Thread: COAL ?
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Old November 2, 2012, 03:41 PM   #4
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Join Date: August 1, 2010
Location: Tampa Bay
Posts: 4,557
OAL in the "books" is just a guide...
Military rifles and semi's like the AR typically have more generous chambers to help ensure functionality. Tighter tolerances may mean more accuracy, but also a higher possibility of malfunction in a production weapon system.

Keep at least one bullet dia. in the case neck, and experiment with the bullet comparator as suggested above- and you'll need the OAL gauge and a .223 modified case to go with it.

As long as you've got enough bullet in the case neck for adequate tension, and you're not jamming the ogive into the rifling, you're gtg...
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