Hi guys, greetings from New Zealand. I am travelling to Texas to attend a 3 day school. I am able to borrow a .308 Win to use I just have to supply my own ammo about 450 rounds. So the question is not having shot any 308, my rifles at home are a 6.5x47, 7mm Mag and 338 Lapua what should I buy? We will probably shoot out to around a mile. I don't need the most amazing ammo out there I am not the most amazing shooter. I will probably purchase on line and have them ship it to the school way ahead of time to make sure there is no last minute dramas. Or is it likely there is a retailer in the Amarillo area that would hold that quantity in stock, at a good price. Can a non resident even purchase ammo? Your help would be appreciated.