Narwhal
Member
- Joined
- Feb 8, 2010
- Messages
- 261
Hi,
I recently purchased a USP 40 compact. The first thing I did was clean the pistol thoroughly. Then I lubricated it with CLP as instructed by the owner's manual.
So I took it to the range and had problems almost right away. I fired 120 rounds but had 6 "jams". I was loading the pistol up to it's maximum capacity of 12+1 every time, and the jams always occurred during the feeding of the 12th or 13th round (last round in the mag). Sometimes it would look like a double feed with the 12th round being unfired but wedged between the chamber and bolt face. A few other times it was a more traditional stove pipe with the fired 12th round case just jamming up the slide. Sometimes the 13th round would stovepipe, preventing the slide from locking all the way back after the gun had fired all rounds.
I used 3 different H&K magazines, all brand new and purchased from H&K with the pistol. All 3 magazines exhibited the problem. I used two difference kinds of ammo, Monarch 180 gr FMJ and Blazer 180gr FMJ. It did it with both types of ammo.
I also noticed A BUNCH of shaved brass all over the magazines when I ejected them. In addition there was sometimes shaved brass in the chamber/barrel after a malfunction, which i would blow out. Also the brass on the malfunctioning rounds sometimes had a round dent in the side of the case, like it had been impacted by some kind of rod.
I found this all very odd....I have shot a different USP 40c for over 1000 rounds and had no problems at all.
I have done a search for this problem and it seems like other people encounter it but have not heard a good solution. Any help is appreciated.
I recently purchased a USP 40 compact. The first thing I did was clean the pistol thoroughly. Then I lubricated it with CLP as instructed by the owner's manual.
So I took it to the range and had problems almost right away. I fired 120 rounds but had 6 "jams". I was loading the pistol up to it's maximum capacity of 12+1 every time, and the jams always occurred during the feeding of the 12th or 13th round (last round in the mag). Sometimes it would look like a double feed with the 12th round being unfired but wedged between the chamber and bolt face. A few other times it was a more traditional stove pipe with the fired 12th round case just jamming up the slide. Sometimes the 13th round would stovepipe, preventing the slide from locking all the way back after the gun had fired all rounds.
I used 3 different H&K magazines, all brand new and purchased from H&K with the pistol. All 3 magazines exhibited the problem. I used two difference kinds of ammo, Monarch 180 gr FMJ and Blazer 180gr FMJ. It did it with both types of ammo.
I also noticed A BUNCH of shaved brass all over the magazines when I ejected them. In addition there was sometimes shaved brass in the chamber/barrel after a malfunction, which i would blow out. Also the brass on the malfunctioning rounds sometimes had a round dent in the side of the case, like it had been impacted by some kind of rod.
I found this all very odd....I have shot a different USP 40c for over 1000 rounds and had no problems at all.
I have done a search for this problem and it seems like other people encounter it but have not heard a good solution. Any help is appreciated.