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Posted: 8/12/2013 8:31:35 PM EDT
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Do I need to be concerned about pieces of primers falling out of my bolt when I field strip? I have an MGI Enhanced 7.62x39 bolt and firing pin and shooting wolf ammo over the weekend.
http://i939.photobucket.com/albums/ad234/sgvangler/02b8f6c2-a72c-4c29-abf8-286ab276fa53.jpg |
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Quoted:
firing pin protruding too far? Or the point is rough or scored, or the combination of ammunition and barrel length is causing excessive pressure which is blowing primers. (Hand loads are not the only way to do this - OP, what is the barrel length and who made it?) OP, better pictures of the primer debris would help point out which of the numerous possible problems is going on. Are those bits really just fragments, or are they discs punched into the firing pin hole? |
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There is no way in the world for primers to stack in the firing pin hole if the firing pin hole is of proper size. It sounds to me like your bolt face has failed around the firing pin hole and the hole is now the size of the primers and the primers are being blown out of the case and into the bolt.
If those disks are just the size of the firing pin tip, that is still not a condition I would want to be shooting the rifle with. Either your firing pin or your bolt or both need to be replaced depending on what those pieces are. NO, that is not normal and NOT a safe condition. Your bolt and or firing pin needs to be replaced before you shoot it again but we really need a picture of the bolt face and close ups of the pieces, and the firing pin tip too if you can, to say for certain that what is the case. If I am right your rifle is downright dangerous to shoot in this condition. |
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Once you've pierced a primer, you'll likely pierce more and more of them. The tip of th efiring pin is essentially flame etched or even cut when it pierces th eprimer, which creates edges rather than radii, which in turn create a higher probability of piercing more primers, and so on.
Any number of reasons could have caused th efirst primer to pierce...doesn't really matter at this point. You really do need to replace the firing pin and potentially the bolt for your own safety. Don't forget to verify head space withthe new bolt and existing barrel extension before use. Steve/RRA |
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Looks like a large gap around the FP on the bolt face.
MGI uses a firing pin that is matched to the bolt with a larger diameter pin tip and a larger diameter hole to allow it to pass . This is supposed to improve reliability. I don't think you are using the correct MGI enhanced firing pin with the MGI enhanced bolt. As far as I know these can only be purchased from MGI . Be careful . |
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