They are both 100% American as I understand... Shiloh are excellent rifles set up with their own match proven barrels and everything made in house... C Sharps are excellent rifles, set up with match proven Badger barrels and parts/accessories they don`t make are sourced from well respected manufacturers. You use to be able to buy [maybe still can] the '74 action from C Sharps, which lent it to be built by yourself or your favoured gunsmith. [Shiloh only sell complete rifles.] I wanted to go this route when building a rifle with Native Australian Timber stocks and an extra heavy Green Mountain barrel. Import restrictions tho not totally impossible, did prevented me from taking that path at the time. So I built a rifle locally... However I would still like to build a '74 myself, very much... The ideal situation would be to give them both a call and take a visit to their shops. I know people with rifles from either/both companies and they are extremely happy... So, I can`t see how you could go wrong with either manufacturer... 2 excellent products! Good luck!
cheers,
Cam....
ps: if you do have more than a few pennies saved, the Axtel '77 Sharps, now there's a nice rifle and none to common too!!!