12-25-2018, 10:50 PM
I did put some Kroil over the set screw, still frozen in, not buggered up to much. My plan is to acquire a better tool/bit tomorrow.
The gas adjustment screw is out about 1 to 1.5 threads, backed out of the block. Of course the set screw has it locked in this position.
I took the bolt all apart, the bolt does seem rather stiff inside the bolt carrier. I cleaned everything and used a bit of slippery lube.
These rounds tested were the very 1st rounds for this upper, maybe 20-25 so far. My 2nd test went much better. Can I attribute some of this to ‘break in’? That may be more wishful thinking. Again it shot rather well, though I was mostly testing function. I have a 6.5-20 prairie dogging scope mounted.
My main goal is to free up the set screw. If that happens I will check where the gas screw is adjusted to, then more shooting.
The gas adjustment screw is out about 1 to 1.5 threads, backed out of the block. Of course the set screw has it locked in this position.
I took the bolt all apart, the bolt does seem rather stiff inside the bolt carrier. I cleaned everything and used a bit of slippery lube.
These rounds tested were the very 1st rounds for this upper, maybe 20-25 so far. My 2nd test went much better. Can I attribute some of this to ‘break in’? That may be more wishful thinking. Again it shot rather well, though I was mostly testing function. I have a 6.5-20 prairie dogging scope mounted.
My main goal is to free up the set screw. If that happens I will check where the gas screw is adjusted to, then more shooting.