Dale,

The only marking on this rifle is a small, neat stamping of "ADCOCK" on the top barrel flat.  Tried googling the name and I am pretty sure the maker would have been "Mike Adcock", based on this online listing of muzzleloaders for sale privately a few years ago - https://www.calguns.net/calgunforum/showthread.php?t=984334

The one this chap had for sale, that he says was built by "Mike Adcock", is very similar to mine (i.e .62 cal, percussion, 34" barrel 1⅛" or more across the flats) although the tiger-stripe maple is lighter toned, the lock & barrel-key escutcheons appear not to be browned, the barrel marking sounds a bit different, and the cheekpiece inlay is different.

(I wonder if you maybe should contact this chap ... the original listing was in late 2014, but there is no indication of any sales, and his last "bump" of the post was as late as early 2016.  Possibility he might still have them ... or some of them  ... and after a while he was asking for offers ...)

I'll second the Ballistol. Squirt the stuff down into the bore, let it set for a minute or two, flush out with hot water from the tap, and follow up with a couple passes of a bore snake. Works on both black and smokeless.

I'm scared what this Goex shutting down is going to do to prices in the future.

From the beginning of this debacle I was wondering how the manufacturor is going to handle the commitments to the US military that they are on the line  for….
I have been trying to chase down any facts and am coming up completely empty.

Yhs prf marbles

John,

What's left of a can of Black-MZ has been the only way I can get off 5 rounds through this thing and still produce some smoke.  It isn't nearly as satisfying as the real thing however.  Maybe I should sell it to one of these people who think shooting smokeless through an 1875 designed piece is fine.  (grumble grouse)

Dave

Ah My Good Dave!
Under any normal circumstances I would be all over that, offering to buy it from you in a shot, except that I am now in negotiations for a complete HVAC overhaul/replacement to include whole house refridgersted air due to our numerous allergies! All disposable funds are locked up whilst we await the bad news….

If you are serious about seling .it off and can wait until agter the first of the year I would seriously be interested…

 Damn this ipad, now it is misspelling stuff on its own!

Yhs
Prof marbles

Me, too.  Do you think that in 50 years there will be reunion tours of the old rappers?