I’m working on a universal bullet for my Ruger Old Army and New Model Army. I’m feeling that 0.001” over chamber diameter is plenty since they don’t really need to shave lead like with a sphere. I’m considering my next Accurate Mold setup for 2% tin to help me with fill issues and set to drop boolits at 0.454”. What if I were to eventually use a little more tin or try a little antimony? How far can I go before it doesn’t fit my Ruger properly? I haven’t measured all of my chambers, but they are supposed to be 0.453” so I wouldn’t want a projectile to drop any smaller than 0.4533” or so, and I don’t want any larger than 0.454” as my other gun’s chambers are 0.449” and chamfered, though I’m really contemplating further reaming it to get closer to the Ruger. I also don’t want my boolits too hard for loading in the Remington.