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Old February 7th, 2010, 14:32   #1
Join Date: Dec 2008
Location: hope bc
.43g bb vs .20g bbs

how much fps will i lose using .43g bbs. i want to get a KJW m700p and i was planning to use .43g bbs cuz it goes 550 fps


is there a formula to use so i could calculate it by myself.
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