Reply To: HW97

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camd
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The majority of videos and reviews you have seen would of been at sub 12fpe. I had a similar unwelcome surprise with my hw77k after abit of time and some money i got it to shoot fairly sweet. I suggest fitting a tbt maxi kit with 12fpe spring polishing your piston all the way up to 2000 grit (i then finished mine with autosol). But the thing that really tightened up my grouping was adopting the artillery hold over resting the gun on the bag. Plumbers tape on stock screws and trigger screws will give you some extra confidence also