New PM45 Range Test

**a.squibload** · 03-07-2010, 11:07 PM

Wyntrout, I can solve your problem. Borrow one of those feminine pads, peel off the
backing and stick it on your forehead, it will absorb impact from the cases and prevent
injury. As far as your feed problem, I have no idea. Hope this helps... :>)

**a.squibload** · 03-07-2010, 11:18 PM

Sorry about that, can't help myself.

In your video, after the magazine seats it looks like the case rim is tight against
the breech face (proper term?). Will the slide move any farther back from lock?
SWAG that the slide lock might be at fault? Bevel looks like a good fix.

Wondering if your slide's rearward travel is restricted somehow, don't know enough about it,
is there a buffer? Couldn't be dirt on a brand new piece, maybe a burr? You've had it
apart, probably would have seen that.

PM40 suggested technique is to lock slide, insert mag, release slide.
When new, mine wouldn't feed cycling by hand, only by releasing the slide lock.
Tried it again recently, now it works by hand.

**gb6491** · 03-08-2010, 12:17 AM

Originally Posted by a.squibload

Sorry about that, can't help myself.

In your video, after the magazine seats it looks like the case rim is tight against
the breech face (proper term?). Will the slide move any farther back from lock?
SWAG that the slide lock might be at fault? Bevel looks like a good fix.

Wondering if your slide's rearward travel is restricted somehow, don't know enough about it,
is there a buffer? Couldn't be dirt on a brand new piece, maybe a burr? You've had it
apart, probably would have seen that.

PM40 suggested technique is to lock slide, insert mag, release slide.
When new, mine wouldn't feed cycling by hand, only by releasing the slide lock.
Tried it again recently, now it works by hand.

Once the magazine seats there is a little space between the round and the breech face:

The slide can be moved a little further back: enough to release the slide lock.
I have a another slide lock (a MIM piece), but there looks to be no difference in position when it is installed.
No buffer, there's nothing I've seen that looks like it's limiting the slide's travel. I did this tweak some time ago and have had not had the problem since (I'm up to about 750 rounds through it).
Regards,
Greg

**wyntrout** · 03-08-2010, 01:10 AM

Thanks for the inputs, guys. I'll email and/or call Kahr tomorrow. This looks like a design flaw. The slide is locked back and the magazine's top round doesn't clear the bottom of the stripper and unless you apply enough force to make part of the cartridge rim give way so that the cartridge is pushed forward enough and slides up the striker housing. There should be some kind of gap there. It's about 3/16" on the PM9 (eyeballed).
I tried making the underside of the ejector more like the PM9, thinking that it was pushing the rear of the top cartridge down. While doing that, I had an oopsie with my "Dremel-Like" tool and took a bit off the inner wall of the frame opposite that. I think it was the grinder bit and the polish "wheel" that touched the frame... oops!

I did notice a burned plastic smell... odd.

I think that we just need to get the cartridge and ammunition manufacturers to bevel the base of the cartridge cases and things would be hunky dory.

Wynn

I emailed Kahr Technical Support
service@kahr.com and put "To the attention of Ian".
I'm waiting on Samsung repair today and now Kahr to contact me. 05:47/8 March.

**wyntrout** · 03-08-2010, 09:46 AM

Well, the TV is fixed and I'm waiting to hear from Kahr. My buddy's coming over shortly to help me hang the TV back up on the wall. Then I have a lot to do moving stuff back in place and hooking up everything again. I still have to put the rest of my gun cleaning kit and stuff away, too. Another busy day where I don't get everything done. At least I got the wash done yesterday... for a few days, anyhow.
Being a house-hubby can be a lot of work and when you have hobbies and yak online or shop most of the day, stuff can pile up... more than usual.
Dang, I have a week's worth of newspapers on the card table waiting my perusal... old news by now, there are the comics and Jumble. I've got to keep my mind active.

I still have some reporting and pictures to post, but I need to get on other stuff now. It's another bright and beautiful day here in Northeastern Florida ~ 63°. Later!
Wynn

**wyntrout** · 03-08-2010, 01:59 PM

Well, I emailed Kahr Service around 530 am and the about half an hour ago and after I found the phone number, called them. I talked to Ian, who answered the phone, and he's sending FedEx to pick up the gun and the two included magazines tomorrow. It's nice to have more than one, and my main CCW has been the PM9.
Now I can go start hooking up my TV. It's up on the wall again, but it will take half a day to hook everything back up. I have nothing more pressing than a nap.

Maybe a quick ammo report on the Speer 9mm 124-grain GD SBs +P.
Later.
Wynn