by Siringo » Wed Oct 21, 2009 6:15 am
My experience with cast bullets is to use .452. .453 will work, but make sure the loaded round chambers easily (thunk test). I used 300's to 400's and on all weights the bullet slumped or slugged into the bore upon firing (at least my recovered bullets showed rifling engraving over a larger surface than the as cast bullet). I used bullets from Cast Bullet Performance -- which are fairly hard. I want to revisit cast bullets again, but I would like to see a gas check that is taller(?) dimensionally than the gas port.