SGAMMO has some of the below listed Winchester 230 grain ammo for sale... about .46 cents per round... Not the best, but in stock.... Good luck!!!!
http://www.sgammo.com/product/winchester/500-round-case-45-auto-acp-winchester-230-grain-fmj-ammo-q4170
http://www.sgammo.com/product/winchester/500-round-case-45-auto-acp-winchester-230-grain-fmj-ammo-q4170