finding powder is tough right now but its better to hunt down a more task friendly powder than to burn powder that can be less ideal.
Trailboss has been on the shelves locally up until my last visit a few weeks ago. works for fun target loads.
2400 works well with my 314299 as does 5744 and H4895. IMR 4198 was recommended to me but I have since sold my 54r rifles.
For target shooting I have found 1600-1850 fps about the tops for 200 yards. 3 different bullet styles and 4 powders found accuracy to flounder past 1900 fps.