I've never tried them on any other type of pistol, but on the center grip XP-100, they're very easy to use, even one handed. The gun itself has good balance though, and remains pretty stable. I think a muzzle heavy black powder pistol would probably make a stable enough platform for them to work well also though. The Trapper would probably be a good choice alright. It's muzzle heavy and stable, points very well, and has a nice trigger. If I ever have time for another project, I may give it a go also, just out of curiosity.