Rifling Chipping Away??? Should I Still Shoot It???

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Sniper69

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Hi everybody. I have a problem with one of my pistol barrels and I was wondering if you experts can look at my pictures and help me out.

The other day I was cleaning my barrel and I noticed what I thought was a dirty spot or leading. It turns out that there is a chipped spot in the starting of the rifling. I bought the pistol 2nd hand and it had about 300 rounds through it. I have only put about 100, 175 grain hard cast bullets through her.

Some questions I have are:

1. How could this have happened?
2. Is there any way to fix it?
3. If I keep shooting my pistol is it going to get worse?
4. If it does get worse should I still keep shooting it even though the accuracy of the barrel is going to suffer.

http://i42.photobucket.com/albums/e344/Sniper69###/1.jpg
http://i42.photobucket.com/albums/e344/Sniper69###/2.jpg

Thanks for your help
 
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I'm not up on my pistols anymore. Just curious of manufacter. I had a ruger that had literally hundreds of those throughout the barrel. Ruger warrantied it,but never got a reason as to what did it. Mine did effect accuracy but then again it had bad acne..When it comes to barrels in general I'd rather see a hickup early on than toward the muzzle. I've got highwalls that look like gravel roads but still shoot like the wind cause the last few inches are OK...Just curious if its a ruger product you got?
 
Is that the only spot in the barrel that you can see? I wanted to say that it could be caused from "flame cutting" but it doesn't really look like it, more of an anamoly in the steel.
 
Signguy/Blindside have an excellent point, this barrel could split on you, after all the lands are not glued on, that is a weird sight. I would send those photos to the maker, and ask if its safe to use it:rolleyes: , and request a barrel be sent to you through proper channels.
Frank
 
Hi guys, sorry forgot to mention it is a barrel from a Norinco NP40 (CZ85 Copy) .40S&W. I doubt Norinco would replace the barrel. I would really hate to not be able to shoot it anymore.
 
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Talk to the guys at Marstar. I know you didn't buy it there, so they probably won't give you a new barrel; but they're pretty good folks, you might be able to get a decent discount on a new tube.
 
This is not dangerous. The rifling is worn out. The chamber might not have been 100 % concentric with the bore and the bullets it more on this side or the other or just plain wear.
Accuracy will eventually go trouht the window as it get worse. The land are cutted in the barrel and there is no danger of splitting as suggested.

Use it but start to look for another barrel.
 
I feel pretty safe saying that that is not wear on the rifling. It looks to me like there was a lamination or inclusion in the steel when the blank the barrel was made from was forged. Early springfield rifles had problems with this, though in their case the fault ran down the barrel wall and would fail in time. It could be poor heat treating, causing a brittle condition, but I doubt it. If it was mine I'd probably call marstar and try for a new barrel. It's probably safe in a handgun caliber, but only probably. Better to get a new barrel instead of risking your slide\frame if it fails.
 
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