what fps should i expect with a .22 qb79 on hpa

what fps should i expect with a .22 qb79 on hpa

Joined: June 8th, 2009, 10:51 pm

April 19th, 2012, 1:09 am #1

I have a qb79 deluxe .22 with an Archer xp kit and hdd installed. I am putting a ninja 13ci hpa bottle on it with an output range of 900 to 1200 psi. what can I expect?
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Joined: March 16th, 2009, 1:43 am

April 29th, 2012, 12:09 pm #2

but i have a 78... filling mine to 1400 psi and with some mild porting of the air port and a stronger spring i see 14.3 crosman premiers fly out at just under 700 fps... 22 shots.
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