11-87 Super Mag cycling issues?
 

Has anyone have problems with their 11-87 super mag cycling 3" loads? My gun is very clean, yet still will not cycle a second shell into the chamber. Any suggestions?

the rubber "O" ring is broke......if this is the case, take the "O" ring to your local plumbing supply store they can size it up, they cost a few cents each

I had this problem with my 11-87 SPS 12ga.