The AccuBond™ is a good all-round hunting bullet with high ballistic coefficients (BC) and terminal performance similar to the time tested Nosler Partition™. 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. bullet. Question: Would you say the results of the best .338 magnums of your tests/comparison would be the same if reloads were considered? 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. 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. The .460 Weatherby Magnum is a belted, bottlenecked rifle cartridge, developed by Roy Weatherby in 1957. What does that extra 10% case capacity buy you? I know I'm going to get flak for this, but it's true to an extent. All of which you hit dead on. Another fun game of round comparison, this time pitting the ferocious 338-378 Weatherby Magnum and the military favored 338 Lapua Magnum. 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. The .338 Lapua Magnum was developed in the eighties specifically to provide Military snipers a round capable of delivering high powered impacts to targets at extended range. I think most hunters would agree that the .300 Winchester Magnum, .338 Winchester Magnum, and .338 Lapua Magnum rounds are serious Just don’t expect those slugs to hold up if they hit a bull elk’s shoulder at fifty yards. Although, even the least powerful here (.338 Win. *.338 Lapua features a Chrome Moly barrel GUARANTEED SUB-MOA ACCURACY All Mark V® rifles are guaranteed to shoot a 3-shot group of .99” or less at 100 yards (SUB-MOA) from a cold barrel when used with Weatherby® factory or premium ammunition within Two-Years of Verified Purchase Date to Original Purchaser. It was developed during the 1980s as a high-powered, long-range cartridge for military snipers. One point for each ft-lbsf recoil less than 15, and one point deducted for every ft-lbsf greater than 15. 338 Lapua Magnum vs Body Armor - Duration: 4:18. That 9.5% more capacity does translate into faster speeds. Thank you, sir! Great article. Answer: Recoil is a consideration with any cartridge. These are good bullet choices for shots inside 500 yards: Barnes TSX/TTSX, Swift Scirocco, Swift A-Frame, Nosler Partition, Nosler AccuBond, Nosler E-Tip, Woodleigh Weldcore, Hornady GMX, Hornady Interbond, and North Fork. The mere 10% difference between the two cases is not much, but the difference in style of rifle is great. It hits the shooter the least, has proven itself in both Alaska and Africa for decades, and ammunition is available most places. Here’s one funny thing about Weatherby, they’re chambering a lot of their rifles for both 338-378 AND 338 Lapua. 250 gr. Another fun game of round comparison, this time pitting the ferocious 338-378 Weatherby Magnum and the military favored 338 Lapua Magnum. Mag and enjoys a cult-like following. 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. Recoil calculations were based on a nine pound rifle weight. Military acceptance of the 338 Lapua as an extended range sniping round has increased civilian interest and now there are lots of tactical and hunting rifles becoming available in 338 Lapua. This put some cartridges at a disadvantage since only factory advertised velocities were used. Specialized long range bullets were not used as they are unnecessary for most hunting situations. 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. If a person cannot tolerate a particular cartridges un-braked recoil, they need a different cartridge which they can manage without subterfuge. The .300 Win Mag vs .338 Lapua Magnum is an interesting comparison, and we think provides some interesting points of discussion. They require a hunter to understand bullet construction and terminal performance in depth, especially with cartridges on the power scale’s upper end. Brilliant writing. Here’s how each cartridge ranked. Mag. Question: Do you think a Remington 700 is expensive? It also comes with some extra recoil but with rifles at this point, who’s counting? it's illegal to own a firearm chambered for any military used cartridge, so the .338 lapua magnum and the .408 cheytac are illegal, but thee 460 weatherby might be legal as I said, any round not being used by the a military is legal for the laws I've seen. Find the Hunting Gear guy on YouTube, © Question: I'm curious why you chose to use different weight bullets for each cartridge? Can … AccuBond at 2600 fps. Upon making further improvements, the finish manufacturers made the .338 Magnum rounds compatible with semi-automatic weapons. The main factor is to know the maximum and minimum anticipated impact velocities and the intended game, then select a bullet which is reliable under those conditions. Trajectory in this test is defined as Maximum Point Blank Range (MPBR): the distance over which a bullet rises three inches above sight line and then drops three inches below to hit within a six-inch kill box. 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. 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. Calculations were corrected to standard temperature (59F/15C) and pressure (29.92 inHg/1013 mbar) at sea level. The author analyzed six .338 caliber magnum cartridges (.338 Winchester Magnum, .340 Weatherby, .338-378 Weatherby, .338 Remington Ultra Mag., 33 Nosler, and .338 Lapua) for trajectory, effective range, and recoil with modern ballistic software available free online from shooterscalculator.com. MPBR for a 10 inch kill box illustrates the concept. 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. Claims 20 rounds down the tube. I’ve sent hundreds of rounds of 340 Weatherby down They have the powder capacity to launch them at impressive velocities and thus use those bullets’ high BC and SD advantages. One point for every 10 yards MPBR beyond 200 yards and one point deducted for every 10 yards less. I have the opportunity to purchase a Mark V Accumark in 378-338 Mag used. The 338-378 was not designed with accuracy in mind. Any reason I shouldn't consider this a great deal ? In the early days, the .338 lapua sniper cartridge was made to ground itself on a .378 Weatherby case, but was soon altered for more precision and penetration power. 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. Power. 250 gr. All the cartridges tested were limited by the minimum expansion velocity recommended for the standard Nosler AccuBond. The .338-378 Weatherby Magnum started out as the wildcat cartridge, .338-378 Keith-Thomson Magnum during the early 1960s. (If you’re looking for the best .338 Lapua … Use the right tool for the right job. This is the real … All calculations were based on the heaviest Nosler AccuBond™ bullet available in factory loaded ammunition for each caliber, unless otherwise noted. If you, the hunter, need or want it, look no further than the .338 caliber magnums. AccuBond (.720 BC/.375 SD) at 2650 fps. 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. Still the most popular .338 magnum in the world, the .338 Win. Imagine a bullet arcing through a six-inch diameter pipe for a certain distance. As a result of this, it became more widely available. 338 Norma. 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 Despite their “Thor’s Hammer” performance, .338 magnums are not as popular as their .30 caliber cousins for one big reason: recoil. Some cartridges were handicapped by the fact the major ammunition companies don’t offer the heaviest bullet weights, rather they offer the most popular or common. The .338-378 Weatherby is currently the most powerful .338” factory cartridge. Now let’s go. The loaded cartridge is … I'd stick with the Lapua. However, a true magnum Mauser action will accept the longest magnums, such as the .416 Rigby which is 3.75 inches long. "Bob" Thomson. The cartridge is based on the .378 Weatherby Magnum necked up to accept the .458-inch (11.6 mm) bullet. 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. Driving a 250-grain bullet to 2940 fps, for over 4,800 ft.-lbs. Olight Black Friday Sale : Nov 28th – Dec 2nd Click Here : https://olight.idevaffiliate.com/idevaffiliate.php?id=210 PL-Pro Black/Desert Tan. and large game (1500 ft-lbs), and the minimum velocity most hunting bullets require for reliable expansion (1800 fps). We test .338 Winchester Magnum, .340 Weatherby, .338-378 Weatherby, .300 Remington Ultra-Mag, 33 Nosler, .338 Lapua. 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. Mag, the “softest” here, slaps the shooter as hard as a .375 H&H Magnum, while the .338-378 and .338 Lapua are close to .416 Rigby territory. 2020 The Hunting Gear Guy, Mossberg 510 Super Bantam 20 Gauge Review. 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. All things equal (they seldom ever are), I’d go with the .338 Win. The.338-.378 Weatherby makes about 100-150fps more velocity than the Lapua, but with 10-15% more powder. Expanded Nosler AccuBond recovered from test media. They push 300gn bullets at … These cartridges are also best when paired with the heaviest bullet weights. 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… This combination is the goal Winchester’s designers had in mind when they introduced the first production .338 magnum in 1958. 225 gr. (action bedding, trued action, lap bolt lugs etc.) These rounds do have one mission they are ideal for, though: Alaskan brown bears. Comes with dies and some brass plus a Leupold VX 111 3.5-10x40mm for a $1,000 bucks . AccuBond (.575 BC/.313 SD) at 2850 fps. These genuine magnum Mausers are indeed expensive and not available off the shelf in most gun stores. What we need to know without fluff mucking up the targets. (L-R) Nosler Partition, Nosler AccuBond, Sierra Game King. 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. 250 gr. One point for every 25 yards beyond 200 yards (the average distance most game animals are shot) for maximum effective range on medium and large game, respectively, and one point deducted for every 25 yards less than 200 yards. 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. Remember that Weatherby rifles traditionally have longer free bore to keep pressure down, which can be detrimental to top accuracy. It too requires a magnum-length action. The 338-378 Keith-Thomson Magnum is a quarter of an inch shorter than the full length 338-378 Weatherby Magnum, this was because … Like the .338 Lapua, it is a great candidate for the 300 grain long-range bullets now on the market. Bullet selection for the .338 magnums presents some challenges. (L-R) .22 Long Rifle, .30-06 case, .338 RUM. It was used in the War in Afghanistan and the Iraq War. It comes close to .338 RUM performance but fits into standard (.30-06) length rifle actions. 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. For shots well beyond 500 yards, consider the Nosler AccuBond LR, Swift Scirocco, Berger, Hornady ELD-X, Hornady SST, or Sierra Game King. While waiting on its return, I've been pondering the 338 lapua improved chambering. Which cartridge to go for is largely a question of rifle. LJ Bonham is a semi-subsistence hunter, hunting magazine editor, and firearms enthusiast who lives in the Rocky Mountains. Be the same if reloads were considered the results of the.338-378 Weatherby Magnum 460 weatherby magnum vs 338 lapua up to the... 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