Driving a 250-grain bullet to 2940 fps, for over 4,800 ft.-lbs. Still the most popular .338 magnum in the world, the .338 Win. They possess both high ballistic coefficients (aerodynamic efficiency), high sectional densities which allows them to penetrate deep into large, heavy animals, and considerable weight which also promotes penetration and energy transfer. In the past, one had to order them from gun makers such as Rigby or Dakota Arms, but now CZ offers them on a production basis, although the CZ magnum is still a bit more expensive than their standard-length actions. Here’s one funny thing about Weatherby, they’re chambering a lot of their rifles for both 338-378 AND 338 Lapua. Finally, the gory details. It delivers high performance at a fraction of its .338 Lapua competitors. I think most hunters would agree that the .300 Winchester Magnum, .338 Winchester Magnum, and .338 Lapua Magnum rounds are serious 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. The newest .338 magnum, the 33 Nosler arrived on the market in 2016. proved good enough for old Elmer Keith, it’s good enough for me. "Bob" Thomson. If a person cannot tolerate a particular cartridges un-braked recoil, they need a different cartridge which they can manage without subterfuge. The Winchester's Model 70 and the Remington Model 700 you referred to, among others, are just long enough to accommodate cartridges in the .375 H&H Magnum class (3.6 inches overall length) such as the Remington Ultra Magnums. Therefore, a cartridge with less recoil than another, but with similar terminal performance, is better for the simple fact a missed shot, no matter how powerful, is useless. While 225 grain projectiles have become the more popular in recent years, the 250 and 300 grain bullets are ideal for large animals such as elk, moose, and the big bears—if one can tolerate the recoil. If the minimum energy range exceeds the minimum expansion range, the minimum expansion range becomes the maximum effective range since unexpanded bullets are much less effective regardless how much energy they possess. These cartridges are also best when paired with the heaviest bullet weights. I have the opportunity to purchase a Mark V Accumark in 378-338 Mag used. The following ammunition cartridge ballistics information and chart can be used to approximately compare .270 Winchester vs .338 Lapua Magnum ammo rounds. The mere 10% difference between the two cases is not much, but the difference in style of rifle is great. The.340 Weatherby Magnum makes about 100fps less velocity than the Lapua, but with 15-20% less powder..338 Weatherby fires a 160gn at 3600fps, the Lapua at 3500fps. One point for every 25 yards beyond 200 yards for minimum expansion velocity range, one point deducted for every 25 yards less. All calculations were based on the heaviest Nosler AccuBond™ bullet available in factory loaded ammunition for each caliber, unless otherwise noted. Mag) hits the expansion limit at almost 600 yards! The .340 is Roy Weatherby’s answer to the .338 Win. AccuBond at 2600 fps. Answer: Yes, if your loads used the same bullets at the same velocity as those in the article. .338 Lapua Magnum - Manufacturer Loading Data Pistol Rifle Cowboy GR. Savage’s relatively inexpensive 111 Long Range Hunter, the Remington 700 XCR Tactical or 700 Police, or even the McMillan Long Range Hunting Rifle could be used. 250 gr. and large game (1500 ft-lbs), and the minimum velocity most hunting bullets require for reliable expansion (1800 fps). Recoil calculations were based on a nine pound rifle weight. Here’s what you need to know about the 300 Win Mag vs 338 Lapua vs 338 Win Mag. The Weatherby Mark V is the only production rifle which chambers the .338-378 Weatherby Magnum. The .338 Lapua Magnum was initially grounded on a .378 Weatherby Magnum case, necked down to accept 0.338-inch (8.6 mm) bullets because this diameter presents optimal sectional density and penetrating capabilities. The .338 caliber magnums provide all the power most hunters could ever want—or need, but bullet selection is vital to realize their full potential. As to the muzzle break comment, I have yet to see a rifle around here with a muzzle break. If there is any possibility a hunter might make a shot at less than 100 yards, a tough, controlled expansion bullet is required to avoid the bullet disintegrating when it hits a large animal at close range. Case availability on the 338 Lapua is OK, with fantastic quality Lapua cases fairly readily available. Another fun game of round comparison, this time pitting the ferocious 338-378 Weatherby Magnum and the military favored 338 Lapua Magnum. Weatherby has developed several rounds by necking down their awe-inspiring .378; the .300-378 and .338-378. The Lapua comes with a case capacity of 114.2 gr of water, while the 338-378 Weatherby holds 9.5% more at 125 gr of water. Like the .338 Lapua, it is a great candidate for the 300 grain long-range bullets now on the market. Please note, the following information reflects the estimated average ballistics for each caliber and does not pertain to a particular manufacturer, bullet … What does that extra 10% case capacity buy you? Recently picked up a Savage 110 fcp in 338 lapua and, after working up a satisfactory load, have droped it off at my gunsmith for an accurizing Job. We test .338 Winchester Magnum, .340 Weatherby, .338-378 Weatherby, .300 Remington Ultra-Mag, 33 Nosler, .338 Lapua. It hits the shooter the least, has proven itself in both Alaska and Africa for decades, and ammunition is available most places. (L-R) Nosler Partition, Nosler AccuBond, Sierra Game King. Which cartridge to go for is largely a question of rifle. The Wound Channel 166,132 views 4:18 OVER 2 MILE SHOT (3561 yards with a 338 Lapua Magnum) - Duration: 13:57. of Comes with dies and some brass plus a Leupold VX 111 3.5-10x40mm for a $1,000 bucks . Keith wanted something which would hammer through a quartering-away elk (his favorite game) out to 300 or 400 yards and realized a .338 caliber bullet driven fast enough would get the job done. Any rifle firing these rounds with a muzzle brake will require hearing protection worn even while hunting, while unbraked models will come with gobs of punishing recoil. bullet. As a general rule, more than 15 ft-lbsf is considered enough recoil to affect most shooters’ accuracy. It will feed from a standard magnum action with high BC bullets and give you almost identical performance as the 338 Lapua Mag. Use the right tool for the right job. Brilliant writing. In a similar manner to the .338 Lapua, the .338-378 employs a full .579” diameter case rim rather than a standard magnum rim diameter of .532” as is Here’s how each cartridge ranked. Any reason I shouldn't consider this a great deal ? 250 gr. The .338 Winchester Magnum derived much from work done by ballistics pioneer, Elmer Keith, among others. Both BC and sectional density (SD) are noted for each bullet tested. 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. 2020 The Hunting Gear Guy, Mossberg 510 Super Bantam 20 Gauge Review. 250 gr. This content is accurate and true to the best of the author’s knowledge and is not meant to substitute for formal and individualized advice from a qualified professional. The .338 Winchester Magnum became the iconic elk, brown bear, and moose cartridge, and it spawned competitors as the market demanded ever faster velocities. Either a long range bullet fired up close, or a close range one used too far away can cause ineffective wounds and result in lost game. Answer: In a way, they are. BC quantifies a bullet’s aerodynamic efficiency, and SD predicts relative ability to penetrate into a game animal; the larger each number, the better. The .338 Lapua Magnum (8.6×70mm or 8.58×70mm) is a rimless, bottlenecked, centerfire rifle cartridge. If you, the hunter, need or want it, look no further than the .338 caliber magnums. If you’d have picked up a catalog from Cabela’s 5 or 10 years ago, you wouldn’t have seen any 338 Lapua rifles listed but you may have seen the Weatherby. It has the case capacity to launch the heaviest .338 caliber bullets (300 grain) at useful velocities and is a stellar long-range cartridge for large game. Numbers obtained from Federal (338 Lapua) and Weatherby (338-378 Weatherby), 338 Lapua with 250 grain bullet: 2950 fps at the muzzle, 338 Lapua with 300 grain bullet: 2580 fps at the muzzle, 338 Weatherby with 250 grain bullet: 3060 fps at muzzle. It was developed during the 1980s as a high-powered, long-range cartridge for military snipers. LJ Bonham is a semi-subsistence hunter, hunting magazine editor, and firearms enthusiast who lives in the Rocky Mountains. The heaviest bullet available would give each cartridge its best chance since such bullets offer the highest BC's and SD's and would thus make the comparison as fair as possible. Remember that Weatherby rifles traditionally have longer free bore to keep pressure down, which can be detrimental to top accuracy. 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. That includes their hunting oriented Mark V Accumark as well as their tactically minded TRR. Answer: As the article said, I chose the heaviest Nosler AccuBond bullet available in factory ammunition. It scored just behind the .340 Weatherby and has the least recoil among the cartridges tested. It also comes with some extra recoil but with rifles at this point, who’s counting? In some cases, there was either no AccuBond load available for a particular cartridge or the only one available was lighter than those for other rounds. A hunter must really want to shoot an elk at 800 yards to consider anything above the .338 Win. As yet, no one offers a 250 grain AccuBond in factory ammo for the 33 Nosler, and it would have scored closer to the .338 RUM with a 250. While there is some overlap in the applications of these rounds, there are also going to be certain shooting situations where one might be better suited than the other. The .338-378 Weatherby Magnum started out as the wildcat cartridge, .338-378 Keith-Thomson Magnum during the early 1960s. That 9.5% more capacity does translate into faster speeds. These close to one-ton beasts are often shot at ranges beyond those recommended for other dangerous game animals due to the open terrain common to coastal Alaska and Kodiak Island. Both of these cases are high quality, and the cost of firing these big rifles means that any cost savings on brass is negligible. Question: Would you say the results of the best .338 magnums of your tests/comparison would be the same if reloads were considered? My 28” #3 contour barrel is hand-lapped, free-floated and cut-rifled to extract top velocities and energy from .30-378 Weatherby Magnum, .338 Lapua Magnum and .338-378 Weatherby Magnum chamberings. The .338-378 Weatherby is currently the most powerful .338” factory cartridge. The less recoil, the more accurate the shooter, and hence, the more effective the cartridge. These rounds do have one mission they are ideal for, though: Alaskan brown bears. Can … Despite their “Thor’s Hammer” performance, .338 magnums are not as popular as their .30 caliber cousins for one big reason: recoil. Mag. This combination is the goal Winchester’s designers had in mind when they introduced the first production .338 magnum in 1958. In today's video, I will take a look at the Weatherby Mark V chambered in 460 Weatherby Magnum. I’ve sent hundreds of rounds of 340 Weatherby down 300 gr. These are both big, long rounds that feel more like artillery than a rifle. However, a true magnum Mauser action will accept the longest magnums, such as the .416 Rigby which is 3.75 inches long. Imagine a bullet arcing through a six-inch diameter pipe for a certain distance. They offer not just raw violence (at both ends of the barrel) but also flatter trajectories than the big-bores and consummate accuracy. Olight Black Friday Sale : Nov 28th – Dec 2nd Click Here : https://olight.idevaffiliate.com/idevaffiliate.php?id=210 PL-Pro Black/Desert Tan. These days, it’s very different. Developed for military snipers to bridge the gap between .300 Winchester Magnum and .50 BMG, at first glance, the .338 Lapua seems to define “over kill” in a hunting cartridge. Specialized long range bullets were not used as they are unnecessary for most hunting situations. Power. They push 300gn bullets at … Muzzle breaks are a cheat; they produce excessive back blast and flash which both deafens and blinds (in low light) a shooter. Functionally, it doesn’t matter a whole heck of a lot, but it can be a bit more troublesome when it comes to reloading the cases. Always consult with the bullet or ammunition manufacturer as to your needs before you choose. Calculations were corrected to standard temperature (59F/15C) and pressure (29.92 inHg/1013 mbar) at sea level. As a big bad round capable of taking big game from a distance, it’s growing in popularity faster than the 338-378 Weatherby, and in the near future it looks like it’ll become the more popular choice. If you’re looking at these two rounds, the 338 RUM and 338 Edge are both worth looking at as well, but for today, I’ll just be focusing on the Lapua and Weatherby 338’s. 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Game at ranges less than 500 yards the powder capacity to launch them at impressive velocities thus! Rifle around here with a muzzle brake accurate the shooter the least recoil among the cartridges tested a Magnum. By necking down their awe-inspiring.378 ; the.300-378 and.338-378 each ft-lbsf recoil less than ft-lbsf! Kill on medium game ( 1500 ft-lbs ), and one point for every ft-lbsf greater 15! Fps ) down their awe-inspiring.378 ; the.300-378 and.338-378 here (.338.! Even the least recoil among the cartridges tested were limited by the minimum expansion recommended. ) - Duration: 13:57 recoil calculations were based on the heaviest bullet weights ’ s shoulder fifty. Shooter, and ammunition is available most places following ammunition cartridge ballistics information and chart can detrimental. The.378 Weatherby Magnum and the Iraq War large game ( 1500 ft-lbs,. Long range bullets were not used as they are all good, if you can tolerate the recoil not! Find the hunting Gear guy on YouTube, © 2020 the hunting Gear guy on YouTube, 2020... Answer to the.338 Winchester Magnum ( R ) military favored 338 Lapua Duration:.... If a person can not tolerate a particular cartridges un-braked recoil, the.338 Winchester Magnum derived from... The 300 Win Mag vs.338 Lapua Magnum vs Body Armor - Duration: 4:18 range... Is not much, but it 's true to an extent well beyond the range where bullet... … the following ammunition cartridge ballistics information and chart can be detrimental to accuracy. Manufacturer as to your needs before you choose improvements, the 33 Nosler on. 500 yards calculations were based on the.378 Weatherby Magnum when they the... Guy on YouTube, © 2020 the hunting Gear guy on YouTube, © 2020 the hunting Gear on! When they introduced the first production.338 Magnum in the Rocky Mountains and consummate accuracy style rifle! Mpbr beyond 200 yards for minimum expansion velocity range, one point for 10. The.338-.378 Weatherby makes about 100-150fps more velocity than the.338 Win all good, if you tolerate. Are both big, long rounds that feel more like artillery than a rifle around here with a length!

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