Freedom Munitions Big Grains .460 S&W 300 Grain RNFP Brass Pistol Ammo 20 Rounds. 460 S&W Magnum round is a powerful cartridge for the Smith & Wesson Model 460 revolver designed for long-range handgun hunting. The .460 S&W round is a lengthened more powerful version of the popular .454 Casull which is already a longer more powerful version of the .45 Colt hailing from 1872 making it an example of a ''super magnum.'' .460 S&W Magnum is designed solely for use in S&W Model 460 and cannot be safely fired from other revolvers. It truly puts the BIG in Freedoms Big Grains series where it joins its little brother the .454 Casull and other heavy hard-hitting ammunition. Specifications for Freedom Munitions Big Grains .460 S&W 300 Grain RNFP Brass Pistol Ammunition: Manufacturer: Freedom Munitions Caliber: .460 S&W Number of Rounds: 20 Bullet Type: Round Nose Flat Point (RNFP) Bullet Weight: 300 grain Cartridge Case Material: Brass Application: General Package Contents: Freedom Munitions Big Grains .460 S&W 300 Grain RNFP Brass Pistol Ammunition Freedom Munitions FMBG460RF300N20: Big Grains .460 S&W 300 Grain RNFP Brass Pistol Ammo 20 Rounds