Thread: Chamber Dimension
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Chamber Length
Unread 03-14-2010, 07:30 AM   #3
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Austin W Hogan
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Default Chamber Length
Thanks Dean. I have the SAAMI manual here, and will post some of the figures when I have a chance. The current spec for 2 3/4 twelve gauge shells is 2.75 - .100 LOA, minimum 2 1/2 inches. I measured about 20 red and green fired cases and most are 2.66 LOA. That translates to 2 5/8 cases in 2 3/4 chambers.

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