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 photo 63f5b325-0274-4312-9dbd-2effde5b3715_zps0x27orls.jpg

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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Maximum cocking effort

January 4 2012 at 6:05 PM
Ron  (Login oo7fuzz)
Crosman Forum Member
from IP address 24.167.225.137


Response to "" 3.14(R squared)x Valve Pressure.""""

is not that easily computed by simply determining the MA of the lever itself. There is something to say for the scissor linkage itself. Where maximum force on the handle/lever to cock the pump occurs not when the handle closes but many degrees beforehand. So I think to compute the moment of arc where the pump handle requires the most human effort requires serious math.

 
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