I just wanna say that 240gr LSWC + Trail Boss is the bee's knees for low-pressure, low-drama big-bore .44mag fun.
Right now, my preferred load is a 240gr LSWC from Rucker in Terrell, Texas, over 7.3gr of TB, which is a max load. Fills the case completely under the slug.
Out of my 4" SW629 or my wife's Rossi 92, it is slick, clean, mild, shooting goodness.