07-05-2012, 10:31 PM
Well Sneaky I installed the adjustable because at the time thats what everyone said to do. I thought about putting one on my 223 but it worked fine without it. Here is the quote from Bill Alexander "Within the Grendel models the only unit I would regard as over gassed is the 16" Tactical. The 10.5", 18" and 20" are slightly under while the 24" and 14.5" are about perfect. We are currently correcting the 16" with the removal of the 90 gr TNT ammunition and the replacement of the 100 Berger HPBT." Don't loose it this time Dan put it in a safe place.

