I have tried it in my 270 wsm, Ramshot magnum was my go to powder with 150 gr bullets, was getting about 3000 fps but I would lose about a 100 fps when the temp got below 60 degrees.
Rifle: Win model 70, 24 inch bbl
56.5 gr 150 gr Barmes X bullet, 2925 fps 1 in group
59 gr 150 gr nosler partition, 2970 fps .569 inch group
63.2 gr 130 barnes xlc, 3220 fps, 1 1/16 inch group
I used winchester mag primers for all loads
