Hi Guys, I've got a Mk2 Crown In .22 with 380mm barrel shooting jsb 18gr pellets. Anybody with same setup, what speeds do you shoot the 18gr for best accuracy??
Thats very close to the speed I shoot them out of my impact m3. So the FX superior liners like them fast.Surprisingly, mine likes 18.1 gr pellets at 970 fps. I never expected it to shoot that good at that speed. JSB 18.1 gr pellets seem to be the sweetheart for all FX .22 cal rifles straight from the factory.
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I have two crown mk2 and barrels that run 380mm, 600mm and 700mm. I see no difference in accuracy between them and I dont suffer poi problems on any of them. I had poi shifts when I bought them brand new so I puled the shrouds and looked at the spacers. I adjusted them since they were all bunched up closer to the breach. I got great accuracy then the poi shift started coming back within a couple groups. I took the shroud off again and found the last spacer had worked its way back down almost to the second spacer. So I wrapped electrical tape around the liner to form a stop to hold the spacer in place. No more poi shift after that and I had to do it on every barrel.How does the 380 mm barrel compare to the 500mm in terms of accuracy or consistency? Less POI shifting problems , maybe ?
EXACTLY WHAT MINE DOES WITH 18.1GR JSB!!!!Surprisingly, mine likes 18.1 gr pellets at 970 fps. I never expected it to shoot that good at that speed. JSB 18.1 gr pellets seem to be the sweetheart for all FX .22 cal rifles straight from the factory.
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Wow, that's fast, what reg settings are you on. Any other mods to get that speed with the 380mmSurprisingly, mine likes 18.1 gr pellets at 970 fps. I never expected it to shoot that good at that speed. JSB 18.1 gr pellets seem to be the sweetheart for all FX .22 cal rifles straight from the factory.
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Reg set at 150 and I have a dual transfer port and pin probe.Wow, that's fast, what reg settings are you on. Any other mods to get that speed with the 380mm