I found the answer in Frank de Haas book on Single Shot Rifle Actions pages 12-14 in case anyone else is curious.

https://ia600909.us.archive.org/20/items/FrankDeHaasMrSingleShotsGunsIdeaBook/Frank%20de%20Haas%20-%20Mr%20Single%20Shot%27s%20Guns%20Idea%20Book.pdf

Thanks again Brent. Good suggestions to compare.

w