Thread: Chamber reaming
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Old January 9, 2013, 10:42 PM   #3
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Join Date: October 18, 2006
Posts: 7,089
I am assuming that the bullet needs to be seated so as to use all the bearing surface of the cartridge neck as possible, yes?
No. The bullet needs to be seated only deep enough that it doesn't fall out. The 30-06 M2 ball load did not use the full neck, and millions of Garands cycled that load just fine without the bullet coming loose, but a crimp and sealant help out in that load.

Machine guns are awesome until you have to carry one.
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