P-90 problems - Pistolsmith

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Old 07-26-2004, 05:34 PM   #1
Join Date: Jun 2004
Posts: 285
P-90 problems

My friend bought a brand new P-90 at Academy, and it has serious chambering problems. The cartridge stops halfway into the chamber, right when it hits the roof of the chamber and should be camming over. This typically happens on the first or last round of the magazine. Anyone have similar problems? Is it the magazines?
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Old 07-28-2004, 01:59 PM   #2
Join Date: Apr 2004
Posts: 1
what ammo are you using ... I've been reading similar problems with Wolff ammo and some of the new Winclean stuff.
Old 07-28-2004, 02:30 PM   #3
Join Date: Oct 2003
Posts: 31
what ammo is the question i have a p-90 never had anyprobs . except with winclean never shot the wolf crap
Old 08-02-2004, 01:21 PM   #4
Join Date: Jun 2004
Posts: 285
Ammo is Winchester USA 230 gr. hardball, which I can shoot all day in my Kimber and never have a problem. The P-90 really only jams on the last round of the mag, which makes me want to blame the magazines. I'm thinking I'll buy my friend some extra power mag springs from Wolff's to see if they make any difference.
Old 10-14-2004, 08:50 AM   #5
Join Date: Oct 2004
Posts: 2
check the ejector mine was not allowing my ammo to go under it . It was digging into the ammo case not a problem until the last round.
Old 01-01-2005, 08:02 PM   #6
Join Date: Dec 2003
Posts: 3
A buddy of mine had the same problem. He contacted Ruger and told them about the problem. They sent him a new extractor. Don't know if he put it on his P90 yet. Haven't taled to him in a while. I thought it was my reloads. My reloads work great in my P90, but not his. He tried a new magazine, stiil wouldn't chamber the first round. He bought 100 of Winchester 230 gr. FMJ. Same problem. So it is the pistol. Gearyr
Old 10-30-2010, 03:01 PM   #7
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Join Date: Oct 2010
Location: Alaska
Posts: 1
I know this is an old thread but I had the same problem and tried a Wolf 13# recoil spring set and that fixed the problem. Yeah no more jams!

Old 08-14-2011, 02:32 PM   #8
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Join Date: Aug 2011
Location: AZ
Posts: 17
Also, Check your Recoil spring, I had a p90, same problem, called ruger and a tech there said to check and make sure the spring isn't on backwards. The small end gos on over the guide rod. larger end go's into the slide
Old 12-15-2011, 09:34 AM   #9
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Join Date: Dec 2011
Location: Arkansas
Posts: 2
P90 Problem

I has a similar issue with a P90 that I was to use as a duty weapon. Went to the range to qualify after shooting ~300 rounds at home and the first round fired, then the slide would not go into battery. Called Ruger, shipped the weapon to them. They replaced the barrel link. Said that it was pushing the barrel into the slide with too much tension. Upon return, I qualified with the most accurate .45 cal pistol I have owned. Never a jam, stovepipe, FTF or any other problem.

Just my .02


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