This past season in Idaho I took a nice anuff 6x6 bull. I used a 300 Rem SAUM. 165gr factory load.
This next season I'll use a Tikka T3 SS Syn 300wsm with a handloaded 165gr Sierra HPBT GameKing at 3100fps.
That load shoots under 2inch groups at 300yds. I can live with that. Outlaw