Black powder or equivilent

[Smokeless Coal]

I know I may seem to be pushing this stuff but trust me it is very clean to use

http://www.hodgdon.com/tripleseven/loadnote.php

Usable in cartridges too.

Shot my revolver last tuesday, just got it out the safe today to clean it ready for next tuesday. Yep five days after firing, no corrosion, no thick goo just a very fine white dust. Two strokes with a nylon bristled brush, bronze brush over the nipples, thats it done. I shoot 18 or 24 shots a week with a quick run the brush through after every 6. Not even oiling it, I would not oil my 357 underlever every week same goes for my m/l.
I'm not using trex or bore butter either, I coat my slugs with alox as a batch after casting, 200 in a tub, thats it done. They dry with a coating like a varnish.

I can understand that some insist on using BP, but it you go the smokeless route it seems crazy to me to use anything other than 777.

You have to accept that most m/l revolver users are doing so because what pistol shooting we can do is restricted. It can be the cheapest alternative so is available to more. What seems to put people off is the mess, the smell, the powder licensing and handling loose powder. 777 can eliminate the first three. The powder is dangerous, it would be wrong to suggest otherwise but we learn safe handling of guns and ammo and powder handling is just another safe use regime to learn.
They ain't accurate, another misconception, I know people who can shoot cloverleafs with these things. It takes practice and experimentation, perhaps more than buying the best shop brought cartridges but a craftsmen does not blame the tools.
My own shooting is rubbish, knackered eyes means my normal with any gun over open sights is 3" groups at 25m. My best with my m/l was a couple of 5" but mostly 8" is where I'm at.