Quoted:
Today while shooting at the range today a friend's New Smith & Wesson SW1911 Pro slide jammed all the way to the rear and won't budge. There are no external signs of anything wrong that I can see. I checked to see if the hammer was hung up and the slide some how or if the barrel was bulged, which neither was. Does anyone have any idea how to get the slide back forward? He was shooting Herter's 230gr FMJ .45 ammo.
I had the same thing happen to my brand new out of the box Dan Wesson CBOB 1911. I cleaned and lubed it before I shot it, and everything cycled nice and smooth. I ran 3 rounds of WWB through it, and the slide jammed all the way back. I ended up finally getting it apart, and the slide and frame were severely galled. Turns out that they machined it with the tolerance just a little to tight. As soon as a little heat got to the gun, it jammed. I ended up sending it back to them...and in a few days I had it back, and it's been running like a top even since.
It seems like many of the manufactured insist on making 1911's fit together like a close...nice and tight. That's all nice and good until one leaves their shop just a little out of spec...and then it jams up.
Call up S&W and see if they will take care of it for you...it sounds like the slide to frame fit is just too tight!