Canadian Airgun Forum

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 Post subject: second big bore test bed
PostPosted: Tue Jul 09, 2013 3:00 pm 
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Joined: Sun Nov 18, 2012 3:21 pm
Posts: 61
Location: uk
Hi all I have been playing with my second big bore test bed,i have reduced the reservoir from 24" to 18" and fitted the valve to the end ,not internal as last time so as to aid removal for adjustment.The valve face has been reduced to 12mm with a bore of 9mm I have blended the transfer port angle as much as I can also the lift has been keep down to 4mm, with this setup I tested it at 500 psi and and on the forth shot the chrono reading was 386 fps what do you think


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