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Failure to Feed Problem

Posted: 28 Jul 2012 05:31
by Airwolf
I ran into a problem at the range today.

My R921 developed a FTF problem where the round did not rise up to enter the chamber but instead, the rear of the round lodged against the loading gate and got stuck.
This occurred after firing some particularly heavy loads.
The carrier operation seems to be a bit sticky as well.
I recently installed the spring kit, but I ran a few hundred rounds through it after the mods without problems.
I'm going to check for loose screws and possible failure of the cartridge stop resulting in double feeding.
Ejection seems normal.
The ammo was .357 Magnum, with a 158G Speer jacketed Hollow Point. OAL was well within normal range.

Any ideas or suggestions from the collective would be much appreciated.

Jeff

Re: Failure to Feed Problem

Posted: 28 Jul 2012 08:03
by Ranch Dog
Jeff the only thing I might do before taking it down is spraying an appropriate gun oil in the action and then cycling the heck out of it to see if it clears up. May be at the shot, some cartridge debris blew into the action. Something surprisingly small can create some surprisingly large problems. As stout as the innards of the 92 are I do not think that heavy recoil is going to knock anything loose or cause any damage. With the bolt closed, things are tight.

Re: Failure to Feed Problem

Posted: 31 Jul 2012 19:16
by Trailboss
Airwolf wrote:My R921 developed a FTF problem where the round did not rise up to enter the chamber but instead, the rear of the round lodged against the loading gate and got stuck.

Any ideas or suggestions from the collective would be much appreciated.

Jeff
Jeff, did you buy your M92 used?

Did you remove the left cartridge guide rail when you worked on it. The left rail has a small leaf spring under it.

I may be able to assist, just need to narrow down what the problem may be.

tb

Re: Failure to Feed Problem

Posted: 31 Jul 2012 19:34
by Airwolf
Thanks for your help.
  • I bought it new.
    I never touched either guide rail.
    I never had a problem until I went through 50 high power loads thus I suspect something came loose.
    I have not yet examined the gun to see if there is anything obvious.
Any thoughts are greatly appreciated.

Jeff

Re: Failure to Feed Problem

Posted: 31 Jul 2012 19:59
by 44-40 Willy
357 usually doesn't have enough recoil to shake something loose.

Re: Failure to Feed Problem

Posted: 04 Aug 2012 18:09
by Airwolf
Follow up:

It seemed to be loose screws as I assumed.

I tightened all external screws (which were quite loose, more than half turn each) and the gun seems to feed and eject both .357 and .38Sp flawlessly.

I still would appreciate comments,

Jeff

Re: Failure to Feed Problem

Posted: 10 Aug 2012 21:32
by Airwolf
I just got back from the range and 100 rounds fed perfectly.

Jeff