Re: Bad firing pin or bad bullet??
Everything LB is certainly correct, another possibility is that something is rubbing the striker as it is released.
A primer need a certain amount of penetration from the firing pin to cause the priming compound to ignite.
Just as important as penetration is velocity of the impact. One can take a primer in a vice and crush it slowly and it will never explode. Onthe other end, tap one on a concrete floor quickly with a light hammer and they will fire easily.
"DO NOT TRY EITHER OF THESE BECAUSE IT IS DANGEROUS TO DO SO!!!"
My point is that even though you getting a noticable amount of firing pin penetration in the primer cup, if something is slowing the firing pin, it may not be striking the primer with enough velocity to set off the priming compound.
You said that the rifle fired after the safety was switched on and then off. This is where I would start after the bolt as been cleaned free of any lube, inside and out, mainly inside and the firing pin protrusion measured tomake sure it is adiquate.
If the safety mechanism is catching the striker some as it falls and slows it down this could certainly be the problem.
I also agree with LB, take it to your local smith and let them get this fixed, there is nothing harder to shoot or more unsafe then a rifle that you do not know when it will or won't fire.
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