Anyone had any issue with it? A buddy gave me a handful to try last Thursday. I fired 5 or 6 rounds of 3.5" #BB out of my 2 year old Rem 11-87. Not only did it knock the heck out of me, but my gun stopped cycling.(He was shooting a Nova and getting rocked like Elvis) I took the gun apart and had a piece of metal fall out of the reciever/mag area. I have shot 3.5" winchester supremes and blindside out of it without an issue. If you have any experiences with Hypersonic, I would appreciate the input. And if anyone knows of a gunsmith in the Conway area, I would more so appreciate that info.