The first site I checked wanted $45+ for shipping, which equated to $9 per 50 round box. Tax was yet to be calculated. I was already aware of what to expect, but considering it was a new site I hadn't visited and you offered your valuable time to direct me, it was worth due diligence.
I visited BP a few days this week, and this weekend with no 10mm ammunitionin stock. Also, when setting the store location locally the link shows not in stock. You may have your store set incorrectly as it showed a Maryland location when I clicked the link initially.