Reply To: Hatsan 44 Regulators Did they

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Rodeo
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Huma.    I have one in my AT44 .22 short.  It is very easy to install.  Came with spare o-rings.  Very consistant.  I had tuned mine for shot count (short version / small air cylinder).    15.89 JSB, 40 shots @ 806 fps avg – extreme spread of 9 fps – standard deviation of 2 – 3200psi fill.    I just retuned it for 18.13 JSB's – 30 shots @ 802 avg – ES of 10 fps – SD of 2.   Huma, best thing I have done for this air gun.