I just got a Taurus Raging Bull 454 on trade and was wondering what kind of value it may have. It is a 6.5" with ported barrell. It is in nice shape and shot very little. I did go buy some ammo for it today and was hoping to shoot it before I sell it. I'm finding out it also shoots 45 long colt and 44 magnum is this correct? I really dont know much about this gun.