Quote:
Originally Posted by PhilOhio
FYI Andy, I measured my Smith chamber mouths to be .4535, about as good as I could hope for... .0015 over bullet diameter.
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Phil, It has been shown that moderately oversized throats do not harm accuracy. Undersized is the problem.
You are loading 0.452" bullets, but only belling the case IDs to 0.450"? I don't see how you can even get them into the cases! You should be belling the case IDs to a few thousandths over 0.452" with the powder die, just before inserting the bullet.