Bass Pro has more than just about anyone that I've seen. Maybe Gander Mtn has some stuff, but I haven't been out there yet. Seems like muzzleloaders just aren't a big deal in TX, as there really is no special season for them. Any Wal Mart in Oklahoma City has nearly as much blackpowder stuff as the Bass Pro in Houston. OK has a short deer season, and has a special muzzleloader season.