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Posted: 2/24/2006 5:34:04 AM EDT
I own a Pre-ban AR-15 lightweight sporter with a 16"barrel. Etched on the barrel is C MP 5.56 NATO 1/7

Can someone tell me what that means? I know 1/7 is the twist. And is a 1/9 better or worse?
Link Posted: 2/24/2006 5:51:17 AM EDT
[Last Edit: 2/24/2006 5:52:00 AM EDT by chris157c]
Colt, magnetic particle tested, chamber, twist rate.

i think.... Maybe the C is chrome lined... i forget...
Link Posted: 2/24/2006 4:01:30 PM EDT

Originally Posted By jark:
I own a Pre-ban AR-15 lightweight sporter with a 16"barrel. Etched on the barrel is C MP 5.56 NATO 1/7

Can someone tell me what that means? I know 1/7 is the twist. And is a 1/9 better or worse?



Better or worse for......??
All depends upon the round you're shooting... and that depends upon what it is that you're trying to accomplish.

Are you plinking, hunting, HD, competition?
Link Posted: 2/24/2006 6:37:12 PM EDT

Originally Posted By jark:
I own a Pre-ban AR-15 lightweight sporter with a 16"barrel. Etched on the barrel is C MP 5.56 NATO 1/7

Can someone tell me what that means? I know 1/7 is the twist. And is a 1/9 better or worse?



That is stamped not etched.
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