This is a test of commonsense. Complete the next sentence:

How to clean a muzzleloader
Make sure the firearm is unloaded.
You can do this by pulling back the bolt of the gun and checking for a ball and powder, or tilting the gun forward at a 45 degree angle. If you're using a traditional muzzleloader ball as ammunition, it will roll out the front of the barrel.
Never try to look down the barrel to see if there is a ball and powder in the firearm. Attempting to clean any type of loaded gun could result in serious injury or death.