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Longshot, I use a L-N-L OAL gauge for finding the max OAL for any new bullet/rifle that I am loading for. I find the max and back the OAL down by 0.050 inches. Some may say this is too much but it has worked out very well for me.
Two reasons I do this is:
1: I do not have to worry about additional pressure build up do to the bullet sitting on the lands and taking more energy to start the bullet out of the case.
And
2. No worry about concentric run out and that the bullet is perfectly centered in the mouth of the case.
it would seem that the additional 0.030 gives me that luxury.
Jim
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Si vis pacem, para bellum
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