It has always been my understanding that the coming of the new 1873 Colt revolver rendered the conversions which the Cav were carrying as surplus, and that these conversion revolvers were sold to any of the men carrying them who wanted the things.
Colt's 1873 revolver Number 8048 was in my possession for some time, in our family for the past 50 years. It has definitely been ID'd as an LBH gun, tracked to Company by serial. It came from a Sioux reservation in Canada, along with a second revolver. The Colt was in pretty rough condition, although restorable. Interesting, though, it had had the grip and triggerguard replaced with "US"-stamped parts from an 1860. This would make sense, as many of the old-timers felt that brass was "warmer" to hold in the cold weather.
I still have the second revolver, a conversion to cartridge from an 1858 Remington, 1863 manufacture. It is in NRA Ugly condition although the bore is not bad. Despite the fact that these were converted about 1868, the Registry insists that it is a .44-40..... even though .44-40 rounds do not fit into the cylinder.... and that it makes no sense at all for an army to convert its arms to handle a cartridge that won't be invented for another 5 years. Actual calibre likely is the original 44/100 Colt; it needs a straight case and a heel bullet to work properly. Still, it's an interesting old thing to have.
I have also run into an LBH Springfield Carbine, definitely an Indian gun for some time. The rear sight, interestingly, had been smashed off the rifle. I am told by a good friend (a direct descendant of High Eagle) that this was standard among the Indians at that time ecause they didn't use the rear sight and found it just another Wasicu nuisance. They hunted with these guns, using them like a big pistol as they rode alongside the buffalo they had picked.
Bumper sticker on a Cadillac at the Canupawakpa Wacipe (Pow-wow): "Custer had it coming!"
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