Are all the screws tight on the 22 ??? I find I am not as careful with my 22s when I am walking around or cleaning them... you may have bumped it .... I always fire 4 shots when sighting in ... Then the rifle stays dirty till the season is over...
The Reg sticker always comes off the car by me.... I trust no one for that exact reason.... Not even family.... If the plates come off so does the sticker