I took my SR1911 to the range yesterday. It has been perfect since out of the box but not so this time. I was on the second magazine and it just stopped. I dropped the magazine out and was able to get the spent case out. Then the slide locked up. Nothing I did at the range helped so I put it away until I got home. Here I verifyed that it was empty but still sothing I did could get the slide freed up. It will slide back about 3/16" and hits a solid stop. I removed the bushing, plunger and recoil spring and still it was a no-go. On doing so I saw something drop to the carpet. It was a piece of the recoil spring about 3/8" long. Any advise as to what happened or how to get the slide free? If I can't get it I'll be contacting Ruger tomorrow.