I have an early 50’s Savage 99 in 250 Savage that my Dad had drilled and tapped for a Unertl 4x Hawk scope by Flaig’s Guns in 1960. He reports having used both 100 gr Winchester and Remington factory loads successfully, and I’d like to deer hunt with it this year. I have some 100 gr Sierra spire point flat base J bullets, and IMR 3031 and 4064. Don’t have a lot of time to experiment, can someone share a load or two they had some success with? I have a Hornady manual with data on both these powders, just looking for a recommendation. Perhaps next year I will try cast in it. Thanks.