Powders that have "worked" for me in the 270 Winchester have included 4064,4320,H4350,IMR4350,IMR4831,H4831(past and present iterations)7828,MagPro,RL22,and RL25.Might have used some Norma 205 and MRP in years past but it was long ago....anyway you can likely load a 270 Win with lumps of coal and it'll work.Not a very fussy cartridge IME.
Sometimes you just don't want to fiddle with stuff and a slam dunk load that you know is the way to go.....so,I loaded up 50 rounds the other day with the old standard of 61-H4831-130 Partitions,and got zeroed for hunting which took a grand total of 7 rounds so that's that.
