I have a Beretta 21A and was wanting to try different kinds of ammo to see how it would work. I read in one of the forums that someone used Fiocchi with great success. I bought 2 bricks. Worst ammo I have used, it would not even eject in the 21A and when I tried it in my P22 90% of the time it would not cycle and 50% of the time it would not extract. My P22 will cycle 22 shorts but only 2 at a time,( one in the chamber and one in the clip). It is also extremely dirty. This is the ammo that is in the blue box with a red stripe around it and marked Performance Shooting Dynamics Standard Velocity.