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Alan Alford's build

2250b Tube for later move to bulk CO2.
12" .22 Caliber Barrel from Doomsday Backpacker
Brian & Assoc. Alluminum Breech with 2 barrel screws
Original site rear
Pin site on Custom Mt. Airguns Muzzle Break
2x1 Centerpoint Scope with UTG dovetail adapters
Mountain Airguns Custom Bolt and Handle
Mountain Airguns Custom Power Adapter and spring guide
B&A Boss Valve for extra Power

Built mainly for fun and to shoot at local Field Trial Pistol Match.

It currently it shoots a 14.3 Crosman Hunting Pellet at about 530 fps in a 72 degree room for 8.92 FPE.



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Because an O-ring seal is dynamic, I don't think that's a worry.

March 28 2012 at 8:35 AM

Steve in NC  (Login pneuguy)
Troll, Banned User or Assorted Delinquent
from IP address 74.162.154.212


Response to The plurality of the leak joint(s)

So long as the preload is sufficient to form an initial seal when the valve closes, then the pressure differential will deform the O-ring to either complete the seal at pressure, or fail in extrusion.

Preload/initial_squeeze isn't what creates an O-ring seal. It just gets it started. Right?

Steve


    
This message has been edited by pneuguy from IP address 74.162.154.212 on Mar 28, 2012 8:36 AM


 
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