I think, and I am unanimous, it should be a US Krag award just because this is America.  Sure you can use a foreign Krag in the Vintage match but how would you tell after the fact?  The list for the Roosevelt (spit) match has two options, Krag or 1903.  Vintage on the other hand, as of today, does not show the type of rifle used by the shooters in the match.  I  looked in the National Vintage Military Rifle Match results.

By the way, madsenshooter, you blab here, you're a member here.   :D