I bought mine from them several years ago when almost everything on the Starline site was on back order. You would place your order and when they got enough orders to justify it, they would make a run of brass. They just couldn't make the stuff fast enough. In the case of something as popular (NOT) as .45AR it took a little time for that to happen. The last year or two they appear to have caught up, the only out of stock brass I see on their site now is one they're not taking any back orders on.