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Old 13th December 2008, 11:09 AM
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Default Chris Cundey's Pellet conversion table

to work out what your fps should be if you switch from JSB Exacts to JSB Heavies, to JSB Exact Expresses or Webly Mosquitos as they are known in the UK

Chris Cundey's Pellet fps to ftlb conversion table
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Old 8th January 2009, 05:14 AM
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Handy , I've saved it .
Thanks.
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Old 11th November 2009, 06:49 PM
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Nice link, thanks Rob / Chris, good timing as well considering I had the chrono out today!
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Old 29th March 2011, 11:55 PM
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Just found this and it looks pretty damned useful when fine tuning velocities in none AT rifles!
Andy
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Old 9th November 2011, 01:07 AM
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Here's a version of Chris' spreadsheet with an extra pellet type, fewer unnecessary columns and a calculator for determining the threshold velocities for 12 and 20 ft-lb limits.

You can download it here.

Last edited by dhb; 9th November 2011 at 02:02 PM. Reason: fixed the link
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Old 9th November 2011, 09:38 AM
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bad link..
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Old 9th November 2011, 01:31 PM
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I've edited mine and saved it as a share. Mine only has the 4 JSB variants ( RS, express, exact, heavy) listed. All formulas are still there but now hidden so you only see FPS and Ft/lbs:

LINKAGE

If anyone would like a copy as an ms excel file pm me your email and i will send it. I will even add pellet of your choice

Last edited by poison dwarf; 9th November 2011 at 01:36 PM.
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Old 15th October 2015, 06:22 AM
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Great link thank you
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Old 7th May 2017, 04:30 AM
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Default Pellet conversion

I found Chris cundeys pellet conversion very helpful .
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