I love my two. They started out as .45, but I got my gun smith to trade them out onto a pair in .357. I use them for Cowboy Action Shooting. These have had just about everything that my gunsmith, Hogleg Smith can do to them. I also had him trade out the hammers for Ruger Super Blackhawk hammers.
If SASS OK's the proposal to approve Bisley hammers on any gun, I'll have them installed too.