What matters is temperature, not how long you smoke it. The temperature in a Big or Little Chief changes a lot depending on exposure to wind, sun and outdoor temperature. Stick an instant read thermometer into your smoker so you can monitor what's going on in your smoker. 6 hours or 5 pans at 220ºF and you'll have jerky. 12 hours at 75ºF and it won't be done. There are lots of discussions about brining and smoking on the recipe board, below.