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Old 5th October 2013, 08:02 AM
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Conor Conor is offline
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Join Date: May 2009
Member of: Nelson & Nomads airgun club
Location: Ardboe, Co.Tyrone.
Posts: 2,657

7.9grn needs 825fps to be as near 12ft/lb as possible.

Lighter pellets will produce less energy due to their lighter weight.

A 10.6 needs 710fps to be 12ft/lb.

A 8.4grn needs 800fos to be as near 12ft/lb as possible.

You will always achieve a higher muzzle energy with a heavier pellet in my experience.
He who never made a mistake never learned!
He who never missed never shot!
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