I'm thrilled that guys are still answering!
I dug out my three original SMR's and measured the barrels and compared them to the modern offerings. All the modern barrels have much more swamp, or thinner waist, than the originals do. One of my guns, that ebay one that was sold in pieces, holds very nicely, weighs about 8 pounds and has a pleasing look to the barrel, at least to me. So I think I'll use those dimensions more or less for my barrel. That gun is .34 cal, and has a 41" long barrel, but I want to stretch it out a bit longer to about 46", and .32 caliber.
So where to get the barrel? I know Ed Rayl can make a custom contour, but does anyone else do that type of work?
Also, I realize most of these rifles were percussion, but I'd like to build a flint. I have a lock, a late Ketland with the straight tail that I bought from TOW for some reason. Anything good, or not so good to say about this lock? I seen pictures of a few SMR's with flat tailed locks, so guess the style would work okay?
Thanks for any help you can give me here, John