Yes, the heavier conical well have more recoil force for the same powder charge. I would avoid conicals in a brass frame, or at least reduce the powder charge even future.
Thanks, that is what I was thinking. I am now convinced that a brass frame is not what I'm looking for, at least for my first BP revolver. I may still pick one up at some point, when the deal is right, but I'm going to buy a steel frame first.
