12-20-2014, 10:03 PM
When aligning gas blocks, I use the protrusion gauge at the end of the calipers inside the block to see where center of hole is.
Then I measure from the barrel shoulder to the gas port center. Most blocks need to be set off from the shoulder, while some will abut right up to the shoulder no problem.
Then I measure from the barrel shoulder to the gas port center. Most blocks need to be set off from the shoulder, while some will abut right up to the shoulder no problem.
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
