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Old July 23rd, 2012, 00:05   #1
JerryMcGoulBerry's Avatar
Join Date: May 2012
Location: Calgary Alberta
How much does Duster gas decrease velocity?

So I want to start using a KWA MP7 But my indoor field requires 330 or less FPS and I heard duster gas decreases FPS but how much?
and another question, when using a duster adapter do I have to ad silicone anywhere? and is that HFC duster any better then regular store duster?
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