I use a Model 110 Savage and a Mod- 12 FVSS and a Mod-12 FV Oh and my new Mod 116 Bear Hunter in 338 Win Mag. The 110 is a .223 and the 12's are .308 have used all of them out to and past a 1000 yards. It just takes time and patience to learn how to read the wind and know how far MOA's are compared to Mils. But when your done you will really enjoy going out and doing it.
Maricopa Shooting Service
S.W.A.T. South West Airsoft Tactical
NRA Certified Instructor