I'd like to shoot some 190-grain Flat Nose cast pills in my S&W 10-5. This will be slow (under 800 fps) and the bullet alloy is quite soft - scrap lead with a few COWW added - dents by fingernail with little effort...
Ball end diameters of the Smith's cylinder measure 0.3575-0.3580".
The bullets are sized 0.359".
Am I asking for trouble with the bullets being up to 0.0015" over ball end?