I know it's not a single-action, but that's where the .454 shooters are I'd imagine. I'm trying to find some good loads for my 12" Encore .454 Casull with H110, and I can't get anything to group! I'm shooting cast bullets from 250 gr. to 370 gr, and nothing is under 3" at 25 yds yet, and most groups are well over that. It's not the gun because it loves Unique and almost any weight bullet, but I wouldn't mind having a little more punch that Unique provides, although a 300 gr. bullet at 1400 fps is probably enough for deer, it groups about an inch at 100 yds, one big hole at 25 yds, so I know it's not the gun. If any of you have and tried and proven (safe) loads with H110 and the .454, please shoot me some info, if you don't want to post it, PM me or email me at encorefan@hotmail.com.
Thanks,
Selmer
PS Lloyd, they're your bullets, so if you have any suggestions, shoot them at me please.