Get on Hodgdon web page and look under Trailboss powder.
I shoot a 250 grn xp bullet with their suggested starting load the report is mild and so is the recoil. I think once you try it you will use it in all your heavy kickers,I also use it in my contender rechamber 44 mag to 444 marlin on this I use a 240 grn xp bullet and the hogdon tec told me that with the starting load which is 13 grns of TB that out of a 14 inch barrel It should produce around 1200 fps. What I like about it is the mild report and the very mild recoil and does not produce a lot of preasure.
Deaconllb