I need some important input from the 22 Guru's. I just got a High Standard Sentinel, it looks just like a Colt Cobra snub nose. On the barrel it says Sentinel Caliber 22. The problem is when I load a 22lr, the round is about an 1/8th of an inch short from the end of the cylinder. now when I load a 22 mag, it fits like I think it should. The only marking on the cylinder that I can find is on the face is a "L". Nowhere on the weapon does it say Long, LR, Short, WMR, or Magnum. Any input would be very helpful on what round this shoots. I will post pictures later tonight, Thanks.