02-01-2022, 04:34 AM
(This post was last modified: 02-01-2022, 04:36 AM by r.tenorio671.)
...FWIW, after initial firing of my gasser build (approximately 50 rounds) , a thorough inspection of my Ballistic Advantage BCG showed NIL wear of any kind. I have no idea if Aero/BA is manufacturing their BCG's or OEM sourcing from another. I paid particular attention to the backside of the bolt lugs after popgun's post of the peening he experienced. I typically lightly lube the backside of the bolt lugs, especially for a new builds 1st outing so that may (or may not) mitigate that problem. Old habit from my Army armorer training.
...Being new to the Grendel/6ARC space, I was curious about the thin walls of the bolt face, so again that was closely inspected. All was good to go at this point. I was impressed at how easily the nitrided BCG & bolt wiped clean after sitting for 3 days post range session, very impressive, its my 1st nitrided BCG.
...one thing I noted during the 1st 5 rounds I fired, I did so with the SLR AGB completely closed and manual extraction took some effort. Those casings should be as close to an exact conformance to my chamber so I can record measurements for future fine tuning of my dies (converted Starline 6.5G brass). Manual extractions were normal as I opened up to final full functioning setting @ approx 3:30/4:00 ejection pattern, which I prefer.
...I did not have a muzzle device installed during that outing, just a thread protector, was curious to see how much recoil & jump would be encountered. Felt recoil was negligible, but there was enough movement to disturb sight picture thru the scope. I'm going to put a spare 6.5 VG6 Gamma on for the next outing to gauge the difference.
...Being new to the Grendel/6ARC space, I was curious about the thin walls of the bolt face, so again that was closely inspected. All was good to go at this point. I was impressed at how easily the nitrided BCG & bolt wiped clean after sitting for 3 days post range session, very impressive, its my 1st nitrided BCG.
...one thing I noted during the 1st 5 rounds I fired, I did so with the SLR AGB completely closed and manual extraction took some effort. Those casings should be as close to an exact conformance to my chamber so I can record measurements for future fine tuning of my dies (converted Starline 6.5G brass). Manual extractions were normal as I opened up to final full functioning setting @ approx 3:30/4:00 ejection pattern, which I prefer.
...I did not have a muzzle device installed during that outing, just a thread protector, was curious to see how much recoil & jump would be encountered. Felt recoil was negligible, but there was enough movement to disturb sight picture thru the scope. I'm going to put a spare 6.5 VG6 Gamma on for the next outing to gauge the difference.