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Barry McGee's Custom 2300

Cothrane stainless tube, left handed breech, power adjuster,
Lothar 10" barrel, H.P.A.sports co2 cap, Clague ldc,1701 trigger group,
Stace trigger, Rick Andres grips and a Mueller quick shot reflex sight.

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which is why we do the mods

December 14 2011 at 9:15 AM

dan house  (Login dan_house)
Crosman Forum Member
from IP address 153.90.162.47


Response to Yup. Cuz' what holds the checkvalve open isn't the pressure...

for flattop valves an piston, and the ICV.

1 full pump, like from 10.... yikes thats 10% loss just to crack the valve.

oy.... the 1377 valve doenst have the shelf like the 39x valve do to hang the ICV hardware on. Soooo... drill out the valve the create the shelf from the valve body,or drop a small it of tube in.......

And I'm going to suppose that the size and shape of the check valve itself has little bearing on the opening forces required.....



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This message has been edited by dan_house from IP address 153.90.162.47 on Dec 14, 2011 9:21 AM


 
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