My pastor gave me a barrel from a GAU8, the Warthog Gatling, 30MM, gain twist, approximately 8ft lth. I plan to make him a muzzle loader of half of it so he will feel free of government intervention. The other half I hope to make into a breech loader utilizing the Krupp sliding breech. The main interest is in shooting, not in making a replica, but have heard that the BTAF will not trouble one who makes a replica type from before 1898 as long as it doesn't use fixed ammunition.
Question 1, How close to a pure replica does it have to be?
Question 2, What are the elements involved in avoiding BTAF interference? Do I have it essentially correct?
Question 3, There are many sources of info about post 1898 designs, but little between the war of Southern aggression (The South started that nasty war) and the first world war, can anyone point me to a source, book, DVD, or anything, for info of artillery designs from 1865-1898?
Thanks,
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