All I know is since 2016, 10mm was and has been about the same price (ONLINE) as .45acp. I know this cause the price point determined a lot of factors.How so? Any time I ever saw 10mm it was a few bucks more per box than 9mm... Now that everyone is stockpiling 9mm, .45 and .223, those prices have doubled and tripled at many places(but not all)... But how many people are running out and buying 10mm guns or ammo?