Laslow,
The word "RECOIL" would never come to mind when I was thinking of shooting my Ruger Old Army using cap and balls. I say when using cap and balls because there are cartridge conversions for this gun. The Ruger Old Army is a blackpowder revolver as you most likely know. Blackpowder in such a revolver does not produce a "kick" like modern guns, but more of a gentle push. Even with the heaviest blackpowder loads my Old Army is fun to shoot and only produces a medium push. If I had to compare it to a modern cartridge, then maybe a standard velocity 38 special. Good luck. hope it helps.
.44mag