TargetTalk

Hi there,

Does anyone know

#1 the recommended velocity of HÄMMERLI AP20?

and

#2 How to adjust the velocity?

I can't see any info about the velocity by the manual.
http://www.carl-walther.de/public/downl ... _Ans02.pdf

Thanks in advance.

I don't know the specific recommendation for that model, but pretty much every match grade pistol has a velocity between 155 to 170 meters per second.

Usually there is a large screw on the back of the pistol, under the sights in the main body (normally covered by the grip), that compresses the spring that acts on the "hammer". The more you screw it in, the more energy the hammer will have, and that will make the valve stay open longer. More air, more velocity.

Before you turn it, make sure that there is no lock screw holding that large screw, or if there is, unscrew it first.

Last, I would not mess with it unless I had a crony to measure the speed accurately.

Hope this helps