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As a point of reference, the factory 325 gr bullet of the .480 Ruger has the same approximate sectional density as a 265 gr projectile in the .44 Magnum, which has been proven adequate for very large game species with hard cast or all copper or copper alloy bullets of similar weight.
It can deliver a 250 grain (16 g) bullet with a muzzle velocity of over 1,900 feet per second (580 m/s), developing up to 2,000 ft-lb (2.7 kJ) of energy from a handgun. One Buffalo Bore loading drives a heavier, 300 grain, JFN bullet at 1,650 ft/s for 1,813 ft-lb of muzzle energy. [ 10 ]
Buffalo Bore offers +P rated cartridges with either 100 gr (6.5 g) JHP or 130 gr (8.4 g) Keith hard cast SWC bullets. [ 7 ] Since the .32 H&R Magnum headspaces on the rim and shares the rim dimensions and case and bullet diameters of the shorter .32 S&W and .32 S&W Long cartridges, these shorter cartridges may be safely fired in arms chambered ...
Buffalo Bore's loading for the .500 S&W cartridge offers much less energy at the muzzle, achieving only 2,579 ft⋅lbf (3,497 J) by driving a 440 grain .500 caliber bullet at 1,625 ft/s (495 m/s). [ 8 ] [ 9 ] However, the claimed muzzle energies of ammunition manufacturers may not be realized in real-world firearms, due to differences in ...
Harold Johnson necked out the .348 Winchester case to accept a .510" diameter bullet, [2] and Harold Fuller developed the barrel, marrying a .50 caliber barrel to an old Winchester Model 1886 rifle. Harold Johnson made the first 450 Alaskan in 1952, and continued to make them in the 1950s and 60s. The rifle was based on the Winchester Model 71 ...
Cast bullets require a longer bearing surface than jacketed bullets to maintain an equivalent alignment with the bore of the firearm; because the softer cast bullet can be more readily deformed. The most successful cast bullet designs have a round or flattened nose rather than a long, unsupported ogive.
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The .475 Linebaugh is intended primarily for hunting and defense against big game. The .475 is capable of propelling a 400-grain (26 g) bullet at a muzzle velocity of 1,400 feet per second (430 m/s), developing 1,741 foot-pounds (2,360 J) of muzzle energy from a 5.5" barrel.