I have a Savage F-TR in .223 with a 30" barrel- 1:7 twist.
Shooting pals have your rifle and hand load. I see them and their targets pretty much every weekend at the range.

You best bullet is probably going to be a 69 grain Sierra Match King.
Powder - and this form my rifle and others- Varget is very, very good and CFE 223 a close second. Varget will NOT meter well if you use a manual powder drop. The CFE meters very well.