Bet it goes away with cleaning. Looks like a copper mark from the jacket of the bullet.
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Hi all, totally new here but glad I found this forum. I bought a glock 26 several weeks ago and recently fired it for the first time at the range. The only ammo I had with me was some armscor FMJ 147 grain subsonic. Over half of the rounds were keyholing. I wish I would of had time to try some different ammo. What I'm really concerned about is this red/orange line inside the barrel. Is this type of wear normal? I've only put 30 rounds through the gun so far and it was all that armscor ammo. Pics are below, if anyone can offer some insight or advice I really appreciate it!
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Bet it goes away with cleaning. Looks like a copper mark from the jacket of the bullet.
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I don’t know if you used a bore cleaner like Hoppes #9 or something like that and let it sit before brushing with bore brush. The nylon brushes are good for a quick clean but they don’t get the hard stuff off. Just my 2 cents.
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I tend to agree, looks like copper.
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That is too bad it is key-holing with amscor.
I had a S$W 9mm 915 that key-holed several brands ...
Find something above subsonic that works and stick with it .
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#9 is a lousy copper remover. Get Butch's Bore Shine or some other solvent with ammonia.
I wouldn't worry about it... But...
If you really want to get it out, try Cu+2 Copper Remover or Sweets... Sweets is probably the best and smells the worst...
"While the anti-gunners seem very concerned about the "one life" that your firearm might take -- they are not very concerned about the lives it will save." Jon H. Gutmacher, Florida Firearms - Law, Use & Ownership