Brass coming out scraped and mis-shaped. Pictures included.

[KahrFromAR]

So I have a new slide stop spring coming my way, but I still couldn't wait to fire my new pistol again. I stopped by a local sporting goods store and bought box of 250 Remington 45 acp and headed to the range. I put 150 rounds through it and while I was picking up the brass I noticed some markings on all the brass and that the throat was dented. Anyone have any explanations? I sent them to the guy I've been dealing with at Kahr but I doubt I'll get a response back until Monday.

[jocko]

have u readyour manual. the dented end of the casig is considered normal by kahr. Most all the reloaders on thisjfourjm have said it does not effect brass resizing. . I tishitting the ejection port which on these smallguns is not very large of an openng.

if the gun funtioned ok which you did nbot elaborate that it did not, thent he best advice I can give u is Just shoot it like u stol;e it.

U night want to revfiew your manual to, and maybe even visit ont he kahr tech section, two great sticky's

#1 kahr lube charty

#2 propper prepping of ur new kahr.

nice gun, quite worrying about it.

[CJB]

If the gouges in the case are deep (in picture 1) check for sharp edges on the slide's port, but smeared primers, slightly deformed cases... very normal.

[Sambo]

My cw45 dents the brass more severely than what you've shown. Before I took some fine sandpaper to the ejection port, mine would put rather sharp gouges in the end of the brass. Yours looks different though. Mine was hitting the very bottom inside edge of the ejection port, and the gauge was perpendicular to the case mouth. Yours looks like multiple parallel scratches, and I doubt it is caused by the same thing. Try slowing hand ejecting empty brass to see what is going on. That's how I figured out mine.

[KahrFromAR]

Just went back and looked for that section. I've read the manual, but admittingly not every word, cover to cover. But I've been having some issues that I asked about in this post here:

http://kahrtalk.com/showthread.php?t=7146

Anyway, thanks for the replies. It's probably just normal.

[Bawanna]

My PM45 deforms the case mouth, not enough to hinder reloading, just a little tweaked. It does not put any scratches on the case as in you pictures. As the fellas above stated, I'd look for rough edges in the ejection process and smooth things out to eliminate the scratches.

[dirty_sanchez]

Damaged brass?

Here's mine from this past weekend. It only happens with the hot loads, 1,100fps with 180gr XTP's.

What's the consensus of the crowd?

http://i48.photobucket.com/albums/f247/lauriefromla/ChipsAlbum/IMG_1695.jpg (javascript:void(0);)

Dirty

[OldLincoln]

That's a pretty bad mess there Dirty. I haven't had the pleasure of shooting a Kahr 45 YET, but put quite a few through a 1911 and nothing closely resembling that one.

[Ikeo74]

This reply is to dirty sanchez

Don't shoot any more of the hot loads. Something is wrong to cause that much distortion. I bet they are overcharged. If you reloaded them, take several, pull the bullet and reweigh the powder load. Then compare it to the factory printed load data to see if you are way over safe limits. Do every one you shoot look that bad? If so, you are getting close to a gun blowup disaster. Don't shoot any more until you check and double check. Print your load information for us to see and verify as safe or not safe.

[dirty_sanchez]

This out of a PM40.

7.7gr of Longshot with Hornady XTP 180gr bullets at 1.125"

8 Grains is max. A few cases out of 20 turn out like this.

No smilies and no flattened primers have ever been noticed.

Thanks for the concern guys.

Dirty

[gb6491]

..A few cases out of 20 turn out like this...My guesses:
1. The occasional case is coming off the extractor a hair early so the ejector isn't kicking it out hard/fast enough to entirely clear the port before the slide returns and pinches it against the barrel.
2. The empty case from the last round in a magazine, without another round in the mag to support it, droops/slips down enough that it hits the magazine. The magazine acts as an ejector, but the angle is not optimum and the timing is off so you might expect a jam when this happens.
3. Every so often, you are not providing enough resistance for the slide to cycle properly/completely in time which results in the case being pinched by the slide.

As you only experience this with hot loads, I'm inclined to think #3 is the likely culprit. The stouter recoil is probably torquing the gun just enough that you don't have an optimal grip every time you fire.

Regards,
Greg

[OldLincoln]

No chiding here Dirty. I find when I get tired (happens sooner now days) my weak hand wants to slip off the grip and the gun pulls up and right a little. My 9 is well used and all was okay but made for a lousy double. I tell folks if their weak hand slips they need to work on that. Just a thought.