AK, can you price it out at some stores? Maybe they won't gouge you too bad. Shipping sure would be a pain considering I don't know if you can order directly from the US anyway. Some places will allow it some places won't I think.
Anyway, check the gunshop or wherever you buy your ammo. I can get Fed GMM in mine, and its pricey, but thats what I got. Maybe they can get me Black Hills too.