The number of reported failure to fires absolutely astounds me!! Maybe I have been lucky, or maybe I am watched over, but for all the 22 ammo I shoot, I cannot remember the last time I had a dud. For plinking, I have shot Remmy t-bolts, Win Wildcats, PMC, CCI, Aguila, Federal, Sportco, you name it. Nary a fail-to-fire. Of course, I have shot a truckload of Match ammo as well, and don't expect problems with it, and have not had any. Maybe some of these rimfires have light hammer springs?? I don't know, just wondering what is going on. Regards, Eagleye.