Mine liked a certain loading(Win 150), my buddies liked a different loading(REM 150), and another buddies shot real well with a totally different loading(Fed 165).
When we started reloading the whole Jeckle and Hyde thing was present too.
Incidentally what my rifle liked, shot like crap in my 2 buddies BLR’s. And their preferred loads both weren’t as well shooting in my BLR.
The message here is go shoot the damned rifle and find out what it likes…..
There’s no way of predicting which load a rifle likes, it has to be sleuthed out, by burning powder.