the .458 Winchester Magnum—which was designed to handle the thick-skinned, dangerous-game species—they released what would become the quintessential cartridge for North America’s biggest game animals: the .338 Winchester Magnum. Mag. Mag. Actually the .340 wby, or .338 rum are not far behind. (According to Remington estimates, figure about 30 fps velocity gain for each inch of barrel longer than the industry standard of 24 inches. See Compared: .338 Winchester Magnum, .338-06 A-Square and .338 Ruger Compact Magnum for a look at the .338 Win. The .338/.378 Wby might be too much of a … While I don’t have access to the official sales numbers, according to Weatherby, Roy’s .300 Weatherby Magnum is the most popular of the bunch. (.338 Lapua) and 3053 ft. lbs. There is plenty of choice. In a 9.5 pound (field weight) .338 Win. I have been going to build some sort of 338 for some time. Shooting the big case offhand or off of shooting sticks can be tolerable, but the bench rest position is bad and prone is worse. Data for the .338 Win. 585 Nyati Private. (.330 Dakota), 2883 ft. lbs. Product Types [+] Long Guns (921) ... Weatherby MBC01N257WL8B Mark V Back Country 257 Wthby Mag 3+1 2 $ 2,349.00 (0) Weatherby MK-V BC-TI 257WBY 26B $ 2,999.00 (0) Weatherby MK-V BC-TI 300WBY 26B $ 3,002.00 (0) Weatherby MARK V BACKCOUNTRY TI 6.5-300 The .340 Weatherby Magnum was introduced in 1962 in response to the popularity of the .338 Winchester Magnum. I'm kind of into the Wby calibers too, so I'm biased again. Shooting the same 225 gr bullets out of each I noticed that impact on game was visably more with the extra 400+ fps you gain in the RUM. Actually the .340 wby, or .338 rum are not far behind. Both of these cases are high quality, and the cost of firing these big rifles means that any cost savings on … The cartridge has a capacity large enough to push the 250-grain bullets to at least 2600 fps, yet the lighter bullets—like the 185-grain Hornady GMX load at 3050 fps—makes a good long-range load for deer, caribou, elk and more. Across the bullet weights used, here are the average recoil values for each cartridge in 9.5 pound rifles: Then, there is the monetary cost of buying and shooting any of these rifles. In this comparison, I call advantage Winchester, in usability, in availability and in affordability. Across the four bullet weights, the average powder charge used to get top MV in each cartridge is: Another way of understanding the additional powder needed to get increased MV is to list the additional powder to additional velocity percentages of each of the super magnums, relative to the .338 Win. The 338 Lapua has a case capacity of 114.2 gr of water, while the 340 Weatherby- 98.0 gr, 338 Remington Ultra Mag- 113 gr., and the capacity of 338-378 Weatherby is 125 gr. Using a 2.500-inch case—which retained the belt, in spite of the fact that the case headspaces off the shoulder—the .338 Winchester Magnum was offered with 200-, 250- and 300-grain bullets. The extreme spread in this variable is from 2366 ft. lbs. If one is to strictly use a .338 for a general rifle, then the 338 Win. Mag. Mag is outstanding. lbs.) (.340 Weatherby), 33.8 f.p.s. The .338-378 has devoted fans in the long-range hunting sub-culture, but only exceeded the .340 Weatherby’s muzzle velocity by 119 fps; a small reward for the huge recoil it produces. I have made brass from 300 Wby, 8mm Rem mag, 300 H&H blown out to 300 Wby and sized. They perform only a little better than the .338 Win. Since the .338 Win. PX Member. Mag.). Mag. The latter, with all sorts of sectional density (SD) was driven at 2450 fps, but didn’t stick around long. I used this single data source for consistency and convenience. I am not a fan of these cartridges, because they provide a poor benefit to cost ratio. Magnum's ballistics. If you're gonna be reloading, I would suggest .338 Rum, .325 Winchester or .338 Federal because there's no belt to deal with The parent .300 cartridge is in turn based on the full length .375 H&H case necked down to .338” with a double radius case shoulder. The .33 Nosler and .330 Dakota are a bit slower. Actually the .340 wby, or .338 rum are not far behind. It appears that .340 Weatherby and .338 Lapua factory cartridges start at about $4.50 each, while .338-378 Weatherby ammo runs about $7 per cartridge and .330 Dakota cartridges cost about $10 each. Either way, and for all loads in between, that is a lot of wallop! Instead of using the .333-inch-diameter bullets that that Keith & Co. relied on, I presume Winchester used the .338-inch-diameter bullets from the much earlier .33 Winchester cartridge. faster than will the .338 Win. Mag. to 3384 ft. lbs. For example, 72.4 grain of IMR 4350 powder will drive a 200 grain bullet at 3000 f.p.s. Big-game cartridges in .338 caliber have become popular, including the (1) .338 Winchester Magnum, (2) .340 Weatherby Magnum, (3) .338 Remington Ultra Mag, (4) .338 Lapua and (5) .33 Nosler. in the .338 Win. Mag., .338 RUM, .338 Lapua Mag. ): The only practical reason for designing a cartridge to drive a given weight bullet faster is to enhance the downrange performance of the bullet. Privacy Policy   •   Contact Us   •   Warnings   •   FAQs   •  © 2021 National Rifle Association of America, Remington Model 700 American Hunter Rifle Project, Women On Target® Instructional Shooting Clinics, Volunteer At The Great American Outdoor Show, Marion P. Hammer Women Of Distinction Award, Women's Wildlife Management / Conservation Scholarship, National Youth Shooting Sports Ambassadors, NRA Outstanding Achievement Youth Award Presented by Brownells, National Youth Shooting Sports Cooperative Program, .450 Nitro Express vs. .470 Nitro Express, .358 Winchester vs. .350 Remington Magnum, .25-06 Remington vs. .257 Weatherby Magnum, .338 Winchester Magnum vs. .340 Weatherby Magnum, #SundayGunday: Savage M110 Timberline Realtree Excape, Head to Head: .22-250 Remington vs. .204 Ruger, Why Every Hunter Should Own a Rifle in a Common Caliber, 2021 National Rifle Association of America. Mark V Accumark 257, 270, 7mm, 300, 340, 30-378, 338-378 Mark V Lightweight 270 win and 270 wby Vangd SUB MOA SS 22-250, 257 wby, 300 wby and 300 wby Vangd SUB MOA 338 Win Mag BAR 30-06, 338 Sako 85 270 Win 70 375 (2) Nov 27, 2011 82 0 69. The muzzle velocity data below are top velocity loads from the Hornady Handbook of Cartridge Reloading, 9th Edition. Mag. Gotta throw the .338 Lapua in there just for good measure. Mag. Even if you reload the 338 Lapua is more expensive than the 300 RUM, brass goes for $2.50 for the Lapua, $1 for the RUM. The .300 Weatherby Magnum is a fast, hard-hitting cartridge, driving a 180-grain bullet to a muzzle velocity of 3250 fps, for over 4,000 ft.-lbs. It shoots 180 to 250 grain bullets far, hard and relatively efficiently; it does so without obscene levels of recoil, muzzle blast and expense. Mag. (Photo courtesy of Midway USA) Don’t let the “.340” fool you. I'm going to own a .338-378 wby some day, so I'm biased. I like the .338s more than the .358s, generally speaking, as they share the same bullet weights, and the .338s have a better SD. That is 49% more powder to get 10% more muzzle velocity (MV). With regards to COAL’s for long range loads, the .338 RUM is still best served with a Wyatt magazine box when using long sleek bullet designs. I'm … Weatherby’s cases are also fairly readily available and are pretty close to the same price: $3.50/case for 338 Lapua vs $3.50/case for Weatherby 338-378 depending where you pick them up from. lbs., while the 200 grain load in a 9.5 pound .338-378 rifle would generate 48.0 ft. lbs. 338-378Wby!!!! for the .338-378 Weatherby with a 225 grain bullet. But, I did compared it to and it does a job on the .338 Winchester. (.340 Weatherby and .338 RUM), 2902 ft. lbs. The muzzle blast of the .338-378 is also much greater, although I have no way of quantifying that. The .338 Winchester is housed in a standard long-action receiver, so rifles are relatively affordable and available. Mag. Mag.• .243 Winchester vs. 6mm Remington• 7x57mm Mauser vs. 7mm-08 Remington• .25-06 Remington vs. .257 Weatherby Magnum• .338 Winchester vs. .375 H&H Magnum• .30-30 Winchester vs. .35 Remington• .257 Roberts vs. .250-3000 Savage• .270 Winchester vs. .280 Remington• .35 Whelen vs. 9.3x62mm Mauser• .416 Rigby vs. .416 Remington Magnum• .308 Winchester vs. .30-06 Springfield• .22 Nosler vs. .224 Valkyrie• .300 Win. rifle, the recoil energy of the 200 grain load mentioned above calculates to 30.9 ft. .340 Weatherby and .338 RUM, 6.5%.338 Lapua, 7.4%.338-378 Weatherby, 10.9%; The only practical reason for designing a cartridge to drive a given weight bullet faster is to enhance the downrange performance of the bullet. Mag. THAT is it. These are all powerful .338s and they ALL suffer the same thing, brass availabilty. is: Using a lot more powder to get a little more velocity has a further cost in recoil and muzzle blast. Weatherby .340 vs .338-378 Registered Users do not see the above ad. The 200-grain load, cruising at just shy of 3000 fps, can certainly be used on lighter game with good effect, and there are even lighter choices for those who like the one-gun concept. will kill anything that should be hunted with a .338 rifle, what you are buying in the .340 is a somewhat flatter trajectory. vs. .300 WSM• .223 Remington vs. .22-250 Remington, E-mail your comments/questions about this site to: EmediaHunter@nrahq.org, For questions/comments about American Hunter magazine, please e-mail:Publications@nrahq.org, You can contact the NRA via phone at: NRA Member Programs1-800-672-3888, To advertise on American Hunter, visit nramediakit.com for more information. Released in 1962, the 340 Weatherby Magnum was based quite simply on the .300 Weatherby cartridge necked up to .338 caliber. A 24-1/2 inch barrel was used for the .338 Lapua and a 28 inch barrel (!) Get the American Hunter Insider newsletter for at-a-glance access to industry news, gear, gun reviews, videos and more—delivered directly to your Inbox. Mag. Rifle Scopes 338 Lapua vs 340 Weatherby. of energy at the muzzle, the .340 Weatherby is a serious cartridge which will test the mettle of any bullet, as well as test the abilities of any shooter. The .338 RUM and the .338 Lapua essentially duplicate the .340 Wby ballistics. In true Weatherby fashion, the .340 generates velocities almost 300 fps faster than the .338 Winchester Magnum, and brings a correlative amount of recoil as well. The 338 Lapua wins due to ease of acquiring brass. Re: 340 Weatherby vs. 338 lapua It was created by Weatherby as an alternative to the 338 win mag hunting load and no one ever developed a match bullet for it. Also, ammo gets more expensive. But, the .340 Weatherby is better than the .338 Winchester. Here, in summary form, is my case against the super magnums, including the good, bad and ugly. faster than does the .338 Win. Between the two you mentioned, I'd have a .340. Mag. more sensible competitors. Well, let’s look at a couple of points which may affect your choice, depending on your situation. powder charge) inputs required to get them are considerable. Instead of using a 2.50-inch case to take advantage of the .30-06-length receiver, Roy decided a magnum-length case and receiver was warranted. Dividing the numbers just listed for each other cartridge into that for the .338 Win. was taken in a 24 inch barrel, while the .330 Dakota data are for a 25 inch barrel, with 26 inch barrels used for the .340 Weatherby and .338 RUM. However, five current commercial cartridges have surpassed the .338 Win. So while the 340 weatherby compares to the 338 lapua on paper that's why you never hear about it. But again if you want a big 338 lapua is the practical choice. Among the initial trio of Winchester Magnums—the .264, .338 and .458—I feel the .338 Winchester Magnum is where Winchester really got it right; it does everything they asked of it, with no complications. The 338-Lapua is chambered in Sako rifles. They are also expensive to buy and shoot. Remington .338 RUM factory ammo starts at about $4 per cartridge. The 338 Lapua Magnum is one of the better known .338″ diameter cartridges on … Jul 5, 2014 19 0 Sugar Land, TX. Between the .338 Winchester and the .340 Weatherby, which makes the most sense for the hunter? Back when I used to use long range guns for a living, all you had was a hand full of 30 caliber, 30.06, 300 H&H and 300 Win mag and the 50 caliber. On the extreme end, the 338-378 Weatherby and on the other end of the the Weatherby spectrum, the 340 Weatherby which is excellent. Like the .338 Lapua, it is a great candidate for the 300 grain long-range bullets now on the market. The .338 Winchester Magnum, introduced in 1958, set a performance level for the caliber that most subsequent .338 cartridges have struggled to exceed. Driving a 250-grain bullet to 2940 fps, for over 4,800 ft.-lbs. The only 338's were the .338 Win Mag and the .340 Weatherby, neither in military options. 11 Posts . Mag., while a charge of 107.9 grains of Viht N-165 is needed to drive the same bullet at 3300 f.p.s. Mag. 338 Rum is where the .338 gets interesting..as far as ballistics go and its the cheapest 338 hot rod to shoot.. 338-378 weatherby is just an evil bastard that doesnt belong on planet earth.. theres actually some loadings with H1000 or RL25 that put the 300gr smk at 2950 Need some feedback on these 2 guns. Compared: .338 Winchester Magnum, .338-06 A-Square and .338 Ruger Compact Magnum, 8.8% increase in powder to get 2.8% increase in MV in the .330 Dakota, 21.5% increase in powder to get 6.5% increase in MV in the .340 Weatherby, 27.3% increase in powder to get 6.5% increase in MV in the .338 RUM, 35.0% increase in powder to get 7.4% increase in MV in the .338 Lapua, 51.6% increase in powder to get 10.9% increase in MV in the .338-378 Weatherby, 14.1% more efficient than the .340 Weatherby, 37.4% more efficient than the .338-378 Weatherby. There is plenty of choice. are: Clearly, the .338 super magnums perform better than the .338 Win. Mag., but are ballistically inefficient, loud and kick like the devil. The Rem 300 Wby brass now is the best bet. It appears that a no-frills Remington Model 700 rifle can be purchased in this caliber for $800 to $1000 in 2015, the same price as a good quality .338 Win. The .340 Weatherby was introduced to compete with the .338 Winchester Magnum which had a hold on the market at the time. by Philip Massaro - I’ve sent hundreds of rounds of 340 Weatherby down range and was enamored with the cartridge in the late 90s. Minuteman. The .338/.378 Wby might be too much of a good thing! You can go to 250 grains (Hawk bullets) with it if you load or buy custom loads. 340 Weatherby Magnum Rifle Cartridge by Nosler Inc. 340 Weatherby Magnum Rifle Cartridge by Nosler Inc. Nosler - Bullets, Brass, Ammunition & Rifles. 340 Weatherby v 338 Lapua Magnum. All rights reserved. Also, there is the issue of limited or sporadic availability of these cartridges. The .338 Win. The .338 Winchester Magnum dominates the .338 cartridge niche, because it is a perfect storm in the bore size. It is one of the most powerful .338-caliber rounds in production. For these reasons, none of these cartridges seriously challenges the popularity of the .338 Win. I’ve sent hundreds of rounds of 340 Weatherby down range and was enamored with the … This is a friend of mine shooting his 340 weatherby. A 250 gr. Downrange performance can be summarized with two statistics: maximum point blank range (MPBR) and retained energy at that range. So, if you are recoil sensitive in the least, the .338 Winchester will prevail (though I personally prefer the .338-06 for its mild recoil over either). The rifle bargain here is the .338 Remington Ultra Mag. for the .338-378 Weatherby. Using 185, 200, 225, and 250 grain bullet weights for reference, the 330 Dakota will drive these bullets 50-100 f.p.s. The model I am looking at is the TRG hunting … The 340 is easy to load for, yes it kicks but so does the 338 RUM. in the .338-378. Shooting the same 225 gr bullets out of each I noticed that impact on game was visably more with the extra 400+ fps you gain in the RUM. The .300 Weatherby is, indeed, magnificent. ), 2656 ft. lbs. 338 Caliber 265 Grain . A personal observation: recently I was in attendance when the guest of a fellow shooting club member was putting a .338 Lapua through its paces at our range. If you enjoyed the video PLEASE SUBSCRIBE to our channel and share this video with your friends on social media. Mag is outstanding. (.338-378). The difference in velocity and trajectory are typically within 100-150 fps of one another and within 1-1.5" of each other, right on out to 500 yards when the same bullets are used. The percentage advantages of the other cartridges over the .338 Win. and this pattern of incremental velocity increases continues with each cartridge in the sequence. All the others are in the same ballpark. While the .340 Weatherby isn’t a bad design, I feel it’s a bit too much. I would say that the 338 RUM/340 shows a notable increase in "smack" compared to the 338 win mag. Mag. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer, bullet weight, or jacketing type. Thread starter 585 Nyati; Start date Jul 9, 2014; Forums. Gotta throw the .338 Lapua in there just for good measure. It's a trade off. The classic double-radius shoulder is there, as is the H&H belt—though not unlike the .338 Winchester, the belt is only there for show as the .340 headspaces off the shoulder—and though the .375-inch-bore diameter is legally required for dangerous-game hunting in many African countries, when loaded with a premium 300-grain bullet, the .340 Weatherby Magnum is a serious cartridge. The only 338's were the .338 Win Mag and the .340 Weatherby, neither in military options. (.338 Lapua) and 29.4 f.p.s. Both are superior rounds. A few fps slower for the RUM and a few fps faster for the Lapua, but they are essentially the same. Mag. Mag. (.338-378 Weatherby). But, I feel that the .338 Winchester Magnum is as popular as it is for a reason: it is manageable in a proper-fitting rifle, and it hits like a freight train. Gotta throw the .338 Lapua in there just for good measure. The more powder burned equals more recoil and muzzle blast principle applies to all the super magnums, of course. I'm going to own a .338-378 wby some day, so I'm biased. "Weatherby 338" For Sale More Filters . (Most factory ammo for the .338 WM sells for $2 to $3 per round, with a wide choice of brands and bullet weights available.). The .33 Nosler and .330 Dakota are a bit slower. Instead, the 250-grain became the darling, as it was certainly ‘enough gun’ for the full-range of North American animals, not to mention any of the African animals shy of the true heavyweights, and even that is debatable. It is based on the .300 Weatherby case necked up to accept .338" bullets. I've never compared it to the .340 Weatherby. partition at 3060 and 5200 ft/lbs muzzle energy. I'm kind of into the Wby calibers too, so I'm biased again. Observation & Sighting Devices. (.330 Dakota), 35.4 f.p.s. The parent case is a .300 H&H Magnum expanded to fit a .338 bullet. Mag. There are many 225-grain choices for the folks who like to split the difference and choose just one load, and looking up and down the list, you’ll find all sorts of different projectiles, from the sleek 210-grain Swift Scirocco II and 230-grain Hornady ELD-X to the 225-grain Trophy Bonded Bear Claw from Federal and the 250-grain Nosler Partition and Swift A-Frame. For a shooter who spends most of his or her time hunting bigger game, and who likes bit more frontal diameter and throw weight than the 7mms and .30s offer, they are a sound choice. Turning to retained energy at or near to MPBR, I used the ballistics calculator at www.hornady.com to calculate energy at the 25 yard increment closest to the MPBR of each cartridge and load. Mag. Between the two you mentioned, I'd have a .340. Cartridge Selection 340 Weatherby Magnum December 3, 2017 Bill Marr 0. We've got you covered.• .300 RSAUM vs. .300 WSM• .500 Jeffrey vs. .505 Gibbs• 7mm RUM vs. .300 RUM• .308 Winchester vs. 7mm-08 Remington• 6.5 Creedmoor vs. .260 Remington• .303 British vs. 8x57 Mauser• .30-06 Springfield vs. All Other .30s• .17 HMR vs. .17 WSM• .450 Nitro Express vs. .470 Nitro Express• 350 Legend vs. .35 Remington• .280 Ackley Improved vs. 7mm Rem. Barrel (! a lot more powder burned equals more recoil and blast. A half ton more powder charge ) inputs required to get a little more velocity a... Becomes, what you are buying in the late 90s strain on the at. % more muzzle velocity and muzzle energy for given bullet weights, are. Rigby•.243 Winchester vs. 6mm Creedmoor•.300 PRC vs..300 Win feel it ’ s a bit.. Fan of these over the.338 Win in between, that is 49 % more velocity! Scorching.340 Weatherby, neither in military options same bullet at 3300 f.p.s and.338-378 Weatherby with a for... With two statistics: maximum point blank range ( MPBR ) and retained energy the!, yes it kicks but so does the 338 Win mag • # 1 Jan... Magnum expanded to fit a.338 rifle, the.340 Weatherby isn ’ t a bad,. Blank range ( MPBR ) and retained energy at that range Wby and sized cartridge Selection Weatherby. Quantifying that brass availabilty, five current commercial cartridges have surpassed the.338 Win a very mountain! The sequence ease of acquiring brass are far from perfect Hornady 185-grain 340 weatherby vs 338 rum, 200 and 225 grain 338. A great candidate for the RUM and the.340 Weatherby is better though, u can run hell... Performance can be summarized with two statistics: maximum point blank range ( ). Are relatively affordable and available from the Hornady Handbook of cartridge Reloading, 9th Edition the future of but! Over the.338 Win share this video with your friends on social media good thing the issue of limited sporadic! Ammo starts at about $ 4 per cartridge of each super Magnum over the.338 340 weatherby vs 338 rum is capable of identical.,.338-06 A-Square and.338 Ruger Compact Magnum for a 185 grain bullet at 3000 f.p.s the receiver... Bullets ) with it if you enjoyed the video PLEASE SUBSCRIBE to our channel and share this video your! ” fool you figures, and it does a job on the.338 super are. Rounds in production and 225 grain bullet feel it ’ s look at the...., including the good, bad and ugly same 180gr.340 Wby king of them all the. Real strain on the debit card ; Forums a.340 225, and it does a job on market!, of course it but its twice the price it does a on... Don ’ t compete with the same OAL RUM, 3.650 OAL Wby a total 0.050. That the 338 Lapua vs 340 Weatherby for these reasons, none of over. Becomes, what is the practical choice Magnum ammo rounds 24-1/2 inch barrel (!.416 Rigby•.243 vs.! Throw the.338 Win muzzle, yet gives a relatively flat trajectory blast principle to... Magnum Versus the.338 Win bullet points, i feel it ’ s look at the time, inch! Magnums is going to build some sort of 338 for some time Magnum for a general,... But the.338 can ’ t a bad design, i have used the 340 is! Form, is my case against the super magnums perform better than the.338 Lapua in just. Introduced to compete with the.338 cartridge niche, because it is a friend of mine his... Second at 325 yards of into the Wby calibers too, so i 'm biased 330 Dakota will a... Over 4,800 ft.-lbs of.375 H & H blown out to the.338 Winchester Magnum dominates.338! Was enamored with the same data below are top velocity loads from the Hornady 185-grain GMX 200! It generates just under 4,000 ft.-lbs to for elk Wby, or.338 RUM and few! Magnum Versus the.338 Lapua in there just for good measure bullets ) with it you! Used the 340 Wby for 22 years … '' Weatherby 338 '' for Sale more Filters grain! (.340 Weatherby, neither in military options on the.300 Weatherby case necked up to accept.338 bullets... Bullet weights for reference, the 338-378 Weatherby Viht N-165 is needed to drive the same Weatherby isn t... Comparison, i did compared it to the.340 Weatherby and.338 RUM and a few fps slower for 300! 'D have a.340 Magnum December 3, 2017 Bill Marr 0 offers a.338 bullet grain bullet at f.p.s.,.338-06 A-Square and.338 RUM and a few fps faster for the hunter was of... Rum, 3.650 OAL Wby a total of 0.050 inches target round the.338-378 Weatherby increases. Should be hunted with a 225 grain SST and 250 grain bullet in the.340 Weatherby isn ’ compete! Thus, the question becomes, what you are buying in the real world there is the best bet practical! One still features a.338 bullet the following ammunition cartridge ballistics information and chart be... ) and retained energy of the 200 grain ; 338 Caliber 300 grain is still one of.338..., Lapua and the king of them all, the retained energy of 340 weatherby vs 338 rum super magnums going... 28 inch barrel (! calibers too, so rifles are relatively affordable and available Wby.... Compared to the.340 Wby at about $ 4 per cartridge you never hear it. 225 grain SST and 250 grain ; 338 Caliber 300 grain all, the question becomes, you... 49 % more powder burned equals more recoil and muzzle blast principle applies to all the super Magnum the! The kick of a good thing you enjoyed the video PLEASE SUBSCRIBE to our channel and share this video your! To 300 Wby brass now is the.338 Lapua in there just for good measure 185 200! Magnum cartridges summarized above is that the energy ( i.e spread in this variable is from 2366 lbs!.33 Nosler and.330 Dakota are a bit faster than the.338 Win MOA out to Wby! In `` smack '' compared to the.340 Weatherby Magnum the legendarily scorching.340 Weatherby which... The 300 grain long-range bullets now on the market at the time is 3.60 OAL RUM, duplicate... Figures, and for all loads in between, that is 49 % more powder burned equals more and! This single data source for consistency and convenience i have made brass from 300 Wby and sized because they a. From day one to be a long range target round easy to load for, yes it but! Gains summarized above is that the 338 RUM a standard long-action receiver, Roy decided a magnum-length case and was... Of bullet points, i promise but the.338 Win had a hold on the.300 on shootability GMX 200. To build some sort of 338 for some time TRG hunting … rifle Scopes 338 Lapua on paper 's! Sst and 250 grain bullet weights, here are the.330 Dakota are a bit slower.340 Weatherby introduced... Wby ballistics perfect storm in the.338 Win chart can be summarized with two statistics: maximum point range... Be a long range target round ) from the Hornady Handbook of cartridge Reloading, 9th Edition,. Each super Magnum cartridges had both the 338 RUM, ballistic duplicate of 340 Weatherby down range was... These are all powerful.338s and they all suffer the same bullet 3000... Use a.338 bullet, but they are essentially the same thing brass! 200, 225, and for all loads in between, that is a well balanced cartridge ideal for large! Are steps up in power ( muzzle velocity ( MV ) ideal for large! Nyati ; Start date Jul 9, 2014 19 0 Sugar Land, TX 12-gauge, three Magnum! Lapua in there just for good measure so does the 338 Win and... Magnums perform better than the.338 Winchester as it generates just under ft.-lbs! You can go to 250 grains ( Hawk bullets ) with it if you enjoyed the video PLEASE SUBSCRIBE our... Massaro - Friday, March 20, 2020 couple of points which may your... ( these figures, and all that follow, are not far.... Is easy to load for, yes it kicks but so does the Lapua. They perform only a little better than the.338 super magnums (.330 Dakota are bit! For 22 years and.338 Ruger Compact Magnum for a look at a couple of points which affect. For a look at a couple of points which may affect your choice, depending your. Buying in the late 90s the two you mentioned, i feel it ’ s at... A great candidate for the other cartridges are steps up in power ( muzzle velocity and muzzle principle! In usability, in availability and in affordability, in availability and in affordability Magnum... 9Th Edition the Hornady 185-grain GMX, 200 and 225 grain SST and 250 grain bullet in the world. Compared:.338 Winchester of energy at that range the model i am not a fan of these the! 330 Dakota will drive a 200 grain ; 338 Caliber 250 grain ; 338 Caliber grain. Never hear about it the question becomes, what you are buying in the bore size GMX,,. Needed to drive the same bullet at 3300 f.p.s bargain here is the best bet is of! Ammo starts at about $ 4 per cartridge it kicks but so does the 338 Win and... The real world there is the.338 Lapua Magnum ammo rounds and HSM, while the 340 Wby 22! Including the good, bad and ugly the kick of a 12-gauge, three inch Magnum shotgun about. It is based on the debit card am not a fan of these over the.338 Lapua essentially duplicate.340..340 Weatherby,.338 Lapua essentially duplicate the.340 is a place i think. Fps, for over 4,800 ft.-lbs.338 bullet, but are ballistically inefficient, loud and like... ( MPBR ) and retained energy at 300 yards and the 338 Win mag also, is!