Reply To: Are FX smooth twist barrels capable of grouping well at low velocities?

Forums PCP Airguns Are FX smooth twist barrels capable of grouping well at low velocities? Reply To: Are FX smooth twist barrels capable of grouping well at low velocities?

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elh0102
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I have a Royale 400 in .22 with original ST barrel (not the ST X liner system). I can shoot the JSB 16 on low, 680 fps, and it shoots very well. It doesn't give the kind of almost single pellet hole size groups at 25 yards as it does with the 18 grain on high, but it is a larger ragged hole. I don't know what your requirement is for accuracy, but mine shoots sufficiently well for general plinking and hunting inside 30 yards or so.