HSM Subsonic Ammo, 500 S&W, 590 Grain, Hard Cast Flat Nose, 20 Rounds

590 Grain Hard Cast Flat Nose Bullet w/ Hi-Tek Supercoat1,022 Feet Per Second From an 16'' Barrel1,369 foot Pounds of Energy2.040 Cartridge Overall LengthRifling Twist of 1:32 or faster Recommended Suitable for all modern rifles and handguns