GTA
PCP - HPA - C02 Gate => QB-7X Gate -W/Co2 & HPA => : Sky.A June 18, 2006, 11:43:20 AM
-
my 78 shoots at full power on some shots and mouse farts on others like 3 or for good shots then several week ones and so forth anyone got a cure? :o
-
Maybe you've got a hang up in the hammer tube? There might be something obstructing the hammers path on its way to the valve stem. Also, maybe there is some debris in the valve port, or something(debris) interfering with the valve movement itself.
HTH!
DB
-
Also be sure to let the gun warm up a few seconds after each shot so your pressure maintained. Co2 guns are temperature sensitive and firing shots one after the other without allowing the gun's temperature to stabilize can cause fluctuations in velocity.
Russ S.
-
A tear down is what will tell you the problem, I've had the same thing happen, turned out a pellet fell into the gas tube and was catching the hammer some times and not others.
-
The QB78 .22 that I have stacks pellets on top of each other consistantly.. Sure hope I don't run into any major problems with mine.
I sure love shooting my QB. CharlieDaTuna did a nice tune on it last month and it is very enjoyable shooter.
Gene