Never know what you're gonna get at Dick's. With an advertised 10% off on 10 boxes, it's not uncommon to get 20% off on 20 boxes, etc. I've never tried it only because they rarely have enough, but I think it's entirely possible that 100 boxes could get you 100% off.
That $4.49 a box (10 boxes or more) for "AA or STS Premier Target Loads" deal a couple of years ago turned out to be even better when they forgot to limit it to the normal 12's and 20's in the flyer. I cleaned out two stores of every .410 and 28 ga. AA they had at $44.90 a flat.
Early on I didn't have much use for Dick's Sporting Goods, but I began to appreciate them more and more as they continued their plunge into previously unexplored depths of ineptitude.
Always looking forward to their next Sunday flyer.