A KPS of 30 corresponds well with a Hornady HITS score over 901, which the experts at Hornady consider the minimum for use on large game. (These two are approximately equal in killing power at 200 yards.). Whether or not the slightly better efficiency of the .300 WSM is worth more than a hill of beans depends on how many rounds are loaded each year. 308 and 300 Win Mag are both great for taking big game in North America. All Rights Reserved. In theory, this leads to more uniform ignition and inherent accuracy. I did shoot the 140 soft point as much cheaper shell at $49 per box, tried 3 rounds of the 140 Berger, inch low & left…..so select which bullet suits you best & stay with it. I can really tell a difference when switching to the .300 Ultra Mag. It does, however, give a general idea of the comparative killing power of various hunting cartridges and loads. His Rifles, Inc. .300 Weatherby on a left-hand Model 70 action has consistently turned in groups like this for twenty-five years. Consider cartridges/loads scoring below KPS 11.0, at whatever you consider their maximum effective range to be, as small game and varmint cartridges. We then have a substantial jump between that cartridge and the .300 Remington Ultra Mag. ©2020 Outdoor Sportsman Group. It also tends to confirm some long held beliefs. Mag. There is no comparison between the two except to say that they are both .30 caliber. The .300 SAUM is why my Remington Model Seven feels like a .308 but hits like a .300 H&H. Additionally, it’s an extremely accurate cartridge that may even have a slight edge on the .30-06 in that regard. A look at the efficiency comparison chart on page 56 backs up that opinion with fact, but are the differences enough to really matter? The following ammunition cartridge ballistics information and chart can be used to approximately compare .300 Weatherby Magnum vs .300 Winchester Magnum ammo rounds. It’s got class, panache, and performance in spades, and is actually the oldest veteran in this group. 175 Gr. Obviously, even among vastly experienced game departments, there is plenty of disagreement about rifle cartridge killing power! Mag. LIST OF CARTRIDGES AND LOADS (bullet weight and MV - 100 yard KPS): .32-20 Winchester (100 grain at MV 1210 fps) - 2.6, .327 Federal Magnum (Rifle) (100 grain at MV 2000 fps) - 6.2, .223 Remington (64 grain at MV 3020 fps) - 7.2, .30 Carbine (110 grain at MV 1990 fps) - 7.4, .22-250 Remington (55 grain at MV 3680 fps) - 8.0, .220 Swift (55 grain at MV 3680 fps) - 8.0, .223 Remington (68 grain at MV 2960 fps) - 8.4, .223 Remington (75 grain at MV 2790 fps) - 9.2, .357 Magnum (Rifle) (180 grain at MV 1550 fps) - 9.5, .22-250 Remington (64 grain at MV 3500 fps) - 9.7, .223 WSSM (64 grain at MV 3600 fps) - 10.1, .220 Swift (64 grain at MV 3600 fps) - 10.1, .44-40 Winchester (200 grain at MV 1190 fps) - 10.1, .44-40 Winchester (200 grain at MV 1310 fps) - 11.0, .25-35 Winchester (117 grain at MV 2230 fps) - 11.9, .357 Magnum (Rifle) (158 grain at MV 1830 fps) - 12.7, .30-30 Winchester (Light) (125 grain at MV 2175 fps) - 12.9, .25-35 Winchester (110 grain at MV 2425 fps) - 14.4, .300 Blackout (125 grain at MV 2175 fps) - 14.5, .300 Blackout (135 grain at MV 2085 fps) - 14.9, .250 Savage (100 grain at MV 2820 fps) - 15.1, 7.62x39 Soviet (123 grain at MV 2365 fps) - 15.7, .257 Roberts +P (117 grain at MV 2650 fps) - 17.9, 6.8mm Rem. Then came a new breed of magnum cartridges without a belt, and suddenly that little band of brass just forward of the extraction groove of a case had more critics than Michael Moore at a soap-makers convention. I have been using rifles chambered for belted cartridges since the 1960s, and not once have I discovered anything to complain about. The following ammunition cartridge ballistics information and chart can be used to approximately compare .30-06 Springfield vs .300 Weatherby Magnum ammo rounds. The .300 WSM is why my Browning A-Bolt Mountain Ti weighs the same as a rifle in .308 Winchester but equals the .300 Win. Looking at it another way, when the three cartridges are loaded to maximum velocities with 180-grain bullets, the .300 WSM burns an average of 3 grains less powder than the .300 H&H and 5 grains less than the .300 Win. Jeff-I did a lot of testing and load development with .300 Weatherby. Those guys switched from the long and slim .222 Remington to the short and fat 6mm PPC not necessarily because it was more accurate, but because they wanted to move up to 6mm, and the PPC proved to be the best cartridge of that caliber available. Regardless of whether the .300 magnum you choose is old, new, short, long, fat, skinny, belted, or beltless, you are in good company. When it was first developed the .300 Weatherby Magnum produced nearly unheard of velocities. In most sub-Saharan African countries where dangerous game is still hunted, the 9.3x62mm/286 grain load (100 yard KPS 88.2) or the .375 H&H Magnum/270 grain load (100 yard KPS 106.2) are the recommended minimum for hunting lion, yet the big cats are about 1/2 to 1/3 the size of the great bears. Hornady .300 PRC (left) and .300 WBY.300 Weatherby Magnum vs. Hornady .300 PRC. I worked up a load that is pushing a 150 grain bullet at 3620 fps. Match. It was for this reason that I purchased the Weatherby Mark V 6.5-300. Like most of his other magnum cartridges, this is based on a blown-out .300 H&H Magnum case, using the signature Weatherby double-radius shoulder. Most orders ship within 24 hours (excludes firearms). 175 Gr. ISS Prop House gives us the rundown on the guns used in Enemy at the Gate. Introduced in 1944, this is the all-around cartridge for the big game hunter. Choose the lowest price from our multiple warehouses. While the belt was unnecessary on most of those cartridges, it spelled high performance to many hunters, and for that reason it sold lots of rifles and ammunition through the years. I am sorta surprised that quite a few people think the 257 may be a better choice. I am not alone with this opinion. When it comes to hunting larger game, a great many Class 3 animals have been taken by careful shots using cartridges/loads such as the .30-30/170 grain, 6.5x55/140 grain and 7x57/160 grain. For that, I believe one of the .338-caliber magnums is better than any .30, and a .35 might be a tad better still. They’re both readily available at sporting goods stores. The author has taken a lot of big game, including Alaska brown bear, with the Remington Model 700 in .300 Ultra Mag, and he likes both the rifle and the cartridge. Mag. Best Rimfire Cartridges — .22 Magnum vs .22 Long Rifle, .375 Ruger & .416 Ruger — Big Bore Cartridges, Black Hills Evolution of Rifle Cartridge: .308 Win. When hunting brown bear in really thick country, one of the most comforting things you can have on your team is a rifle with a very large hole down the center of its barrel and a magazine full of big, fat, heavy bullets. Magnum .300 Win. The Winchester .350 Legend is a no-nonsense whitetail thumper tailored for rifle hunters in... A half-century in the making, the new DGX Bonded is Hornady's best-ever dangerous-game bullet. Our perception of recoil is influenced by many things, including the shape of a riflestock and how well its pad soaks it up, but if the various .30-caliber magnums are fired in identical rifles, some are more comfortable to shoot than the others under certain circumstances. The .300 WSM has become one of my favorite cartridges--not because it is better than the others, but because it works in a short action. Some consider them just the ticket for everything that walks, crawls, slithers, flies, and has a leg on each corner. Using a short action sheds ounces from a rifle, and that's important when climbing a mountain steep enough to make you think each ounce you are carrying seems to weigh at least a pound. AccuBond at 2950 fps. |   My trusty calculator tells me that it takes a pound more powder to load 2,300 rounds of .300 H&H. When it comes to magnum cartridges of .30 caliber, there seems to be no middle ground among hunters. Just because it can be done does not mean it makes sense, despite what you might read in advertising copy. Since the .400/375 and .375 H&H cases have virtually no shoulder and the shoulder of the .300 H&H is long and mildly tapered, the British figured all needed a belt for positive headspacing, and they were right. It holds about 82 grains of water when accommodating a 180-grain bullet. To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine. As illustrated in the recoil comparison chart, there is very little difference in recoil between the .300 H&H Magnum, .300 WSM, and .300 Win. Recoil in a 308 is usually around 12 or 13 ft-lbs, while it’s 20+ ft-lbs in a 300 win mag. Joys of handloading are many, and one of the super-stubbies is their greater efficiency great taking. My Remington Model Seven feels like a.300 H & H Magnum,.30 Newton,.! 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