PM40 jams on un-fired round when racking the slide manually...

[Vetack]

I have a newer PM40, 350 rounds without any major issues.

I just started utilizing it for my EDC, and have discovered a new problem:

When I get home and unload the pistol, the un-fired round jams on extraction.

It appears that the rear end of the round is sliding down before getting sent flying.

Anyone have any recommendations?

https://www.dropbox.com/s/cm88l1basfrfn43/pm40_jam.jpg?raw=1

[lee1000]

Your picture doesn't appear

How forcefully are racking the slide back?

[Vetack]

Photo fixed.

I have tried both racking nice and slow, as well as racking hard and fast.
Same result: Rim drops down while the nose jams in to the edge of the chamber.

[CJB]

That is not totally unusual.

My PM45's do the same thing, and the PM9 does too, depending on the ammo.

See the cut in the side of the ejection port on its vertical surface? That is to allow better extraction. Some rounds are longer, and do not clear that cut. Generally, this is a problem only as you stated it, unloading after carry.

Get shorter rounds or deal with it.

Or as my grand father used to say "Wassamadda for you Sonny? Wadda yado the stupido anna unload for?"

[Bawanna]

Many have just relieved that little area right at the bullet tip where it hangs up. It doesn't take very much.

Also it seems to help if you eject with gusto. I think basically this makes you pull the slide as far as it will go and not short stroke it.

It's an easy fix. Probably a thread around here someplace where it was talked about.

[Vetack]

It just worries me in a SHTF scenario...

If I ever did have to use it, and if I ever did have a FTF, and if I go to clear it and this happens...

[Bills1873]

My cm45 does it. I remove the mag, then slowly rack the slide and let the chambered round drop out the bottom.

[Bawanna]

It just worries me in a SHTF scenario...

If I ever did have to use it, and if I ever did have a FTF, and if I go to clear it and this happens...

Never worry, it takes years off your life. Just break out the dremel with a small stone or sanding disc and take a tiny bit off there at the top of the ejection port, top right corner.
You don't get into the chamber or anything, doesn't take much. You'll be golden.

Let me look for that link, might be pictures. I think Greg wrote up something.

[Bawanna]

http://www.kahrtalk.com/showthread.php?1612-CW45-(and-other-poly-Kahr-pistols)-issues-and-fixes/page9

Take a look at 45 won't eject a live round. You got the same thing only a 40.

[Vetack]

Take a look at 45 won't eject a live round. You got the same thing only a 40.

I was going to comment that it is hanging up on the chamber of the barrel, not the ejection port of the slide, but then I clicked on your link. So it looks like they are removing a piece of the hood above the chamber? Very interesting. Never really noticed it before...

I will take a picture from a better angle when I get home. I am fairly certain mine is catching the ride side of the chamber, not that ramped shaped hood above it.

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[lee1000]

What grain of bullet are you shooting? If your using 180s try the shorter 160.

[Vetack]

What grain of bullet are you shooting? If your using 180s try the shorter 160.
These are 165gr Speer Gold Dots.

Here are photos of two more jams.

http://uploads.tapatalk-cdn.com/20161113/4ae840cabedfb8a32139004e622fd179.jpg

I guess it could be the hood pushing it down before it gets flung out, but it is almost as if the ejector is too short. I don't understand why it is allowing the back end of the round to drop down in front of it instead of riding along the top. If the round would stay on top of the ejector then it wouldn't stop the slide from traveling back and would then properly eject the round.

[Bawanna]

I could fix that in 5 minutes with a dremel tool.

[Ikeo74]

Well, the problem as I see it is this. The first thing you are doing is removing the magazine, that is good. Then there is no support under the last round as it is pulled from the chamber. Gravity is not your friend at this point. The bullet drops down because there is nothing under it to keep it in the correct position to be ejected. To fix this without altering anything is to hold the gun with the ejection port facing "down" and let gravity work for you. The bullet will fall out the ejection port. Or as someone else suggested, hold the gun upright and let the bullet fall down through the grip where the magazine was.
This problem will not occur when the magazine is in the gun and you are trying to clear the gun from a malfunction. the magazine will support the round you are trying to eject. Try this method, it works. Use snap caps if you have them. Most brands of automatic pistols will have the same problem when you empty the chamber without the magazine in place.

[Vetack]

It occurs with both the magazine in place or removed, and with the gun pointer upwards or leaned upside down.

After many cycles last night trying to figure out a possible solution that didn't involve a dremel, I was able to get it to consistently unload around 5 out of 6 rounds if I really let it rip.

I think I am going to give Kahr a call before I start modifying it, and I am hoping if needed I can send back a piece or two in instead of the whole gun. Given that I am in California I really don't want to deal with having an FFL ship the gun back and wait to receive it for me.

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[berettabone]

Well, the problem as I see it is this. The first thing you are doing is removing the magazine, that is good. Then there is no support under the last round as it is pulled from the chamber. Gravity is not your friend at this point. The bullet drops down because there is nothing under it to keep it in the correct position to be ejected. To fix this without altering anything is to hold the gun with the ejection port facing "down" and let gravity work for you. The bullet will fall out the ejection port. Or as someone else suggested, hold the gun upright and let the bullet fall down through the grip where the magazine was.
This problem will not occur when the magazine is in the gun and you are trying to clear the gun from a malfunction. the magazine will support the round you are trying to eject. Try this method, it works. Use snap caps if you have them. Most brands of automatic pistols will have the same problem when you empty the chamber without the magazine in place.
My MK will occasionally do this if I don't(as mentioned) give that slide a good rip, I usually tilt it sideways when ejecting any left over round. Your firearm only has 350 rds. through it, and is still tight also. I stay away from longer ammo such as Fiocchi, because of the extra length, in comparison to other ammo. It has caused me a few issues with fte's.

[railroader]

It occurs with both the magazine in place or removed, and with the gun pointer upwards or leaned upside down.

After many cycles last night trying to figure out a possible solution that didn't involve a dremel, I was able to get it to consistently unload around 5 out of 6 rounds if I really let it rip.

I think I am going to give Kahr a call before I start modifying it, and I am hoping if needed I can send back a piece or two in instead of the whole gun. Given that I am in California I really don't want to deal with having an FFL ship the gun back and wait to receive it for me.

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You don't need an FFL to send your gun to kahr. I sent my cm9 back because it broke mag followers.
They sent me a shipping label and I took it to either FedEx or UPS. They shipped the gun back to me when it was fixed. This was in California too.

[Bobshouse]

The only time you need a FFL in California is if they replace the frame. New serial number, new DROS, new 10 day wait. Unless it's off list, then its kinda bad, cause you cant get your gun back.

[yqtszhj]

If you feel brave ever so slightly take just a tad off the ejector. not much, just a smidge. I did that to my cm45 and it made all the difference in the world. no problems with ejection when firing either. make sure to keep any angles the same.

i liked that better than stoning the barrel .