I recently acquired an Old Model Ruger Blackhawk in 30 carbine. The cylinder sometimes over rotates. To fix this Ruger carved a tunnel between chambers so the firing pin doesn't hit steel. I don't like the fact that it sometimes rotates past and between chambers, is there anything I can do about this? Any other neat trivia or tips on the Blackhawk would be nice too. Not new to Blackhawks or 30 carbines, but am new to the two combined so any warnings or advice about their quirks would be appreciated.