As DougGuy mentioned (and you can measure it) the Ruger Bisley grip does have less "room" behind the triggerguard. Also Contender mentioned a Jack Huntington Bisley and how well it handled recoil and no knuckle busting. Having a JRH gripframe (SBH grip mod), he does some grinding on the frame behind the triggerguard to give it more room. My Super Blackhawk JRH frame mod had the front of the frame made straight like the Bisley and the back was left with the regular RBH angle and length added to the bottom. Really really nice work and dropdead beautiful grips. Not inexpensive! The revolver this work was done on was a SS 4 5/8" SBH and it was ridiculous with heavy loads before, but more controllable afterwards. It'll never be a nice revolver with heavy loads though.
The Bisley gripframe is truly a love it or not thing mainly because of the closeness behind the triggerguard IMO. There is another option now with a Wells gripframe. You'll have to pay for it, fit it, and then add the grips but he has so many options. We're getting into the custom gun effort and price here though.