Quote:
Originally Posted by CHAUKA
That sounds very...very Bad!  would engauging [sic] the safety stop that? |
Attempting to use the safety may hasten a discharge if the threads were marginal.
The firing pin is under spring pressure forward, and the cocking piece holds it back. The firing pin screws into the cocking piece and the trigger fires by releasing the cocking piece. If the cocking piece separates from the firing pin, the firing pin will fly forward without warning. Thus, the trigger cannot control the firing pin.
To engage the safety the cocking piece must be pulled back further than the trigger normally holds it. This would momentarily increase the spring pressure on the firing pin beyond the pressure it’s under when ready to fire.
To keep this in perspective, I’ve only seen this once out of hundreds of Mosins, but that’s all it took for me.
I suggest replacing both if you suspect this condition, and condemning the old parts. Better yet, destroy the old parts.
Quote:
Originally Posted by Steve in PA
The idea or reason for checking is because the bolts usually aren't original to the rifle, therefore the headspace might be off.
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Steve: afterthought -- this would be valid statement with a Mauser-type rifle that uses a one piece bolt.