Denting shells problem - Kahr K40


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MyRoad
March 28, 2004, 05:53 PM
I put about 75 rounds through my new K40 last week at a range where they clean up the empty shells, so I didn't notice if this issue started right out of the box. This week I went to a club I belong to where we pick up our own brass when we're done shooting, and noticed this pretty obvious issue. The gun has a total of about 150 rounds through it now. It did NOT have a single FTF/FTE. I fired 155gr Federal, 180gr. S&B, and some Speer Gold Dot through it. A few shells were not dented as badly as others, but I can't tell if it happened with varied severity, or if the problem got worse as I shot more.

Any thoughts on why this is happening? Should I plan on sending the gun back to Kahr?

Thanks -
http://www.xlr8nrg.com/images2/dent_40.jpg

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NJ3
March 28, 2004, 08:01 PM
My K40 does the same thing, and it's normal for the pistol. Read page 16 in your Kahr owners manual. :D

M1911
March 28, 2004, 08:06 PM
All of my Kahrs (K40, K9, MK9) dent the shell casing. And they are all perfectly reliable.

Worry about important things. This isn't one.

HSMITH
March 28, 2004, 08:47 PM
That is caused by an extractor to ejector to ejection port relationship that isn't exactly right. Recoil spring weights can play a large part in the severity also with high slide speeds showing a tendency to dent the cases worse than a slow slide speed.

If the gun works 100% let a sleeping dog lie, if the gun chokes these cases can help determine why. Some guns are perfectly fine while mangling cases, like the Glock 9mm and 40's, while with others like the 1911 types the dinged cases indicate major sickness.

If your gun works leave it, if it hangs up holler back.

MyRoad
March 28, 2004, 09:58 PM
Thanks for the info... page 16, huh? Must have missed that... :D

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