I am running an original M16 lower. It came as a burst from the factory but, has a Auto trigger. The BCG is a Y/M National Match M16. 30rd window Pmag. The upper is LMT MRP Gas with a 10.5in barrel.
I am running wolf .223 62gr FMJ. (Yes, dirty cheap ammo)
When running in FA randomly about once a clip it will stop firing. I typically try to only shoot ~3rounds by letting go of the trigger but, sometimes keep the trigger down to run out the mag.
When the gun stops firing I do not appear to have any jams. The bolt is closed and opens easily. When I pull the bolt back the round in the chamber is fully seated in the chamber and on the bolt. The round has a firing pin strike on the primer. The strike is deep enough in the primer that it is a defined circle with a little depth but the round did not fire.
I can take the rounds with the light primer strike and fire them in semi with no FTF. When I run in semi I do not get any FTF even if I pull the trigger as fast as I can. I tried multiple mags and meticulously cleaning the rifle same FTF in FA. When in FA it is never the 1st or 2nd round that is the FTF but any round after that appears to be possible anywhere from round 3 to round 30.
Unfortunately, I did not have another ammo to test with. But I would like to correct this issue so I can afford to still run in FA.
Any suggestions are greatly appreciated!
I am running wolf .223 62gr FMJ. (Yes, dirty cheap ammo)
When running in FA randomly about once a clip it will stop firing. I typically try to only shoot ~3rounds by letting go of the trigger but, sometimes keep the trigger down to run out the mag.
When the gun stops firing I do not appear to have any jams. The bolt is closed and opens easily. When I pull the bolt back the round in the chamber is fully seated in the chamber and on the bolt. The round has a firing pin strike on the primer. The strike is deep enough in the primer that it is a defined circle with a little depth but the round did not fire.
I can take the rounds with the light primer strike and fire them in semi with no FTF. When I run in semi I do not get any FTF even if I pull the trigger as fast as I can. I tried multiple mags and meticulously cleaning the rifle same FTF in FA. When in FA it is never the 1st or 2nd round that is the FTF but any round after that appears to be possible anywhere from round 3 to round 30.
Unfortunately, I did not have another ammo to test with. But I would like to correct this issue so I can afford to still run in FA.
Any suggestions are greatly appreciated!