02-01-2014, 04:30 AM
I think your bolt and bcg may be the problem. From what I understand the face depth should be at .136 and if it isn't a bcg for a grendel the length of the bcg is a shorter length than a standard BC. And the extra length on your can cause the cratering you are seeing.
I'm no expert by any standard but if I'm wrong I'm sure I will be corrected shortly.
I'm no expert by any standard but if I'm wrong I'm sure I will be corrected shortly.

