The present invention provides a barrel device capable of using various calibers of flanged centerfired ammunition in a breech loaded firearm. The barrel device is able to position and secure various caliber ammunition, whereby the action and firing pin will strike the center of the ammunition and cause it to be fired from the weapon. In some embodiments, the unique barrel device may comprise a non-newtonian type of fluid housed and contained in the barrel by a para-aramid synthetic material. In other embodiments, the barrel device may comprise a mechanical construct and may or may not use a synthetic fiber inner lining. In another embodiment, the barrel device may contain a foam type material to house and center the ammunition. In further embodiments, the barrel device may comprise both a non-newtonian type of fluid and a mechanical construct.