Air Venturi The X Zone

You got it rdtricks . Reg 1900 to 2050 . Ham spring 1 3/8 to 1 5/8 . Velocity 865 to 875 with JTS 25 gr. Like some have said set ham spring at a spot 20 or there about below velocity that is possible with your reg setting . Then shoot groups and adjust spring 1/8 or no more than 1/4 turn in and out .Find the sweet spot. Good luck !
 
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