.454 Do not discount your Omega before you try it 2 out of 3 including an Omega have shot the 460 really well, I only use that kind of bullet where I had no other choice as the rainbow trajectory is a pain; but with a 70 grain load of BH mine will hold 1.5 inches at 100 yds which I consider excellant for conicals. All of them will shoot the 350 grain FBP from Hornady better than the flat base conicals and flatter with a 90 gain load.