I bought a Ruger Super Blackhawk Predator three weeks ago the gun is very nice and well built . I shot the Predator today for the first time (it was unfired) Built in 1979 by Ruger and made into a Predator by Mag-Na-Port . Looks like I need to send it back to Mag-Na-port The Cylinder is just to tight . It is a pain to put the Cylinder in the Frame zero end shake . This is a 44 Mag that I have been looking for . After 30 plus rounds the Cylinder is to tight to index at all after it cools well it is fine . I will find out tomorrow if Mag-Na-Port will fix it after all this time (39 years) but unfired until today ? I could fix it myself but to nice for me to work on .