Posted: 12/9/2008 8:10:22 AM EDT
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I put one of your improved triggers in my AR a few years ago and started having light strikes recently. Thought maybe the hammer spring was getting weak so I installed a new wolf spring (don't know if thats a good idea or not). I think this happened after I installed a new barrel last summer. Do you think this is a trigger problem, a spring problem or a headspace problem?
Here is a link to my thread in the troubleshooting section. I don't have a set of headspace gauges so I didn't check. Just a guess but I thought that if the headspace was bad I would get ruptured or damaged cases? |
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Quoted:
I would try a new FP. Also, check for disconnector for engagement/operation (function check) to make sure it's not a hammer follow. If the hammer is cocking and falling then i doubt it's the trigger. Let us know.  Hammer only falls when the trigger is pulled  I tried two new firing pins, no luck. Is headspace a possibility? Or maybe the BC?
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Headspace is possible, but unlikely. It would have to be out something feirce to cause this trouble. If the round does not go off, have you checked to make sure there actually is a light strike? (Note, slight dimple in a primer loaded by firing action is normal, and is cause by floating FP). If there is a good dent in the primer, i would suspect ammo batch. Could have loose debris in the FP channel. Keep after it.
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Quoted:
Headspace is possible, but unlikely. It would have to be out something feirce to cause this trouble. If the round does not go off, have you checked to make sure there actually is a light strike? (Note, slight dimple in a primer loaded by firing action is normal, and is cause by floating FP). If there is a good dent in the primer, i would suspect ammo batch. Could have loose debris in the FP channel. Keep after it. Thanks for the help! Yep, light strike on the primer everytime. Debris in the channel is a possibility. Thought of that the second or third time this happened and it started happening after a KNS firing pin retaining pin went tits up...shattered actually. I cleaned the BCG really well, hosed it out with brake cleaner, than dried it out with the compressor. It seemed a bit better after that but still does it. As far as ammo, its happened with three or four types so I don't think its ammo related. Hmm, the first time this happened was right after the KNS pin shattered. I kept getting light strikes so I pulled the BCG apart and found that the fp was barely being retained by what was left of the fp retaining pin. There was a chunk of the fp retaining pin embedded in the back of a primer. I replaced the fp retaining pin and the fp, cleaned the shit out of the BCG. I just don't get why its still happening. I think I found all the little pieces of the fp retaining pin and I cleaned out everything anally. Even pulled the hammer/trigger out to make sure there were no pieces stuck in the lower. When that didn't work I changed the hammer spring to a wolf extra power spring, just to try. I don't know if thats recommended with RRA NM triggers. If there is anything else you can think of please let me know. There is two weeks left of elk season and I'd really like to use this rifle! eta: the dimple on the primer is light, could be caused by the floating fp. The hammer is definitely falling when I pull the trigger. |
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Just a thought on this. It could be that the bolt was damaged when the RP went south. A piece of it could have gotten into the inside of the bolt and the hammering action deformed the inside of the bolt. Try swapping out a bolt and see if that corrrects the issue. CHeck HS again as well.
JMHO Tread |
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Quoted:
Just a thought on this. It could be that the bolt was damaged when the RP went south. A piece of it could have gotten into the inside of the bolt and the hammering action deformed the inside of the bolt. Try swapping out a bolt and see if that corrrects the issue. CHeck HS again as well. JMHO Tread tried that last night, 60 rounds of wolf no problems
Shooting a suppressed rifle at night is fun! |