One thing to consider with a rifle revolver combo is barrel diameter size. The 44 mag Marlin, at least the one I had was fairly large at .431. A Ruger Blackhawk may have a .429 barrel which would make this combo probably fine with jacketed, but wouldn't work well for sharing cast rounds. I now have a 45 Colt barrel on my 1894 and it slugs just right with my BH 45. I can now buy the same cast bullets for both so don't have to keep any of my ammo separated. Of course with the 1894 45 Colt, I wont ever own a New Model Vaquero in 45 or Colt SAA because then mixing the wrong ammo in the weaker revolver could be disastrous. Other than that I think any of the combos would be great fun!Point Doc said: