Carter, Ralf Custom Mauser, .450 Watts, 25" barrel, 10 lbs 6 oz. (with scope), 14" LOP to pad, custom quick detach mounts with a Leupold 1x-4x scope, rosewood fore end and grip cap, island rear sight with one standing leaf and two folding leaves, ramp front sight muzzle brake, dual recoil cross bolts, Winchester style three position safety, barrel band front swivel, with dies and ammo, caliber is based on necked-up .375 HH case with .458 diameter bullets. Developed in the 1950's as an improved .458 Win Mag. It will push a 500 grn. bullet at 2500 fps which is almost 300 fps faster than the .458 Lott. Factory ammo is available as well from Arizona Ammunition. I believe it will also shoot .458 Lott and .458 Win Mag ammo.