I've ran 73gr eldm's with pretty good success. I also tried the 77TMK and was surprised it stabilized and shot well at 100 yards, but fell apart at the 400 yard range. Groups were extremely poor and bullets were obviously not stable. I wouldn't trust the 1 in 9 for shooting the 77's and heavier/longer pills... I've also had excellent luck with the 53gr v-max. 69gr sierra's work well near and far. My experience with the 1 in 9 ranges from the Ruger m77 mk2 varmint .223 and Ruger hawkeye .223 and also a Savage predator similar to the OP's. However, mine is the original predator. Not sure if the OP's is or not? My buddy has a new predator that does not shoot nearly as well as my old one..