Brine the Turkey (Day Before): Place the turkey in a large food-safe container or brining bag. Pour in the wet brine until the turkey is fully submerged. Seal and refrigerate for 12–24 hours.
Prep for Smoking: Remove the turkey from the brine and rinse it thoroughly under cool water. Pat it very dry with paper towels. Rub the skin with olive oil or melted butter if desired. Lightly season with black pepper.
Preheat Smoker: Set your pellet smoker to 225°F.
Smoke the Turkey: Place the turkey breast side up directly on the smoker grates or on a shallow pan with a rack. Insert a meat thermometer into the thickest part of the breast (not touching bone). Smoke for 30–40 minutes per pound, or until the breast reaches 160°F and the thigh reaches 170°F.
Rest and Carve: Remove the turkey and tent it with foil. Let it rest for 20–30 minutes. The internal temp will rise to a safe 165°F. Carve and serve.