No guarantee how long it will last, but I just left Murph's and they had a fair amount of powder. Picked up some W231 and Varget. They had several pounds of each left. A lot of the Alliant Reloader powder (except RL22). Bunch of IMR rifle powder. No Unique or Universal. FYI the W231 was 23.99 and Varget was 26.99.