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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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Doesn't look like much has changed...

March 28 2011 at 1:09 PM

Jim Crawford  (Login BlueMeanies)
Crosman Forum Member
from IP address 99.95.45.21

but looks can be deceiving.
[IMG][linked image][/IMG]
Lets see. over the last month or so I've tweaked the AS2250 quite a bit.

1st: Upped the pressure behind the pellet to 1800psi.
2nd: Beefed up the hammer spring.
3rd: Made a 1018 steel hollow probe bolt and cocking lever.
4th: Put anti-friction rings on the striker.
5th: Beefed up all seals.
6th: Made a metal transfer tube.
7th: Made a Delrin poppet.
8Th: Made a 12" shroud.
9Th: Had Leupold change the scope parallax from 60yrds to 25yrds.
10th:Changed the scope rings to a medium from a low.
11th:Waiting for a Pacific Pelletguns two stage trigger to arrive.

End result, went from 685fps w/25.4gr pellet to 790fps with the same 25.4gr pellet. 35.2fpe! Not a leak to be found anywhere.

Very pleased with how everything turned out. Raising the optic really helped with allowing for a much improved cheek weld. Groupings are good now but should be great after the new trigger goes in.

Going to have to change it's name to the turkey tenderizer -at least until rabbit season opens.

Gobble. Gobble.


    
This message has been edited by BlueMeanies from IP address 99.95.45.21 on Mar 28, 2011 1:15 PM


 
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