10-05-2015, 12:53 AM
Here is a segment of an article I have saved that I found when I first started researching the Grendel:
They also have a tighter barrel extension fit because the Grendels heavier recoil explores all the loose spots, and the barrel will settle in a different position each time if given the room.
Wandering groups in well-worn test rifles also taught Alexander that he needed to bed the barrels and gas blocks. Under a microscope, the surface of anodized metal looks like a forest of microscopic Christmas trees. Over time, those Christmas trees lose their tops and the rifles groups open up. Alexander beds the barrels with 2440 Locktite, which fills in the gaps but allows the barrel to be removed with standard tools. The gas block is seldom a problem, but has bounced loose on a couple of rifles. Alexander doesnt take any chances and beds both parts on all his rifles.+
Hope this helps.
They also have a tighter barrel extension fit because the Grendels heavier recoil explores all the loose spots, and the barrel will settle in a different position each time if given the room.
Wandering groups in well-worn test rifles also taught Alexander that he needed to bed the barrels and gas blocks. Under a microscope, the surface of anodized metal looks like a forest of microscopic Christmas trees. Over time, those Christmas trees lose their tops and the rifles groups open up. Alexander beds the barrels with 2440 Locktite, which fills in the gaps but allows the barrel to be removed with standard tools. The gas block is seldom a problem, but has bounced loose on a couple of rifles. Alexander doesnt take any chances and beds both parts on all his rifles.+
Hope this helps.