Yes, you may want to try RL 17.
It is THE powder in my 7x57 Remington Classic [22" tube]
The throat is long enough in this rifle that I can seat bullets well out.
3004 fps average with the 140 Accubond and very, very accurate.
If I do my part, three shots often touch one another.
I will not mention the charge, since it is irrelevant for the 7-08.
Regards, Eagleye.