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Page Armory » 50 Cal
Posted: 9/18/2004 6:04:12 PM EDT
looking at a 24'' bbl upper for an ar-15 lower from ultralight.com

but i heard that a 28''-29'' bbl provides the minimum lenght for maximum powder burning, velocity, and efficientcy

what should i get? why?

thanks in adv for the advice
Link Posted: 9/19/2004 3:21:08 PM EDT
29" is the minimum for burning all the powder in a standard mil-spec round.
Link Posted: 9/19/2004 10:07:00 PM EDT
thx man!
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