I just acquired a model 66 from my grandfather. I know the gun isn't in any shape to fire because of the fact that the action bar is broke into 2 pieces. We see a whole lot of Mossberg 500/590 and Remmy 870 HD guns, but what do you don't see too often is a semi-auto one. What I was thinking about doing with this gun was getting the action bar fixed (obviously), and taking the barrel down to 18.5". I know that one of the most intimidating sounds in the world is the sound of a 12ga racking a slide, but wouldn't the sound of 5 00buck rounds flying you way also scare the **** out of you? Let me know what you guys think.