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Tom West's Custom PC77 PumpMaster Classic Short Rifle

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no way I would never use helium

December 21 2011 at 1:36 PM
Steven McCann  (Login StevenM504)
Crosman Forum Member
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Response to im guessing stevens will run off helium , and shoot 22s at 1800fps , i called it. nt

I am going to run mine on a special mix of gases comprised of mostly nitrogen and about 21% oxygen and a few misc. gases thrown in the mix.

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