I have an 'Iron' framed Henry in .44-40 and I'm here to tell you, keeping the loads in the black powder power level does not in any way detract from the shooting fun of these guns! They are accurate and if'n I was to find myself in the presence of a wild hog or deer out to 50 yards, I'd feel well armed. My load fires a 210 grain cast bullet at 1200fps and it slams the steel plates off the pedestal with enough authority to suggest we aren't losing anything in the long run.
Dan
The "old" BP .44 WCF AKA .44-40 has put more venison on the table than any "moderen" rifle even the 30-30. and it has only come back to partial notice in the last thirty years or so.