Hey yall. I just got my replacement parts in Monday from VTI. I had to replace the hand/spring in my Pietta 51 Navy. Ok, as far as I know, I put everything back right, and the hammer cocks, etc. fine. But when I put the cylinder on the frame, and then the barrel, I try to cock the gun, and the gun is just locked up. It will not cock nor will the cylinder rotate. I cannot figure out what the problem is, its pretty puzzlin to me, cause it just doesnt make sense. What could be making the cylinder lock up just because I put a new hand in it? Any help would be greatly appreciated.