I got my carrier, but I ain't got a rifle to put it in yet!
The carrier is beautiful, and the little ingenious design change seems perfect for keeping things simple.
In my e-mail correspondence with Adirondack, he suggested measuring your loaded 44 Henry CFs (44 Russians) and matching up the OAL to the carrier's spring-loaded stop. My 44 Henry CFs (44 Russians) are loaded with 210gr MAVDutchman (predecessor of the Big-Lube boolits) RNFP bullets (more flat-nosed than most original Henry cartridges I've seen, but at least the powder charge and bullet weight are right on the money!) are about .020" too long for the 45 Cowboy location of the stop. The simple fix Adirondack suggested was taking the new stop out of the carrier, carefully stoning .020" (or so) off, and then reassembling and checking function. Looks and sounds easy, but I'm waiting to see how the carrier fits the rifle and ammo first, before I start taking off metal.
If anyone knows of a 44 Special 1866 Carbine or Short Rifle/Border Special out there in used shape available for sale, PLEASE let me know, pards!!