just bought a t.c. 54 cal scout pistol. i know these are finicky guns. would like some help on what powder to use, also thinking of using mmp white sabots with xtp 44 cal 180 grain bullet. any advice?
You should go join the Specialty Pistols forum. Lots of guys on there shoot the modern inline black powder pistols like the Scout, Encore, Knight, Kahnke, etc.
Will have to assume that you did not get a manual with this Scout. If so, you can go to their website and download a manual or phone them and they will send you one if they have it. There should be loading data in this manual and you may have to contact the manufacturer of the white-hots.