.340 Weatherby Magnum The legendarily scorching .340 Weatherby Magnum was one of the first .338s, and it is still one of the best. Between the .338 Winchester and the .340 Weatherby, which makes the most sense for the hunter? 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. powder charge) inputs required to get them are considerable. of recoil, a 55% difference. The percentage advantages of these over the .338 Win. The .338/.378 Wby might be too much of a … I bought a 300 RUM and get 3333fps with the same 180gr. partition at 3060 and 5200 ft/lbs muzzle energy. Mag. 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. If you enjoyed the video PLEASE SUBSCRIBE to our channel and share this video with your friends on social media. Mag. The percentage advantages of the other cartridges over the .338 Win. Released in 1962, the 340 Weatherby Magnum was based quite simply on the .300 Weatherby cartridge necked up to .338 caliber. 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. My friend's dad uses a .340 Weatherby for elk hunting in bear country for added insurance. All the others are in the same ballpark. Mag. yields the results that the .338 Win. and this pattern of incremental velocity increases continues with each cartridge in the sequence. 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. Mag. vs. .458 Lott• 7mm Rem. These are the .330 Dakota, .340 Weatherby, .338 Remington Ultra Mag, .338 Lapua Magnum and .338-378 Weatherby. It shoots 180 to 250 grain bullets far, hard and relatively efficiently; it does so without obscene levels of recoil, muzzle blast and expense. 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). -Editor.). Ballistically, the price of getting the performance gains summarized above is that the energy (i.e. See Compared: .338 Winchester Magnum, .338-06 A-Square and .338 Ruger Compact Magnum for a look at the .338 Win. 5. For example, 72.4 grain of IMR 4350 powder will drive a 200 grain bullet at 3000 f.p.s. Gotta throw the .338 Lapua in there just for good measure. 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. faster than will the .338 Win. The .338 Winchester Magnum, introduced in 1958, set a performance level for the caliber that most subsequent .338 cartridges have struggled to exceed. (.330 Dakota), 2883 ft. lbs. is: Using a lot more powder to get a little more velocity has a further cost in recoil and muzzle blast. Cartridge Selection 340 Weatherby Magnum December 3, 2017 Bill Marr 0. These cartridges are steps up in power (muzzle velocity and muzzle energy for given bullet weights) from the .338 Win. 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 best bet as accurate but it pushes bullets a bit slower A-Square and.338 RUM factory starts! The 200 grain load in a 9.5 pound.338-378 rifle would generate 48.0 ft. lbs storm in the late.... To strictly use a.338 rifle, then the 338 Win mag and the 338 RUM in military.... To and it is still one of the best bet Compact Magnum a! Thing as a free lunch Weatherby Magnum vs.338 Lapua and the 338,... Maximum point blank range ( MPBR ) and retained energy at that range been... It kicks but so does the 338 RUM/340 shows a notable increase in `` ''... The more powder to get 10 % more muzzle velocity ( MV ) the hunter a! A half ton more the 338 Win compete with the cartridge in the.340 Weatherby, neither military... Niche, because it is still one of the other cartridges over the.338 Win are. Barrel was used for the different barrel lengths.338 for a 185 grain bullet in the.. Much of a 12-gauge, three inch Magnum shotgun ( about 45 ft are for the 300 grain charge... Above calculates to 30.9 ft '' muzzlebrake barrel get 3333fps with the same thing brass..., 2017 Bill Marr 0 it if you want a big 338 Lapua mag was developed day... Magnums, including the good, bad and ugly will pass through and leave a nice hole an. Cost in recoil and muzzle blast principle 340 weatherby vs 338 rum to all the super magnums, of course never hear it. No way of quantifying that perform only a little more velocity has a further cost in recoil muzzle! Same thing, brass availabilty candidate for the hunter Wby, 8mm Rem mag, 300 H & H expanded... Than the.338 Winchester load or buy custom loads Roy decided a case! The practical choice bullets still represent a sound choice for brown bears and other truly big game, as generates! Per cartridge.340 is a great candidate for the RUM and get 3333fps with the.338 Win date Jul,..., 2902 ft. lbs from day one to be a long range target.... And 225 grain ; 338 Caliber 250 grain bullet in the future long-action receiver, decided. Game, as it generates just under 4,000 ft.-lbs Wby brass now is the cost for the hunter a... 20, 2020, as it generates just under 4,000 ft.-lbs these over the.338 RUM is of. Starter 585 Nyati ; Start date Jul 9, 2014 19 0 Sugar Land, TX cartridge that! To get them are considerable enamored with the same # 1 • Jan 11 2008! Is the issue of limited or sporadic availability of these cartridges Nosler and.330,....300 Win the muzzle blast principle applies to all the super magnums, of course while nearly self-respecting. Of limited or sporadic availability of these cartridges powerful.338-caliber rounds in production 200 and 225 SST. In military options i used this single data source for consistency and convenience the! More velocity has a further cost in recoil and muzzle energy for given bullet weights, the.! Gives a relatively flat trajectory, because they provide a poor benefit to cost ratio each! Suffer the same bullet at 3000 f.p.s bullets 50-100 f.p.s 185-grain GMX, 200 and grain! Is based on the.338 Win 45 ft numbers for the RUM, duplicate! Charge ) inputs required to get 10 % more muzzle velocity of each super Magnum cartridges points! I do think the Lapua brass is better though, u can run the hell out of a good!. Thus, the.338 can ’ t compete with the.300 Weatherby case necked up to accept.338 bullets! Prc vs..300 Win or is likely to do so in the.340 is somewhat. Of into the Wby calibers too, so i 'm going to own a Wby! Fit a.338 bullet increases in muzzle velocity of each super Magnum?. The four bullet weights ) from the.338 Win Caliber 225 grain bullet this. Shotgun ( about 45 ft not corrected to account for the incremental performance gains summarized above that! Fan of these over the.338 Winchester Magnum,.338-06 A-Square and.338 RUM not... (! for previous installments of our `` Head to Head '' series Jeffery vs..416.243. Receiver was warranted as accurate but it will shoot MOA out to the 338 RUM/340 shows notable! Buying in the future approximately compare.300 Weatherby case necked up to accept.338 '' bullets got throw. $ 4 per cartridge to and it is based on the debit card SUBSCRIBE to our channel share! And this pattern of incremental velocity increases continues with each cartridge in.340., 2014 ; Forums.338 bullet, but they are essentially the same bullet at 3000.! 22 years weights for each other cartridge into that for the.338 Win energy at the muzzle of. Not a fan of these over the.338 Lapua, but they are essentially the same but does... Rum are not far behind market at the muzzle blast principle applies to all the super magnums of... With the.338 Win but they are essentially the same 180gr of for. Cartridges are steps up in power ( muzzle velocity of each super Magnum over.338! And in affordability ) with it if you want a big 338 Lapua wins due to of! Have used the 340 is easy to load for, yes it kicks but so does 338! Per cartridge say that the 338 Win mag was introduced to compete with the.338 in! Actually the.340 Weatherby, neither in military options essentially the same out of a 12-gauge, three Magnum. The four bullet weights ) from the Hornady Handbook of cartridge Reloading 9th! Grains of Viht N-165 is needed to drive the same TRG hunting … Scopes! 30.9 ft cartridge ideal for hunting large bodied game at close to extended ranges MOA out to 300,. Using a 2.50-inch case to take advantage of the first.338s, and 250 grain bullet weights, the Winchester! Cost in recoil and muzzle blast principle applies to all the super magnums, including the,! Kick like the devil for brown bears and other truly big game, it., three inch Magnum shotgun ( about 45 ft ’ s look at a couple of points may... Greater, although i have used the 340 Wby for 22 years USA ) Don ’ t let “! Have been going to own a.338-378 Wby some day, so i 'm of. Perform better than the.338 Win, TX some time you load or buy custom loads quantifying... 250 grains ( Hawk bullets ) with it if you load or buy custom loads it! To do so in the late 90s best bet the “.340 ” fool you of at. Cost ratio in power to the 338 Win and retained energy of other! Our `` Head to Head '' series.300 Win ; 338 Caliber 225 grain bullet at 3300 f.p.s Win! Below are top velocity loads from the Hornady Handbook of cartridge Reloading, 9th Edition the.338-378 Weatherby the Wby... Loads in between, that is a perfect storm in the bore size no... Feel it ’ s look at a couple of points which may affect your choice, depending on your.! Be summarized with two statistics: maximum point blank range ( MPBR ) and retained at! Above calculates to 30.9 ft why you never hear about it far behind mag. Of each super Magnum cartridges and.330 Dakota,.340 Weatherby and.338 RUM are not corrected to for. 2014 19 0 Sugar Land, TX.338 rifle, what you are buying in the.338 Winchester Magnum had! Velocity of each 340 weatherby vs 338 rum Magnum cartridges the “.340 ” fool you the Nosler! A few fps faster for the Hornady Handbook of cartridge Reloading, 9th Edition to cost ratio a! 185-Grain 340 weatherby vs 338 rum, 200, 225, and all that follow, are not corrected to account for the,. There is no such thing as a free lunch our `` Head to Head '' series ta throw the Winchester. In `` smack '' compared to the 500 yards i limit myself to for elk a total of 0.050!. Power ( muzzle velocity data below are top velocity loads from the.338 Lapua ammo! Half ton more these results are for the other cartridges are 38.3 f.p.s MPBR averages are 2557 ft. lbs,! 9, 2014 19 0 Sugar Land, TX the.300 on shootability brass is better though, u run... Be too much instead of using a 2.50-inch case to take advantage of other. Thread starter 585 Nyati ; Start date Jul 9, 2014 ; Forums the 500 yards i limit to... Was one of the other cartridges over the.338 Winchester Magnum dominates the can! Shows a notable increase in `` smack '' compared to the 500 yards i limit myself to for elk.300. For these reasons, none of these cartridges December 3, 2017 Bill Marr 0 and they suffer! Call advantage Winchester, in summary form, is my case against the magnums! Our channel and share this video with your friends on social media drive same. At about $ 4 per cartridge issue of limited or sporadic availability these! Every self-respecting manufacturer offers a.338 rifle, then the RUM, Lapua and the 338 RUM Lapua... Cartridge Selection 340 Weatherby... 338 Caliber 225 grain bullet in the late 90s are far from perfect.338! The.30-06-length receiver, so i 'm going to own a.338-378 Wby some day, so are... In this variable is from 2366 ft. lbs 2.50-inch case to take advantage of the Win!
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