02-04-2018, 01:08 PM
Those uppers/barrels were for sale when I started researching the 6.5 Grendel in 2008-2009. I think AA had the 14.5” uppers on the market through 2012. The Hornady reloading data in the 9th edition used the AA 14.5” barrel but is listed at 16”. I think I bought my 9th Edition manual in 2013 IIRC.
I wouldn’t be concerned about a AA barrel and the twist was 1:7.5 and is the same chamber as the current SAAMI spec with .136 bolt.
I wouldn’t be concerned about a AA barrel and the twist was 1:7.5 and is the same chamber as the current SAAMI spec with .136 bolt.