Posted: Dec 15th 2009, 06:02 PM
i agree with banshee, i can feed my p22 anything for 1,000 rds. with no cleaning or oil and it keeps on trucking. i use remington thunderboldt which alot of people on here claim to be horrible ammo but i never get jams. i did alot of research before i bought mine and found out that it was the mags causing the problems and there is a series of numbers and letters on the mag that tells you if it is one of the first generation problem mags or not. i cant remember what they are. my mag is 265 93 44-A. i found this out by searching for reviews and stuff like that and just checked the mags before i bought. im sorry to hear you are having problems and im sure youll get them worked out and love your p22 as much as me. edit i found the info on the mags for ya
The production year is located on the receiver and is visible through the ejection port when the slide is closed. The year is indicated with a two letter code where A=0, B=1, C=2 and so on to I=8 and K=9 ("J" is never used as a year designator). In the image you can see the receiver is labeled with AH indicating a production year of '07.
There are three revisions of the Walther P22 magazine as the original design was prone to feed failures.[citation needed] Walther corrected the issue by modifying the feed ears and adding a short 3/8" slot which allows rounds to stagger as they approach the top of the magazine. The second version of the magazine is designated with an 'A' after the part number. Later versions of the 'A' magazine have an elongated 1" stagger slot which further improves the magazine's performance. Finally Walther has released a 'B' version which is made of thicker steel, has a tall spring retaining nub and retains the 1" stagger slot