I am starting to load for and old M77 270 22" barrel. Trying 140gr accubond with either IMR 4831 or Imr 4350. Has anyone loaded these for hunting? What did you find best results with? Also a 308 ruger american predator with 165gr accubond 22" barrel. Powder I have is RL15 and IMR 4064. Thank you in advance.