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Archived [ARCHIVED THREAD] - barrel etching question?
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
[#1]
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
[#2]
Quoted:
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
[#3]
Quoted:
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.

Archived [ARCHIVED THREAD] - barrel etching question?
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