I recently bought a pair of Dan Wesson 1911s, a Valor and a V-Bob. Both pistols have slight barrel movement once the barrel is locked to the slide. After controlled racking of the slide (no magazine in the pistol), if I push down on top of the chamber I can feel a "click". My Ed Brown has zero movement if I conduct the same test. So my question to knowledgeable folks such as 1911Tuner is how much barrel movement is acceptable, and what are the common causes for this movement in production 1911s? I installed Ed Brown bushings and spring plugs in both Dan Wesson's and now there is no movement of either barrel in the slide after lock up. I put this down to the fact that the Ed Brown bushings are much tighter on the DW barrels compared to the DW bushings which have a considerable amount of free play.