My Remington 700 BDL in .243 Winchester loves 43 grs of IMR4350 under an obsolete Hornady 70 gr SXSP seated just a hair off the lands.
The rifles nickname is AT&T from back when their slogan was "reach out and touch someone". I've gotten 1/2" groups at 200 yards with this load from a bench, when I do my part.
I'm down to my last 100 of the 70 gr Hornady SXSP bullets and will probably move up to the 75 gr V-Max and start over with testing how many grains of powder the 75gr bullet likes.
Good luck.
E.