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Discussion Starter · #1 ·
I picked up a GP100 about a month or so ago. I’ve noticed a lot of what appears to be heavy copper fouling just past the forcing cone, and there’s a spot inside the bore that is stubborn as heck. I’m wondering if the spot in the bore isn’t rust (although I doubt it is). The cylinder chambers had a good amount of copper fouling in them as well which seemed to respond well to boretech copper solvent and some elbow grease. I’m wondering if this gun wasn’t fired a bit at the gun shop that it came from. It was a gun broker purchase so not a local shop. I’ve attached some pictures and would appreciate any and every input I can get on this. It’s driving me nuts, but I’m not sure if I should even let it get to me or not. The gun does its job and shoots great and accurately. It’s become my new EDC. I just have a pet peeve for keeping my weapons squeaky clean.
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I’m wondering if the spot in the bore isn’t rust (although I doubt it is)
If it is rust you're seeing shooting it would blow the rust color out. It's pretty much got to be jacket fouling.
Don't think I've ever cleaned one of mine well enough so I can see the jacket fouling in the forcing cone like that.

BTW. New guns are proof fired at the factory. I have yet to see one that was cleaned before it was sent out.

Mag
 

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Discussion Starter · #3 ·
If it is rust you're seeing shooting it would blow the rust color out. It's pretty much got to be jacket fouling.
Don't think I've ever cleaned one of mine well enough so I can see the jacket fouling in the forcing cone like that.

BTW. New guns are proof fired at the factory. I have yet to see one that was cleaned before it was sent out.

Mag
Thanks for the reply. The more I mess around with it the more it seems to indeed be fouling. I have read on a few forums that Ruger is known for test firing their guns with pretty dirty ammo at the factory. I believe I’ll just shoot it and enjoy it rather than sit around and worry about the stubborn fouling. Like they say, if it ain’t broke don’t fix it. The gun shoots just fine and is very accurate for a snub nose. Thanks again for the feedback!
 
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