Hi, You set your regulator very high, is it really necessary? With my huben .25, regulator set at 160 bars with 35 clicks and zan 38gr .253 I get 984 fps, but it shoots better at 944 fps 32 clicks (it groups in 3cm at 60 meter). I had a Huben 22 in 2018 with huben slugs 40 gr I had problems...