01-27-2014, 01:30 AM
The dimensions that AA uses is .136" -.003" allowable, not any deeper than .136". What method did you use to measure your depth?
I use the slide from my calipers as a protrusion gauge. Some machinists could chime in with a better method, but this is what I have available, and gives me readings that make sense on both Grendel and 5.56 bolts:
I use the slide from my calipers as a protrusion gauge. Some machinists could chime in with a better method, but this is what I have available, and gives me readings that make sense on both Grendel and 5.56 bolts:
