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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 Aluminium corrode in an odd kind of way?

October 2 2011 at 9:27 AM
Mark  (Login Specman)
Crosman Forum Member
from IP address 85.211.210.10


Response to I used aluminum

Excuse my ignorance but I only have limited experiences with Aluminium and I'm no engineer, however both were negative. The first I used a 3000kg climbing Karabina on the font end of a inflatable to secure a mooring rope. After a couple of days it snapped like toffee and was perforated like a tea bag! This was a brand new item!
The second, whilst in the diving business I owned an ex-Royal Navy Fleet Tender. It was a 180 ton steel vessel, however it had an aluminium bridge bolted to the steel deck. A gasket was used to keep the steel and aluminium apart and it was bolted with stainless bolts.

My concern would be moisture in the system corroding the aluminium and reacting with the tube and dis-similar metals.

Just something to consider. Wouldn't steel or stainless be a better option?

 
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