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Old 09-07-2013, 06:38   #1
ancient_serpent
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Mark inside barrel

Hi, if anyone can offer some advice or at least opinions, I'd appreciate it.
I was cleaning one of my AR's and noticed that inside the barrel, just past the end of the chamber, there was a small groove, or at least the rifling looked stripped away for about 3-4 inches. This is at the 12 O'clock position inside the barrel, when I looked at it from the breach end while cleaning. It doesn't look to be very deep, but has anyone had this occur before?
Is this sort of thing typically dangerous?
I'm thinking I may need to go see a gunsmith, but I figured I'd ask here first.
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Old 09-07-2013, 07:42   #2
K. Foster
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Without seeing what you are seeing, my best advice is take it to a ‘smith. You said “One of your AR’s”. If your others don’t have the grove, I would definitely be concerned.
Do you have an idea how many rounds have been shot through that barrel? Have you noticed a sharp drop in accuracy? Just curious, what brand is it?
I advise not shooting it until you get it checked out.
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Old 09-07-2013, 08:13   #3
Big Bird
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Have you cleaned this gun from the muzzle a bunch?
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Old 09-07-2013, 08:53   #4
WoodenPlank
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Quote:
Originally Posted by K. Foster View Post
Without seeing what you are seeing, my best advice is take it to a ‘smith. You said “One of your AR’s”. If your others don’t have the grove, I would definitely be concerned.
Do you have an idea how many rounds have been shot through that barrel? Have you noticed a sharp drop in accuracy? Just curious, what brand is it?
I advise not shooting it until you get it checked out.
This.

If the barrel hasn't been shot a lot, get it to a smith. If it's got several thousand down the tube, it might just be wear.
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Old 09-07-2013, 10:50   #5
ancient_serpent
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No, I always clean from breech to bore. The gun only has about 3000 or so rounds through it. No noticeable loss in accuracy. The brand is POF. It seems very well made, haven't had any problems with reliability at all.

I was thinking a gunsmith; seems like I wasn't alone in thinking that. Just seems a much better idea and a bit safer, too.

Good stuff, I'll get it to one and if it is something weird I'll post it here in case anyone else has the same issue later on.
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Last edited by ancient_serpent; 09-07-2013 at 10:52..
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Old 09-07-2013, 15:39   #6
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Well, just got back from the shop, he took a look inside the barrel and said it wasn't any big deal. Wasn't sure how it happened, but the damage isn't bad. The rifling was stripped away for a couple of inches and there is a scratch inside, it could have been done by the previous rifles owner. He said it was safe and should be good for thousands of more rounds.
Good times; thanks for the advice all.
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