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Old February 26th, 2009, 03:58   #2
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Join Date: Jun 2002
Location: Toronto
You should still be able to get a full mag of BBs no problem with a high flow valve shooting propane.

Tightbore barrels are another way of increasing FPS, as are longer inner barrels.

A 7" 6.01mm inner barrel with high flow valves should get you close to 400fps.
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