Traditions PA Pellet Ultralight barrel is made of premium grade Chromoly steel which is typically used on centerfire rifles. This material makes the barrel extremely strong, lightweight, and accurate. The 1:28" twist allows you to fire saboted bullets and modern muzzleloading projectiles. The barrel is coated with Premium CeraKote Finish which is 50 times more corrosion resistant than stainless steel. The PA Pellet Ultralight allows you to fire loose or pelletized powder and also has a stronger flintlock system enabling a more consistent ignition and better spark.