Vanniek71

I checked mine out as well, I was worried about that, it looks fine and shoots well, so time to grip it and rip it lol

I think my issue is finally fixed. I tried a CMMG firing pin and ran 210 rounds through my gun. Primers all look great and the pin has 0 chewed up issues like the previous pins. CMMG pin which has more rounds on it than all my other pins Other pins both with less than 200 rounds on them For whatever reason this CMMG pin works better with my bolt.

What bolt do you have?

Who is Max? (Kidding)

What pin did you go with? I just ordered some CMMG pins to try on the recommendation of another board member

I have the same issue, just came across this thread and this is exactly whats happening to mine too. I have had 2 of the older style pins and one of the large head pins end up looking like the OP's. I will say the older style weren't as bad but still somewhat chewed up. Its concerning as I have about 600-1k on my rifle is all. L9X25 let me know what was going on in another thread I created on the same subject. I am going to try a different pin that someone recommended to me before I just switch to a different bolt all together.

I thought of that but was lazy at the last match and didn’t pick any brass up lol

If it’s the firing pin channel would allow more wiggle, if it’s the firing pin hole, can allow primer to push back in to hole under pressure and possibly damage pin, or if a primer is pierced blowback getting in to the hole can damage as well

I think I may have an enlarged hole or something as well, the conventional design pins were doing the same thing on me. It was recommended that I try a CMMG pin, so going to do that before I give up. But I may have to send this bolt back and try something else

So its dremel and straight edge time is what you are saying? LOL ( I don't have a mill)

Here is what I see, on the fat head you can see it’s hitting towards bottom, so that’s correct. I guess my issue is why? It should be made so I don’t have to machine firing pins I would think lol

I've ran the older style pin and big head style (both pictured) the older style was less chewed up but still chewed up especially for 25- or so rounds. Ill take a look at the head of the pin and see if I can see anything but there may not be enough rounds on them to even determine that at this point.

Here is a pic of my firing pins, the one on the left (new style) has 130 rounds on it. The one on the right (old style) is about 250ish

Hey all, I am running the Taccom Extreme bolt and need some help if anyone has that bolt as well. I am having an issue with firing pins being chewed up (I've ran maybe 600-1000 rounds and have had 3 pins get chewed up at the tip) and read that the hole in the bolt face for the firing pin should generally be .058"-0.62". I Mic'd mine and its .072". The pins haven't broken and they still fire, but each one has had minimal rounds on it and its concerning what it will look like, or if it will even work after 1000 rounds. For example the last pin I put in new before a local match and it is by far the worst of the 3 after 130 rounds. Asking around I have heard changing the firing pins may stop the chewed up issue, but I wanted to verify that the firing pin hole in my bolt is OK as well. If anyone has this bolt could you take a measurement of the firing pin hole in the breech face and share what you have? More info: I talked to Tim from Taccom and he said his bolts tend to do that and it should be fine, and even offered a refund, so I am not bashing Tim or second guessing him, I just don't want this to be a bigger issue and cause a failure at a larger match. And if I can stop the pins from getting chewed up until 1000-2000 rounds that would be great lol

I have had 3 pins chewed up now since I built my PCC. I am using the Taccom Extreme bolt and the Hiperfir 24c 2#. First pin was the one that came with it, I contacted Taccom and Tim said it looked like blow back from the primers getting pierced. I also had an issue with my barrel that Tim fixed. He was nice enough to give me a new firing pin as well. Took it out and tested it, maybe ~150 rounds and the tip of that one was chewed up as well. I had purchased one of the new Taccom firing pins and put that in just this weekend before a Super Classifier match we had out here. The match was under 120 rounds. Just pulled that pin and the tip is all chewed up as well. My pins aren't breaking, just the tips are getting chewed up. I am wondering if Tim theory of pierced primers is right? Does anyone run small pistol primers for their PCC ammo? I will say I have been running my pistol ammo which has Federal primers, so maybe that is part of the issue? All I know is I am not going to keep stuffing $20 firing pins in my PCC every time I shoot a club match, and 2-3 at a major match....