I think Doug Turnbull may have made me a believer about his .475 TURNBULL lever action rifle cartridge. It's a 50-110 shortened and necked down to .475 to take advantage of the plethora of .475 cartridges. Think 400 grains at anywhere from 1800 to 2100+ fps. Ouchies!Shoots great out of his 1886 lever guns...recoils isn't NEARLY what you might expect from a thumper like this. Brass and loaded ammo from Corbon. Heck of a gun all around!