I'll modify my earlier comments on the P22 accuracy. When I sent the pistol to S&W to fix the slide galling problem, they replaced the barrel. I fired it yesterday and the barrel change appears to have made a heck of a difference in the accuracy. At least it went from "where did it go?" to something I can fix by more practice with the pistol. I had to fix the extractor problems (every casing back in my face) and the slide wear problems. They seem to be unwilling or unable to address these problems. Now that it shoots more predictably, I'm not as negative about the pistol as I was in my earlier post.
I haven't noticed any leading problems on mine. I shoot mostly CCI Standard Velocity (lead, 40gr). This SV, not the expensive stuff in the plastic box. I get better results with this in all my rimfires, including the P22 than I do with high velocity ammo. Thanks for the tip, I'll start looking for leading in the P22.
It seems that about 2/3 of the P22 owners really like them and about 1/3 really don't. I may be shifting my position slightly now that I think I've got it working and shooting better. For most .22's in comparable price ranges, "better" is a matter of preference. However, from my experience the 22A, Ruger MKII/III and Buck Mark are better pistols than the P22.