Pierced Primer

[jmoore]

You may also want to flush out the bolt and give the bolt head an internal cleaning in case the biece of the primer blanked out is still in the works. That's likely what caused the misfire. It may also explain the inconsistant hits on the other primers.

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[killer_chicken]

You may also want to flush out the bolt and give the bolt head an internal cleaning in case the biece of the primer blanked out is still in the works. That's likely what caused the misfire. It may also explain the inconsistant hits on the other primers.

This is a good point too, I did take the bolt head off while at the range, but I wasn't looking for anything specific. I'll take a closer look, and flush it out, regardless.

[killer_chicken]

Although it appears a defective primer is most likely here, it wouldn't hurt to inspect and polish the firing pin tip - especially since the recent piercing event undoubtedly added a bit more roughness to the pin's surface texture.

As you can see below, my firing pin definitely needs some sandpaper treatment.

Check for the fit of the striker tip where it passes through the front of the bolt head. Any more than a couple of thou' can start problems, especially with "soft" or brittle primers.

Here is a photo of the firing pin protruding from the bolt head, I think it looks good, but I'm not sure what a "good" one looks like...

You may also want to flush out the bolt and give the bolt head an internal cleaning in case the biece of the primer blanked out is still in the works. That's likely what caused the misfire. It may also explain the inconsistant hits on the other primers.

When I took the bolt head off the bolt, I could see some brass looking material inside the bolt, on the piece that holds the firing pin inside. I also found a few flecks in the cone inside the bolt head, I carefully scraped it off and blew it out, and will rinse it out with some solvent.

Thanks for the info guys!