Hello Everyone,
I bought a box of these 275 grain Barnes bullets made for the 460 S&W, after testing various loads, IMR 4227 at 36.5 grains has the best grouping, 3 holes touching at 50 yards. Overall length was 2.165, no problems feeding or ejecting. 1/24 twist Bushmaster 16 inch barrel. The cartridge casings all looked good, no sooty or unburned powder, and the primers looked the same as the Hornady factory loads, I'm very happy so far. This is my new Whitetail load for this season. Will let you all know how it goes.
oilcan72