Question about BSA Big Cat 3.5-10X 42mm (3.5-10x42 mm)
How is nitrogen gas filled into a newly openned and cleaned frifle scope?
At a factory, the scopes are emptied in a vacuum chamber and nitrogen gas is used when the chamber is allowed to repressurize to the surrounding environment.
One possible solution is to re-assemble the scope in a clear plastic bag filled with nitrogen gas (working through the bag to re-assemble). Large plastic gloves can be taped into the sides of the bag.
Posted on Oct 15, 2008
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