I've got a PRS and it's never worked for me shooting a contender (too futsy to get it adjusted correctly for the shot and then it doesn't swivel well as the post hits a leg). I haven't tried it with a revolver but expect the same. I do find the claw bag really gives me a level surface on top of one of a flat tripod and works great for a contender/encore (haven't tried it with a revolver, but I think a patch of leather to protect the bag and it would make it work). It's not quite as stable as a bench but works much better than I had expected. It is stable enough that the gun will rest there quite well without hands on it (provided the nut behind the trigger doesn't kick a leg out).