IMHO... 375 Raptor...
https://www.375raptor.com/load-data/We have been doing load development for about 4-5 years now... Crazy Impressive stuff. Basically .35 Whelen performance on a .358W brass.
If you are not in a hurry... we are working on one now that should exceed the 375 Raptor... Calling it the 93Jimbo (tribute to a friend).
Norma 232 grain .366 bullets on readily available Starline .358W brass.
Going to try for 3,000 FPS, but doubt I will get quite that fast. Should remain MOA to 600 yards... should... based on lots of field work with the .375 Raptor.
Short Action and AR-10...
I might even do Garand... MAYBE.