villaman 9,983 Posted June 6, 2022 Report Share Posted June 6, 2022 Had a bit of problem ZAN 33gr slugs were shooting awful, just wouldn’t group to what I expect from them . Any how put the impact over the chronograph, only running at 890-900 fps , normally 970 fps . So did a retune with this achieving 990 fps so tuned it down to 972 fps . Well better than before, absolutely spot on 50-100 yards . So went out to 110 & 115 yards , couldn’t believe groups 5 shots at both distances and within 15 mm may be less 13 mm on both first pic 110 yard second pic 115 yards 2 Quote Link to post
Dervburner 2,549 Posted June 6, 2022 Report Share Posted June 6, 2022 The ability to fine tune makes the fac impact one of the best fac airguns in my opinion. I run different pellets and slugs at their optimum speed and it’s surprising what difference it makes to the accuracy 1 Quote Link to post
villaman 9,983 Posted June 6, 2022 Author Report Share Posted June 6, 2022 Definitely DB found out the problem tonight . The front adjuster had come lose so locktite it on now running at 972 -975 on power wheel 4 and 3.5 lines . 135 bar . Had it running at 1000 fps with ZAN 33 gr earlier and not even maxed out 1 Quote Link to post
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