I call it Super Tuned Because I used a Vortek Piston Seal and added the two shims inside the piston for extra spring compression. No other Ruger, Stoeger or Benjamin 1400 or 1500 has ever broken the 1400fps barrier in a review that I have ever seen. The Gamo Hunter Extreme hit 1521fps with alloy pellets but failed to average 1200fps shooting the RWS Hobby 7 grain lead pellets. This Ruger Air Magnum averaged 1205fps shooting the RWS Hobby's.
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