Savage 99f questions

MW65

Wetside, Oregon
My son has an early 50's EG in 300 Savage with an old K4 Weaver on it. Never done a full workup on it, but it shoots about 1.25" at 100 with 165 B Tips and he's taken a couple does with it. Need to work with some 150s and get it in the rotation again. He's just got too many nice rifles to choose from including two Classic Select Kimbers with wood worthy of a near museum piece.
Tried some 150gr corelok over some Rel 15... I was impressed! Nice tight clusters, and I think I found my jacketed hunting load. Now to refine the cast load. :)