Originally Posted by sub-moa
I recently purchased a used but excelent Walther P22 With a 5" barrell. Took it out to shoot it and was pleased at first. I could shoot stationary 3" clay pigeons @ 50' easily. After about 25 rounds I stopped hitting. Went to a standard 25' pistol target and the best I could do was 3" groups @ 25'. Took it home and cleaned it and tried it again @ 25' paper. At first I was happy again I could keyhole the target, but... after 15-17 rounds the pattern spread again.
I'm wondering if the gun has a barrell issue. Does anyone have any experience with this gun or know anyone who has? I really like this gun 10 minutes at a time.
Actually they are very accurate for a DA/SA very light weight pistol. The thin barrel is of high quality and dissipates heat well. What makes them hard to shoot accurately is the short sight radius, DA trigger and it's impact on fire control components and the pistols very light weight. Put a red dot on the bridge mount, place the pistol on a rest and it will better 3/8" 10 round groups. It is not a target pistol or rifle though.
Walther makes some very fine target pistols. Some with the same barrel set up.
There are several things that could be wrong. The frame screws could be loose, there are two. The barrel nut could be loose. If the barrel nut is not tight, then the barrel is not on the pistol tightly.
And if you are shooting soft lead rounds like Remington Thunderbolts you probably have lead in the barrel. It is hard to scrub out and the lightly rifled P22 barrel will foul if fired rapidly with lead nose rounds. So will plenty of other pistols. I'd recommend Remington Golden bullets with the brass wash or CCI Mini Mags. P22s love RGBs. BTW, keyhole is a term used when a round is no longer hitting the target straight on and punching a round hole but rather the round has gone sideways due to either a leaded barrel or long distance. The hole then resembles an old fashioned key hole. I'm not sure what you meant be keyhole the target. Getting the lead out can be quite tricky......the stuff really likes to stick in there. Takes a brass brush and a lot of work to remove it. I'd recommend plated ammo.
Keep us posted on what you find and good luck. You'll get it. M1911
10 round groups at 21'. Resting hand on top of a table saw. Short barrel P22. Now if only my eyes weren't so old and me diabetic and I could find something other than crooked boolits.