US Revolver Co.

by Bob Hatfield , Wednesday, March 29, 2023, 10:38 (605 days ago) @ JimT
edited by Bob Hatfield, Wednesday, March 29, 2023, 10:41

The cylinder is bored straight through. The chambers measure a nominal .375 inch. So if I used a round ball of that size it would have to squeeze in a smaller bore.

I slugged the bore at .3575 inch. Try as I may without cheating, I couldn't make the Starrett electronic caliper go to .358 inch. So I was hoping it was 41 Colt also but from what I've been reading they were only made in 22, 32, 38.

The barrel was leaded up terrible, and it needed the Lewis Lead remover to scrape it out. Bore looks good as new now so it was probably not shot with black powder loads back in the day.

I removed the hammer and has three notches. One must be the notch for the double action lifter and the lower one must be the single action notch. It is worn shallow. I hope the middle notch wasn't a safety notch as it is worn hair thin. The single action will work occasionally, but sometimes it will fall on its own.

A file glides like glass across the hammer notches so it might be the sear worn. But it works A-0k in double action. I'm thinking about bobbing the hammer to keep someone from trying to cock it and it goes off inadvertently on them. The double action stacks nicely and one is able to stack it and fire it good.

So it looks like I'll have to use a hollow based wadcutter load and assume it will obturate and fit the cylinder as it exits the case. Looks like it needs a 38-colt bullet used for a different reason. Instead of expanding to fit the barrel it needs to expand to fit the non-existent throats......Dang I believe I'm over thinking this as usual.

Bob