in my neck of the woods there are 2 walmarts only one them sells BP supplies which is in the next town over, its inventories are constantly being replenished and never have anything on clearence all year long so im not worried about that wally world ever discontinueing their BP stuff. Also the town i live in has an ordinance code that outlaws the sale of Black powder and all substitutes in that case the gun stores around town figure if they cant carry the propellants then why carry any BP supplies. so the only way to get BP stuff is mail order or go to the next town over and get the stuff and walmart.