Belted 6 ARC issue
This video details the process of forming 6mm ARC brass from 6.5 Grendel brass, highlighting a peculiar 'belted' ring formation at the case head, potentially linked to over-pressure and the use of small base sizing dies. The instructor experiments with different dies and brass types, firing reloaded cartridges to observe and analyze these pressure signs, ultimately suggesting that avoiding high pressure is key to preventing this issue.











