Thread: .300-221 and .300 AAC case and OAL specs?
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Old 01-03-2011, 12:07 PM
rsilvers rsilvers is offline
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Join Date: Mar 2010
Posts: 482
Brass should be 1.348 to 1.368.

Loading ammo longer than about (depending on the bullet shape) 2.150 tends to not feed well from a USGI mag with more than about 10 rounds in it.
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