I bought my wife an M&P22 last month. I can't find any ammo for it ANYWHERE!!! I feel like an idiot because I told her that .22 is ALWAY available because it the "single most popular round in the world" Where is it all going? The guys at the gun store yesterday were baffled as well. They have been out for 2 months. Anyone here got any theories as to why .22lr is gone? I don't think DLHS is eating it all up! Another question, Does anyone here know if .22Long will work in a semi-auto? I have been using a little google-fu but mostly have found that it is cross compatible with .22lr bolt action, but no specific info on M&P... Thanks for the help!