Bones,
I just work it into the patch for shooting sessions. Melting it won't work, as it has a percentage of water.
Old Hoss,
I can't help it if it works. It started working when I found it maybe 15 years ago. we slather it on pretty thick at times and it still works, and for a musket, we load with thick felt wad, a ball, a great dollop of U.Smoothe and another thick felt wad.
Afraid No crud rings as it has nothing in it in the way of petroleum chemicals. No I am Not saying it is the only thing to use, but found it was the One thing that made my converted .577" rifles shoot Consistently.
We have a "Something Challenge " at our annual shoot here on the farm. It is for guns we do not mention here, and my old gun has won it 5 times out of 8. and my eyes aren't a patch on what they were. Range is 150 yards, no rests but prone OK.
Mind, Now, Most everyone uses the same potion, LOL! We can check our barrels after 10 or 30 shots and still see rifling all the way down. Or more. I don't swab between shoots, and my rifle is most times used by five of us, and the targets are the B 17, and 13 shots, best ten for score, so it has a Lot of powder, (@ 70 grs a time) and lead through it with no washing out, and I often shoot it near the end.
It's not a miracle, as for hunting it would damp the powder in time, and maybe rust, just like spit will. For hunting I use deer tallow.
Like I said, it's not a miracle, but it does work.