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Seems a little low to me, asuming your were shooting in air temperatures above 60F

January 27 2017 at 9:03 PM
Scot Laughlin  (Login classicalgas)
YF


Response to QB78 .177 MV- okay @ 600fps?

There's lots you can do to bump the velocity up, the archives here are full of tune tricks, but this kit from Archers..http://www.archerairguns.com/QB78-XP-Tune-Kit-p/xptunekit.htm is a great place to start as a newbie 78 tuner.

 
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