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    FX Impact M3 .22 Grouping Problems

    Thankyou Ries, I have just ordered some H&N 21g .217to try hopefully I'll get some results from them. But like you say might be worth ordering some sample. Shotgun pattern actually describes what I'm getting very well! I've also tried the fx hybrid slugs and didn't get great results from them...
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    FX Impact M3 .22 Grouping Problems

    .217 I've tried speeds between 760fps to 950fps with 600mm barrel. Groups aren't consistent but would say around 70/100mm at 50 yards.
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    FX Impact M3 .22 Grouping Problems

    Hi Guys, New here.. I'm struggling to tune my FX M3. I'm using the Jsb KO 25.39g but doesn't seem to matter what speed I'm sending the slug the grouping is all over the place with flyers. Im new to tuning the impacts so I want to say the problem is my lack of knowledge any recommendations...