At one time I had five nines. I never used anything but lead. I have 4 different Lee molds, round and conical nose, "standard" and TL. All are sized to 0.456 and I only use Bullseye. I have tried 115 grain, but the 124's work best.

Three of the pistols needed their own specific bullet shape to cycle properly. My Smith 39 ran well with 3 of the loads. Last year I bought a Glock 19X and it digests all of them. In fact, about 3000 rounds now and not one single malfunction.