Walther PPS M2 casing crimp

[9milnoob]

I recently purchased a PPS M2, and a good friend at the range noticed a small "crimp" mark in my discharged casings. Just wondering if anyone else has noticed this with a Walther product, or perhaps any firearm manufacturer, and also, is this something to be concerned about?

I'm also wondering if any PPS owners have had to make significant sight changes to get her dialed in?

The attached pics show a case from the gentleman beside me vs. two different manufacturers out of the PPS.

 

[sigarms228]

That indicates the pistol has a stepped chamber which I believe at least some Walthers and HKs have. I never really payed attention to the brass on my original style PPS but I bet it is the same.

I have not read of any PPS owners having to make significant changes to the sights as they come from the factory. A visual inspection should show if they are off center and I believe the front sight is screwed in and the rear sight in a dovetail so the rear sight would be suspect if it is off. Have another shooter try to shoot the pistol or shoot from a rest to verify if the problem is the sights or the shooter. Right hand shooters are mostly prone to shoot to the left or left and low with less than ideal technique in grip and trigger control and smaller pistols can sometimes be an extra challenge.

 

[9milnoob]

-sigarms, thanks for the reply.

I have no idea what a stepped chamber is, but that will give me something fun to research tonight.

In regards to the sight adjustments, I've had two other guys shoot this with the same results... all three of us were left of target. Two inexperienced shooters, and one experienced.

You are correct, the front sight is a screw, and the rear is dovetail. I went to the range last week, and adjusted the rear until I felt confident. Didn't have blocks or bags so I was standing in an isosceles stance, and seemed to have it dialed in after about 20 rounds.

I went to the range today and felt good about the results, and also had an experienced shooter try it just for kicks...

After putting three rounds in the red, he turned around and said, "this is way better than it was before".

Overall, I'm very satisfied with this firearm and I feel confident in my abilities to use it, but I'm not comfortable with the fact that the rear sight is hanging near the edge of the slide.

See attached pic

 

[sigarms228]

IMO the sight should not have to be moved that far but if it works for you I would not worry about it. I had a tendency to shoot mine to the left a little when I first got mine. I found that I had to tighten my strong hand grip a bit pinching the grip front to back into my strong hand and I use the first joint of my trigger finger on the trigger rather than the finger pad like i us for most my other pistols.

Last time at the range with my PPS I shot 14 rounds (two magazines) at a three inch dot target at 21 feet. For the second magazine I slowed down for maximum accuracy and put 6 rounds in the group just above the red dot which is dead center and my sights are what they were from the factory.

Like I said it is not unusual for us shooters to have a more difficult time with the smaller pistols because the grip may not interface with our hand and fingers optimally and if moving the sight worked for you and continues to work for you then go with it.

 

[308Loader]

9milnoob, I don't see a pic of how far the rear sight needed to be shifted. I would assume three shooters would probably not have the same grip or trigger pull causing the POI to consistently hit left of POA.

A stepped chamber is something I also am not familiar with, I have some range pickup brass with similar marks on it, seems to be right where the crimp for the bullet would be. Not sure what benefit the step would have. a 9mm indexes on the case mouth, so why would a manufacture squish it down some? I do know one trip through the reloading press and they go away .

If you chamber a round without firing it dose make the same indentation on the case mouth, or is it only fired cases?