In my younger days the talk with the 270 was to fill it all the way up with H-4831, give it a bit of a shake and stick a 130 gr bullet on that to be good to go.
That was well before RL 22 etc.
H-4831 is still an excellent powder for it, regardless of bullet weight.
I do like Ball powders, W-760 and H-414 come to mind for the 130 gr bullets