John,
A few of the shooters in our local Club's BP league match use the Remmy with the R&D Conversion Cylinder and Goex or handloaded .45LC black powder cartridges. Nobody takes home any ribbons most of the time due to the underize projectiles ratling down the bore as a twist is applied.
This one guy uses his own handloads and says he has a mold that's .455 to cast his own. Now if he could get the seating depth right so that the rounds would fit into the conversion cylinder without the primers touching the firing pins BEFORE he shoots the gun, I'd use his handloads!
My intention is to just have a unique plinker, but I must admit, IF I practice and the gun does well, I'd consider putting it into the competition. Right now the league classifies all revolvers together (C&B and Conversion) and nobody has shown up with a 1873 SAA. My Walker usually takes the revolver division, even though it's "out of the box", and as you know I have to aim through a notch in the hammer.
In your opinion, which conversion cylinder is the better product? I'm thinking the R&D because the six transfer firing pins do only 1/6th the amount of work as the Kirst with only one. Less chance for peening down a firing pin.
Thanks for your help,
Dave