Underwood Ammo Gas Check Features The Underwood Ammo Gas Check load pairs a 360 grain hard cast lead bullet with a gas check design that protects the bullet s base from high-pressure gas cutting at 1900 feet per second preserving accuracy and bullet integrity downrange. This combination produces 2886 ft-lbs of muzzle energy giving the .460 S&W Magnum the penetration needed for medium to large game hunting applications. The bullet s sectional density of roughly 0.252 reflects its ability to drive deep through heavy muscle and bone a critical trait for a dedicated hunting round. This load is rated supersonic meaning it maintains full velocity and energy delivery at typical hunting engagement distances. Each box contains 20 loaded rounds housed in nickel-plated brass casings giving shooters reliable extraction and corrosion resistance in the field. Underwood Ammo manufactures this round specifically for hunters who need a proven big-bore revolver load capable of anchoring dangerous or heavy game in a single shot. The load is also rated safe for use in a suppressor adding versatility for shooters running a suppressed .460 S&W platform. For hunters and revolver enthusiasts who demand maximum knockdown power this Underwood Gas Check load is ready for the field. Underwood Ammo Gas Check Specifications Brand: Underwood Ammo Model: Gas Check Caliber: .460 SW Bullet Weight: 360 gr Bullet Type: Hard Cast Long Flat Nose Muzzle Velocity: 1900 fps Muzzle Energy: 2886 ft lbs Rounds Per Box: 20 Available At: GrabAGun