The only times I had leading in 1911 Colts (1911, 1911A1, and a Series-70 1911A1) was when I used straight linotype. Got poor accuracy too no matter the powder or charge. Switched back to 10-12bhn soft alloy and all was right with the world again. .452 diameter always too.
Last edited by gnoahhh; 04/07/19.