My buddy and I use to shoot Winchester Supreme Accubonds in 180gr till I started to reload for our Sako m75SS 300WM rifles with Leupold scopes. The new Winchester Supreme Elites XP3's in 180gr would be another or Federal ammo in 180gr Accubonds or TSX. Nosler has the new E-tips that should be out in Winchester Supreme ammo is another.
I personallly love my Accubonds and the performance on Big Game. I traded all my new bullets for reloads in 180 gr TSX in 30 caliber and 140gr TSX in 270cal for my 270WSM for more AB's in the same calibers.
Sounds like you have a great rifle setup.