Cabela's has always done me good, I got a $5 shipping for any purchase coupon that they had running. Ive shot plenty of brass target loads, mostly remington and since Ive shot 1k of Tula 223, steel-lacquer finished with no problems. I think they were $3.79 for a box of 20, it was like $209 shipped to my door for 1k rounds. I will be buying some more here to restock, much cheaper practice with than then brass stuff. I wouldnt trust my life with it of course so always have some decent Hornady TAP rounds loaded in a couple mags. Midway has always been good shipping, but look for deals
Also, Hornady is making the lacquer coated shells for there training rounds, can't be too terrible for the gun.
