That said, there are plenty of other options. You mention the Sig Mosquito, and that is indeed a lot more forgiving. Someone else mentioned the .22lr 1911 model that Browning is now producing. (There is another company as well -- cant recall the brand right now.) I haven't tried one of those, but as a full-size pistol, it should be a lot easier to manage, plus has the added benefit of familiarizing you with a very common sidearm that comes in many larger calibers, so when you want to move up, you will already have a leg up on using the larger-caliber models.
I just pinged my private list, so chances are you will get more suggestions than you know what to do with. $:-)
Nice little pistol....Got some good reviews awhile back.
I love my little P22. So does my wife.....so much so that I haven’t been able to shoot it in quite some time.
I agree. The little Walther P22 is hard as hell to shoot. Although I have an SP-22 (4?) and it shoots like a charm. Put 100 bullets through the bullseye at 50ft one afternoon. I keep that target nearby and lay it out casually whenever a new suitor shows up for one my daughters.
Chiapa. Italian import. Well made. Good reviews.
Ruger Mk III also good, but it's a bear to disassemble for cleaning and reassemble.
I also have a Beretta 21A Bobcat .22 cal:
The Bobcat is good shooter also.
For target shooting none of the above can hold a candle to this Ruger .22 Cal Mark II Competition Target Model NR, that I have, I tried optics for a while and went back to the OEM sights.
The Mosquito can be very picky about ammo. Mine only works flawlessly with CCI Mini-Mags and Federal AutoMatch.
Haven’t seen the Browning 1911 .22LR, but I’ve read comments saying it’s size is 80-85% of a regular 1911.
German Sport Guns might be the other company you’re thinking of. The GSG 1911 .22LR is my favorite .22 handgun. It’s full size. Most of the parts(around 80% of the parts, I think) are interchangeable with standard 1911 parts. It works really well with just about any ammo. Much better quality for not much more $ than the Chiappa 1911 22LR(which is also full size but not designed to allow use of standard 1911 parts.)
the other dedicated new 22 LR 1911 is made by Chiappa firearms and is quite reasonably priced.