I loaded some cast with H335, I had problems with lots of unburned powder, even tried magnum small rifle primers and that didn't help. I'm going to try going to a faster powder, maybe AA 2015 or reloader 7.
Also, did some experimenting with gas checks. Shooting cast without gas checks does not result in any leading, but accuracy went all to hell. Shooting will checks the rifle shoots just as well as with jacketed bullets.
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