Walther PPK/S CO2 Pistol

By Todd Cooper

The Umarex Walther PPK/S CO2 pistol is a 15 shot semi-auto BB pistol with real blow back action. The metal slide on this model moves rearward with every pull of the single action trigger, which results in a realistic pistol type recoil.

The PPK/S has a frame constructed of blackened metal with black plastic grip panels. The barrel is a 3.5” smoothbore, designed for BB use only. As with many CO2 pistols, the 12 gram vessel is housed within the hollow grip body.

My sessions with the PPK/S consisted of a short velocity test and a number of offhand accuracy tests using the popular isosceles hold. This pistol was designed as a rapid fire plinker rather than a tack driving target pistol and for that reason I did not perform benchrest accuracy tests.

The PPK/S gives a large number of shots from a single powerlet but velocity is more stable when a short rest is taken after each 15 shot clip is emptied. The most consistent velocity was obtained with a slow type of shooting pace.

All testing was done at a room temperature of 68-70F, using the Ruko labelled lead BBs. This Ruko imported Gamo BB weighs 8.2 grain according to the data on the Gamo web site.

Velocity (very slow fire)
Fresh powerlet	257, 268, 256, 254, 250, 244, 236, 234, 228, 229 fps
After 40 shots	243, 233, 211, 232, 223, 240, 230, 232, 229, 224 fps

15 Foot Offhand Accuracy (slow fire)
Group #1	1.6" - 10 shots
Group #2	2.3" - 10 shots
Group #3	2.5" - 10 shots	9 of the 10 - 1.7"
Group #4	1.7" - 10 shots
Group #5	3.2" - 10 shots	9 of the 10 - 2.2"

My typical 15 foot accuracy seems to be about 1.9" (when flyers are eliminated).

25 Foot Offhand Accuracy (slow fire)
Group #1	4.0" - 10 shots	9 of the 10 - 3.0"
Group #2	4.0" - 10 shots	8 of the 10 - 2.2"
Group #3	3.9" - 10 shots	9 of the 10 - 2.7"
Group #4	3.3" - 10 shots

My typical 25 foot accuracy seems to be about 2.8" (when flyers are eliminated).

15 Foot Offhand Accuracy (rapid fire)
Group #1	1.5" - 10 shots
Group #2	1.6" - 10 shots
Group #3	1.5" - 10 shots
Group #4	2.5" - 10 shots	9 of the 10 - 1.6"

My typical 15 foot rapid fire accuracy seems to be about 1.6".

For accurate rapid fire shooting, a fresh powerlet is needed. I tried a rapid fire group after 30 shots were fired and the 10 shot group measured 3.2" with the pellet holes forming a narrow vertical string. The first 20 shots from a fresh powerlet seem to be the best for consistent rapid shooting.

Is the Walther PPK a fun pistol to shoot? Oh yah! Peppering a paper target or styrofoam cup from 15-20 feet with rapid firing is a blast!

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