M305's bolt jumped the receiver's groove, now it won't pass assembly test.

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CorditeShark

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Today the bolt of my M305 got stuck all the way back during shooting.

A field strip revealed that this part of the bolt had "derailed" from the groove and jammed edge-against-edge right here. (Not my pictures)
2fCMg.jpg


A gentle tap with a rubber mallet pushed it back in, and a full disassembly revealed only a tiny scratch on the bolt's tooth.
But now that I have reassembled everything the hammer won't lock with the sear if I keep pressure on the trigger and manually pull the handle. The hammer simply returns forward with the bolt.

It locks if I pull the handle without pressing the trigger, and I have tested the trigger group alone and it engages fine on its own.

I'm thinking that maybe when the bolt derailed it pushed down the trigger group down and now that is what causing this problem, but I am just speculating and don't know what to do.

Any help? Or gunsmiths in the PrinceGeorge area who work with long guns and know what they are doing?
 
The M-14 Doc is the guy to ask about the bolt jumping out of the track and any other issues , but if if it did force your trigger group downwards that would cause the problem with the hammer following the bolt as you described .
 
I would think that the failure to pass in stock safety tests in more apt to be stock related
I am curios as to what would cause your bolt to jam in the rear of it's stroke, unless it unseated from the oprod.
I would not fire the rifle until a thorough inspection of the receiver bridge and stock fit are completed and verified as safe.
If it's new and purchased from a reputable dealer, if it were me I'd ask to exchange it, as what you describe, is not normal function of the rifle and is a safety concern.
 
M14Doctor said:
I would think that the failure to pass in stock safety tests in more apt to be stock related
I am curios as to what would cause your bolt to jam in the rear of it's stroke, unless it unseated from the oprod.
I would not fire the rifle until a thorough inspection of the receiver bridge and stock fit are completed and verified as safe.
If it's new and purchased from a reputable dealer, if it were me I'd ask to exchange it, as what you describe, is not normal function of the rifle and is a safety concern.
Click to expand...

Got it, thanks. I was afraid it would come to that, but it is a recent purchase (Only a month old and barely passed the 100-cartridges mark with factory loads) from one of the dealers on top of this page. I will contact them about this.

I see no indication that the bolt unseated, not even momentarily. I can't really feel inside of that groove but I'm thinking the tooth I indicated snagged on some rough machining and that caused the bolt to tilt down.
 
3 questions CorditeShark
  1. Is that the bolt that came with your rifle? If so are they realy 2 different color's? Also do the numbers match?
  2. What is the grey stuff on the bottom of the reciever and on the side were the trigger locks up?
  3. Is this the new shorty M14 from CanAm? Or the new Marstar ones?
 
Satain said:
3 questions CorditeShark
  1. Is that the bolt that came with your rifle? If so are they realy 2 different color's? Also do the numbers match?
  2. What is the grey stuff on the bottom of the reciever and on the side were the trigger locks up?
  3. Is this the new shorty M14 from CanAm? Or the new Marstar ones?
Click to expand...

Those are not my pictures. I just selected some pics at random from Google of the components involved in the malfunction.
 
Your SOL around PG for M14 help. M14 Doctor or Joesph at Dlask Arms are the closest to us (in B.C.) that will work on the Norinco plinko's. Good luck.
 
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