Note: I'm well aware that Umarex makes the PPK/S in .22 LR for Walther. Every time I see a forum post on this gun, someone always stops by and loses their sh** about this fact. I knew that when I bought this gun. I feel no special bond to the Walther brand and I don't care about the long-term value of a gun that will be used for plinking. Anyway, I got my new Walther PPK/S in .22LR last week and took it to the range today to break it in. I put about 300 rounds of assorted brands and types through it to see what it handled best. Here are my observations. Unsurprisingly, CCI Mini Mags and Stingers (I have tons of these) all cycled reliably, every time. I shot 100 rounds of 40gr CPRN, 100 rounds of 36gr CPHP, and 50 rounds of Stringers. All ran flawlessly. I was especially surprised at just how powerful the Stingers felt when they went off. All that extra pressure led to a brighter flash and heavier recoil for a .22. Winchester ammo sucks. I consistently had about 3 to 4 FTEjects in just about every loaded mag. I've had a lot of issues with this stuff even out of my hearty Ruger 10/22, so it didn't surprise me here. I shot a small box of American Eagle 40gr lead round nose ammo, and it was mostly reliable. Maybe a FTEject or two, but nothing to the tune of what the Winchester ammo produced. Interestingly, I shot a box of 45gr CPRN American Eagle subsonics and every single one shot reliably. They have way less velocity than the Mini Mags, so it makes me wonder if it was the 5 extra grains that made them run so well. And they shot super soft, while managing to cycle the gun every time. Lastly I shot some CCI shotshells just for kicks. It felt like I was throwing sand at the targets. They of course won't cycle any gun. The only thing I don't like about the PPK/S-22, aside from that God awful DA weight, is the slide bite. I ride my Glock pretty high and have never experienced slide bite. But this thing sliced me open one tiny nick at a time. I can see how someone with less hand meat (i.e., someone not so fat) wouldn't have a problem. But for me my only hope is to either decrease my body fat index or develop a nice callus so I can withstand the slicing. Let's face it, the latter option is more likely to happen than the former. Also, the sights suck. I put some bright orange nail polish on the front sight, but the entire sight picture is so tiny that small variations in position lead to much wider misses by the time the bullet hits the target. Of course, I was shooting in a relatively dim indoor range against black reactive targets, so it was difficult to see the space between the front sight post and the rear notch. Maybe when I take it with me to shoot my steel targets I'll paint them white and have better luck. Overall, I like this gun. It is for plinking, plain and simple. And I think it will serve me well for that purpose.