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Old 07-19-2012, 21:38   #9
Senior Member
Join Date: Dec 2011
Posts: 565
Yep, either a short/tight throat, or just the chamber is too tight for cast bullets. My LW barrel was that way; it wouldn't take .401" cast bullets with most brass. I lapped the chamber using a couple pieces of fired brass, no issues now. You only need to remove a couple thousandths, so it's an easy job.

I firelapped mine too, to open up the throat a bit. The LW rifling needs some smoothing anyway. CM, being a sixgun guy, I assume you're familiar with firelapping, using your cast bullets? You'll have to open up the chamber first, of course.
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