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FPS question on stock Discovery

March 31 2011 at 10:14 PM

  (Login coaldust)
Crosman Forum Member
from IP address 209.30.58.192

 

I finally got my Chrony set up and checked the vel on my Discovery.
It is bone stock except for a mellon adjuster. My question is, what should I be getting
for top fps with a 2000psi air fill?? With my adjuster 1/4 turn from spring bind,I am getting 650, 630fps.
I would have thought it would be better. Any suggestions??

QB78 Deluxe Rich from Mich tuned
crosman 2400KT custom shop with added Discovery air tube
QB79 Rich from Mich tuned
QB2078 mike melick tuned
.22 and.25cal Marauders
Life member NRA and Texas State Rifle Assoc.
.308 corsair
Crosman 2260

 
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