Honestly the ammuniton for a Kalashnikov rifle isn't as easy to come by in the US as one might think. Also most of the ammo available I would
catergorize as third world surplus and not the best ammo available. Out of the rifles you listed I would go with the bushmaster. I would look into any
AR type rifle from any of the larger companies that sell AR's. I would look at one that has a piston upper. You can also buy a piston conversion kit
for almost any AR on the market. With a piston kit you get the reliabilty of an AK with the accuracy of an AR. AR's are pricey but 5.56(.223) is much
more widely available. Tons of aftermarket add-ons.
Another good option would be an M1 Garand. It's durable, accurate, and 30.06 is plentiful.



, along with everything else left with relatives in the U.S. The .223 round is flat and fast and recoil/recovery time is really very minimal.
Another consideration in favor of the Ruger is it's light weight. If you've ever packed a rifle for hours, the mini-14 is easy to heft and it
scabbards well if you're a horseman. 