Very hard to find. I wouldn't trust any site that doesn't take cc. Only buy from reputable sites or locally. I heard they are starting to make it again but that's all I heard. Good luck.
I heard that a Walmart in PA near the border with our lovely state, would not sell to NYorkers.
Best bet. Make your own. Start stockpiling cases, bullets, powder and primers.
Hornady 45 ACP 230 grain jacketed $25 per 100. Not loaded ammo PM me. Flat rate shipping $10. Local pickup available. 298 pieces available. Take all for $60.
Your best bet is Hessney Gun Auction. Drop it off and after, cash the check. They do take 13% but my local FFL takes 25%. Wide audience and they do all the work.