Quote:
Originally Posted by Fjold
You "used the the longest COAL between the three manuals". Are you jamming the bullets into the lands? Typically you can't on a factory chambered gun but I've seen stranger things happen.
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Quote:
Originally Posted by russt
possible headspace issue?
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^^This is where I'd be looking.
You went max COL perhaps out of concern for pressure but could be creating that very problem by stuffing a bullet right up in the throat. Why don't you try black smoking the bullet with no neck pressure at the case mouth and determine your maximum COL potential, then start backing off that. Are you familiar with that process? This will give you a good comparison to determine if there is a headspace issue, too.