I made a trip to the range today after lunch. I only took the Walther P22 with me. I started out shooting 50 rounds CCI Mini Mags. Not a single hiccup with those 50 Mini Mags. I moved onto the Federal HV Match that I used last time. These caused the same issues as during my previous range trip. I guess the HV Match just do not like the pistol. Not a huge deal, I will just give what I have left of those rounds to a friend of mine with a bolt action .22LR. That thing should not have any problems with the rounds.
I also ran 100 Remington Thunderbolts through the P22. Those ran fairly similar to the CCI Standard Velocity rounds I ran through the pistol during my previous range trip, though slightly worse. I also had two boxes of subsonic CCI rounds. I put one box through the pistol, but that was a chore. The subsonic just did not have enough power to cycle the slide. I knew I should not have bought the boxes, but they were available and I had a stupid moment. I guess the other box will also be going to my friend.
About half way through all the shooting, I ran the other 50 rounds of CCI Mini Mags I had on hand. I had one failure to eject with those 50. However, I would consider 1 FTE out of 100 rounds to not be too bad. Unfortunately, finding CCI Mini Mags is a pain at the moment. I went to Academy before lunch to see what they had in stock. They basically had no .22LR. They had some 9mm, but I am still doing pretty well on 9mm. I did however notice that the only calibers that they were limiting the number of boxes one could purchase to 9mm and .22LR. They had previously been limiting .40S&W, .45ACP, 5.56/.223, and .380 ACP. Not that I have anything in those calibers, but it is nice that those are no longer being limited.