With a rifle, you may need to slightly exceed published data to maintain obturation of the brass till the bullet exits the bore.
I have a Win M94 "Legacy" .45colt. I use 8.2gr of either Universal or Win231 and 255gr cast rfn. At 7.6, I get sooted cases and whiffs of combustion gasses in my face.
On the high end, the "Ruger" or strong action loads are a good maximum.
My rifle embarrasses bolt actions with 250 gr Hornady 250 gr XTP over 20.0 gr of #2400. This is a Nosler published max and most accurate load.