Figured I’d start a thread for the 6mm ARC. Here’s what I have for now.
26” McGowan 1:7” 0.086” gas port, Odinworks adjustable gas block, JP BCG
Using 0.350” insert
Hornady comparator’s headspace 1.183”
Sized 6.5 Grendel Virgin Starline brass headspace 1.187”
Fired cases headspace 1.191”...