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bulked plinkster pretty much done , now for tuning ( pics

February 18 2017 at 3:03 PM

Robny  (Login robnewyork)
YF

photo sideview.jpg
well, not pretty , but i kinda knew that going in..the tank will eventually sit at 6 oclock below the stock, but for now this was expedient..An interesting part, I assume because of the massive plenum volume between the tank and valve is that the gun self regulates a bit.. I cannot get a shot off outside a 15fps spread,,pretty interesting .. another odd side effect is the valve doesnt always have the pressure to seat the check , so i need to recock quickly on occassion.. But thats easily fixed by going back to the heavier valve spring.
photo gauge port.jpg

another odd factoid , the valve sealed the tube with a 112 oring , yet my machined adapter only sealed the tube with a 113.Im down a few fps from just slapping in a 12 gram , and again , it needs to be tuned differently now that its almost all gaseous co2 reaching the valve, and not liquid..

photo completed_1.jpg

fun and easy project overall, the only challenge at all is sealing the tube..( you can externally test the bulk assembly , foster etc)matter of fact now that the pressure leveled off after initially piercing the 90 gram , the valve now seats no problem at 1000psi


photo inside PIC.jpg

TUNING ADVICE WELCOME, NEVER HAD A BULK GUN


    
This message has been edited by robnewyork on Feb 18, 2017 5:14 PM


 
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