Packed in 50 round white boxes. Academy price $49.99 with free shipping. Federal rebate is $20 per box, max of $100 rebates per address. It appears Federal only allows one box per order, so if buying more than one, submit separate orders.
Federal rebate found at: https://promotions.vistaoutdoor.com/EN/US/Home/Brand/68
ActiveJunky, BeFrugal, and Ebates offer additional cashback if you first go to their sites before ordering.