Oldelm,
I've had McDowell's book since it first came out in 1997, and thats the information I used when doing these. The book also has several pages on the Rogers & Spencers. I've used the book to make a couple of 1860 Colt Richards, made the way they are supposed to be with the rear end of the cylinder under that little lip (.0310) on the recoil ring. I'm doing a 1860 first model richards for myself after I finish my son's pistol. I've already got the Cylinder and recoil ring made.
johnrtse,
Glad you like it, your pistol looks nice. I just wanted something a little more like Remington actually did them, but the Kirst stuff is great. I like the finish on our gun. The finsh on this pistol looks like the old style nickel plating they had in the 19th century. I was going to blue it, but I may leave it like it is. Using the birchwood Casey blue remover is the best way to go, you don't have to remove any metal and it is real easy to use. When I get the loading gate installed I'll post another pic, should have the ejector rod finished at that time too.
Bill