02-17-2023, 02:50 AM
I also have an 18" RLGS and found that in the colder months, running 129 grain ABLR projectiles with AR Comp, I would intermittently experience a short stroke condition. I was also having the bent case mouth's, similar to what you have observed.
For me, after opening the adjustable gas block 1 turn, both issues went away. I also have been running the 90 TNT with 8208 powder with no observed issues even before adjusting the gas block.
It sounds like to me you have a good understanding of what is going on. Now just need to increase the gas and see if it corrects the issue.
For me, after opening the adjustable gas block 1 turn, both issues went away. I also have been running the 90 TNT with 8208 powder with no observed issues even before adjusting the gas block.
It sounds like to me you have a good understanding of what is going on. Now just need to increase the gas and see if it corrects the issue.