Save those 85 Sierra's for serious shooting, Sierra discontinued that bullet. The 120 Sierra PH seems to shoot well with most loads out of the Grendel in my experience. It is a pretty good deer bullet also. The 120 Speer Gold Dot is an AWESOME deer bullet though and it shoots good also. Yep I am one of those with a BCA barrel. Had to send the first one back for replacement. It is a very picky barrel but I found loads with 120 Sierra PH and Speer GD that are sub MOA.