Ive got a Geissele High Speed National Match-Match trigger in my 6.5 creedmoor built on Aero Precision M5 receiver set. The gun has an SLR adjustable gas port, JP lightweight carrier and JP silent captured spring.
The gun has 350-400 rounds through it before today. Never had an issue. I havent shot the gun in about a year due to no time to get to the long range.
Finally get some time to hit the range today. Shooting off a bench, not prone.
Rounds 1, 2, and 3 fire normally. Rounds 4-5 doubled. I cant say if the hammer was reset after this as I only had 5 rounds in the mag.
I broke the gun down, tested the trigger and everything held like it should(sear and disconnector wise) as far as I could tell. I did not bump the stock on the ground and see if it slipped off of anything.
Put a little oil on the trigger and hammer pins and put the gun back together.
Put 5 rounds in the mag, the gun doubled 1&2, fed 3 and stopped. Again, I am not sure if the hammer reset after this event as I cleared and put the gun away.
I am not 100% sure that I didnt bump firing the gun, but I would have GUESSED that I would have bump fired more than 2, I dont know, ive never purposely bump fired a gun before. I have shot this gun from the bench and from prone. Never had it double before. I feel that my trigger discipline when shooting precision is pretty decent. I do not reset the trigger until the gun settles down, I typically hold it to the rear. Thats why I lean away from this being a "bump fire" and more of a "the trigger setup isnt quite right" or "the disconnector isnt quite right" due to my holding of the trigger to the rear until the gun settles.
I am going to go through the trigger setup again to make sure I dont have the sear engagement to far out of whack and its barely holding on... Just weird to put 350-400 rounds through a gun and THEN it has issues, but I guess the sear face could be just now worn in enough that I need to re-do the setup procedure.
Anything else PHYSICALLY I should look for on this beyond following the Geissele directions on setting the two screws?
What say you, people who are WAY smarter on this platform than me?
ETA: just to be clear I am NOT blaming Geissele, their product, or anything about them. I have not contacted them and I dont think I will be until I can go back through the setup procedure and shoot the gun again. If it still does it at that point, I will be contacting them to get their take on it and to possibly send the trigger back.
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