You jokers got me going again. I ran out to the shop and dug those barrels out of mothballs to get a look at them again. As usual, my memory, my once trusted bestest friend ever, is screwing with me again. They are a .50, a .50 and a .54, otherwise they are as I reported them.
Bachelor #1 is a .50 caliber 15/16" barrel right off a Thompson Center Hawken as they came out. It has the best bore of the bunch, I think a long evening spent with toothpaste and a soft brass brush would have a shootable shine on the bore with enough elbow grease. It has no breechplug, so impossible to tell if it was flint or percussion, the rib is present with one thimble, the ramrod retaining spring, and all the screws, but one screw is doctored. I do not have a .50 caliber minie mold, but such a bullet should shoot like gangbusters in the 1-48 twist shallow grooves. The barrel has merit for a 28" hunting rifle build.
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Bachelor #2 is also a .50 caliber 15/16" barrel right off a Thompson Center Hawken as they came out. It has a somewhat rougher bore, I do not think toothpaste is going to bring this one back, but perhaps a fire lapping session might. I also has no breechplug, impossible to tell if it was flint or percussion, the rib is present with the ramrod retaining spring, the thimbles and screws are missing, one barrel underlug is present. Somebody cut a dovetail for a rear sight through the front rear sight screw hole, but not TOO deep and wide, a clean up on the dovetail for a nice sight, plug the first hole, and good to go. This barrel also has merit for a 28" hunting rifle build, but more work would be required to bring it back.
And Bachelor #3. This is a Green Mountain (unless somebody else made them) unmarked near as I can tell, .54 caliber round ball drop in barrel for a TC Hawken, 32 inches long rifled for round ball, with the front sight remaining (rough). The bore condition I would call freckled. It has bright areas, and it has light pitted areas. I think it a perfect candidate for a freshening to about .55 to 56 caliber. Also 15/16 (drat!). TC always put the flintlock flash hole through the breech plug on flintlock models to preserve the patent breech, I see nothing really wrong with that idea other than the resulting longer flash channel, and absolutely not original, at least until Joe Manton, Durs Egg, and others started fine tuning the double barrel flintlock shotguns. A proper aperture shaped touch hole liner would fix any lags in the ignition I would think, same as it did in the shotguns. This barrel could be freshed out, fitted with a longer patent plug to get the prerequisite 33" barrel, a few rib holes TIGed up, slightly swamped and could be turned into a likely candidate for my build.