Just bought the 22a last week for a plinking/fun gun. Took it to the range today with some Winchester 500 round box of hollow points and some Rem. Subsonics. First round, fails to eject. Second and about 80 - 90% of all following Winchester rounds fail to eject. The subsonics fire flawlessly. The Winchesters seemed to not be powerful enough to cycle the slide. They also seemed to jam in the chamber, making it difficult to pry them out with a knife. I gave up initially and switched to the 10/22. I decided to load it like a single shot to see what happened. About 80% failed to cycle the slide to ejection. I really want to believe it's a problem with the Winchester ammo and not with my gun since everything besides shot great. I did notice the Rem was 38gr and the Win was 36gr. Anyone else ever have similar problems?