FWIW, I have found that the 200 round boxes of A17 ammo is consistently less expensive at Wal-Mart, priced right at $50, than anywhere else around Omaha. Cabela's and Scheel's typically charge around $60 for the same ammo.
I bought 500 rounds of A17 ammo in 50 round boxes at Cabela's for $13 per box, 'cause the price was close to Wal-Mart's and I don't really care to carry those 200 round boxes in the field.
I have also noticed a lot of 17WSM ammo on Wal-Mart shelves, but none of it going anywhere.
