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Old February 11, 2013, 08:06 PM   #13
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Join Date: August 22, 2008
Location: las vegas, NV
Posts: 409
Another option to lend credibility is a calibration shot from a BB gun. I don't have the standard infront of me, but I know it's available. Specific FPS should equal a specifc penetration into your gel. Get close to than and you have some good gel.
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