Shooting 9mm Shotshells in a Rifle

[Stormshotty]

I picked up a 10-round box of CCI 9mm Luger Shotshells at a gun show this weekend. At the range, I shot 9 of them through my Keltec Sub 2000. I looked through the barrel immediately afterwards and I saw some spots (I'd already run about 50 rounds already). I was scared that I might have pitted the barrel with the shot that I broke it down and cleaned it. It seemed clean enough so I ran another 50 rounds through it. When I got home, I reied using a bristle brush and a swab with solvent to get rid of the spots...but they still seem to be there. There are a couple of streaks and spots in the barrel. They don't look like pits, but they have me worried. Can shotshells scratch a barrel?
Does someone have advice on how I can tell whether these things are pits/scratches in the barrel and if there are what I can do? Thanks.

http://www.cabelas.com/p-0003708210838a.shtml - Here's what they are?

 

[Jubjub]

Probably just a little bit of plastic from the shot capsules. I don't see how lead shot wrapped in plastic could damage a steel barrel.

 

[Stormshotty]

Yea, that's what I thought too (about the lead shot). Is there any way to get rid of the plastic? Does this affect accuracy and how do shotguns do with it?

 

[Art Eatman]

"bristle brush": Bronze, or fiber? The bronze should work better on something like plastic, if it's indeed plastic...

You might take one of the shells and check to see what sort of solvent might eat into it. Nail polish remover, brake cleaner, starting fluid...If one of them works, squirt some into the barrel and work a patch or brush back and forth. Just remember that those things remove all the oil, so make sure to avoid the potential for rust.

 

[oneounceload]

Plastic residue in shotgun barrels is easily removed using carb/brake cleaner, wd-40, or similar. Just remember to let it sit for a few minutes, then clean it well afterwards with your normal gun solvent. I reload 38 shotshells for my K frames - fun to shoot, at about 6-8 FEET......good for close snakes. Next time, I would suggest not trying to shoot an entire range session with them - a mag or two should suffice

 

[Stormshotty]

A bronze brush, but I didn't scrub too hard because I was afraid of scratching it. I'll try to get a gunsmith to check it out, but I will see. Maybe it just needs a few more hot rounds down the barrel to melt the plastic

Oh ounce, I meant I had run 50 rounds of the normal (Golden Bear) 9mm ammo beforehand.

 

[Red Tornado]

What kind of pattern were you getting from your carbine? I've only shot them from a pistol and got horrible results. Does a carbine make them useful?
Thanks,
RT

 

[rcmodel]

Wad plastic in a 9mm barrel?

Just shoot some regular ammo through it when you get done shooting shotshells.

The first shot or two with a jacketed bullet will take all the plastic out I betcha.

Before you ask:
No, it won't hurt a thing to shoot regular ammo after shooting Speer shotshells.

If it could, there would be a warning on the box, and there isn't!

rc

 

[UnTainted]

The patterns would be much better were the barrel not to have rifling. This would classify the weapon as something NFA, though I believe.

 

[DMK]

I tried shooting CCI 9mm Shotshells in a handgun once. After about 10 rounds, somehow one of the plastic nosecaps broke open and that shot got into the action. Not only did it jam the gun, but it was a pain to get it all out.

No permanent damage done, but I won't be shooting them again in a semi-auto.

 

[Stormshotty]

The pattern was not very good, most of the shot was on the sides. Although I shot enough shells that that target was covered in fine holes.