Remove the skin from 14 chicken drumsticks. It's helpful to use a paper towel to get a better grip on the skin to pull it off. Add cleaned drumsticks to a large container with a lid.
In a large glass measuring cup, microwave 2 cups of water until it comes to a boil, about 2 minutes. Add 1/3 cup Homemade Brine Mix to the hot water and stir until the salt and sugar have dissolved.
Add 1 cup ice to the brine mixture and stir until it is cool to the touch, then pour over the cleaned drumsticks. Add more water, about 2 cups, until the drumsticks are covered. Stir the brine to mix it evenly in the container, then cover and store in the refrigerator for at least 5 hours, or up to 12 hours.
After the drumsticks have brined, rinse off the spices and place them on a paper towel lined baking sheet. Pat them to dry, remove the paper towels, and rub with 1 tbsp olive oil, 2 tsp Oh My Spice! Lemon Pepper Dill Seasoning, 3/4 tsp sea salt, 1/2 tsp chili powder, and 1/2 tsp black pepper. Set aside at room temperature.
Pre-heat grill to 450°F. Once hot, brush or spray the grill grates with oil to prevent sticking, then add the prepared drumsticks. Grill for about 7 minutes with the "nice" side down, then flip and grill for another 7 minutes. Flip one final time and grill for another 4-6 minutes or until the drumsticks are cooked through (about 175°F internal temperature).
Remove the drumsticks from the grill and rest for at least 5 minutes before serving.