I went back to the farm with a new lower and my recently updated upper and I am flustered beyond words.
I have tried the yellow JP spring kits and it seems I always get a 50% Failure to Fire rate with them, but with subsequent tries, they always seem to go bang. This new lower I put together with the same Spike's Enhanced LPK, trigger adjuster screw and the JP Enhanced Reliability spring kit. This morning, my failure to fire rate was approaching 80%. I literally fired 4rds before given up and no matter how many times they were re-chambered, they just wouldn't go bang.
The lower that I originally put together for this upper has the factory Spike's springs and when I went to the neighbors down the street, I was able to fire 10rds of the ones I had tried at the farm with out a hitch using the same upper as I did at the farm.
Federal/American Eagle Black box 55gr FMJ 100% FTF
Barnes Vor-Tex 55gr 4rds fired
I was under the impression the Enhanced Reliability kit was designed to prevent this. It is the Yellow/Red spring kit.
Any ideas other than the springs, I am all ears. The only difference between the two lowers, are the trigger springs.
I have tried the yellow JP spring kits and it seems I always get a 50% Failure to Fire rate with them, but with subsequent tries, they always seem to go bang. This new lower I put together with the same Spike's Enhanced LPK, trigger adjuster screw and the JP Enhanced Reliability spring kit. This morning, my failure to fire rate was approaching 80%. I literally fired 4rds before given up and no matter how many times they were re-chambered, they just wouldn't go bang.
The lower that I originally put together for this upper has the factory Spike's springs and when I went to the neighbors down the street, I was able to fire 10rds of the ones I had tried at the farm with out a hitch using the same upper as I did at the farm.
Federal/American Eagle Black box 55gr FMJ 100% FTF
Barnes Vor-Tex 55gr 4rds fired
I was under the impression the Enhanced Reliability kit was designed to prevent this. It is the Yellow/Red spring kit.
Any ideas other than the springs, I am all ears. The only difference between the two lowers, are the trigger springs.