01-04-2022, 02:47 PM
A quality barrel will answer 99.99% of any headspace questions, that plus a bolt with the 0.136" face depth. There are some mostly earlier models of 6.5 Grendel that are set up for a 0.125" face depth but I have not heard of any 6Arc ones like that. I would measure the face depth of that grendel hunter bolt.
Cmmg, Faxon, the Monster ones on here... all of the 6Arc barrels I've seen (and I have 3 myself) have all been fine. If you want to satisfy your itch sure, go ahead and do the head spacing, provided you have some 6Arc go/no-go gauges.
My opinion, your time is better spent making sure the barrel/upper assembly fit is square and snug.
Take your time building, doing the build is half the fun.
After assembled you will want to use a headspace comparator and measure the COAL and seating depth for the bullets you have. Not all of them will spec out/default to a 2.260" OAL - that is an important thing to do.
Cmmg, Faxon, the Monster ones on here... all of the 6Arc barrels I've seen (and I have 3 myself) have all been fine. If you want to satisfy your itch sure, go ahead and do the head spacing, provided you have some 6Arc go/no-go gauges.
My opinion, your time is better spent making sure the barrel/upper assembly fit is square and snug.
Take your time building, doing the build is half the fun.
After assembled you will want to use a headspace comparator and measure the COAL and seating depth for the bullets you have. Not all of them will spec out/default to a 2.260" OAL - that is an important thing to do.