Got a wild hair giving me the itch to take a deer with one of my cas guns, a 5.5 in stainless vaquero to be specific. So I started out with 18.0 gr of 2400 win and fed primers under a 255gr cast swc. The federal primers won out in that load (not that the winchesters were too far off, but the poi was about dead on with the federals). My question is if anyone might know what this particular concoction might be running in the way of speed in this setup. It shoots about a 1.5" group with the fixed sights that is absolutely spot on, so I'm not all that interested playing around with other loads, just want an Idea of how fast its going. It will undoubtedly make meat, just curious on the specifics.
Thanks in advance,
Nathan