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Fx crown max power

Aaron's 1991

I to am curious on this as I just got my crown and so far have not had a chance to tune it but I am not happy with the tune that was on it when I got it . I have been watching some videos in YouTube and I think I am ready to start trying to tune it . What caliber are you running mine is a .30 Cal and I plan on shooting the 44.75 jsb's 



Dan 
 
Start by opening the transfer port and pellet prope.

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