I have owned 4 in the past. RL25 was the powder of choice. H4831 was a close second.
Fotis, I got mine before these slower Rl powders were on the market.
JRS used IMR 4831 with good results. So I stocked up and have several #s. With the 200 gr bullets it gets 3100 fps w/o any problems.
That combo equals the trajectory of the 270 W using similar BC bullets.
I have a few #s of Rl 26, I might try a little of that.
Thnx
Jerry