.22 Vulcan HST adjustment

Vulcan .22 x HST. UP 1/4 TURN

Was shooting great at 50 yards with 18.1 gr JSBs chronographed at about 898 FPS. BUT to find paper at 100 yards I had to hold over so far I was about out of scope.

MY .22 Vulcan requires the 2 Pin tool but what the heck newer models will only need an allen tool. Checking mine out I opted to insert 2 tiny allens and while holding some forward pressure I crossed through them with a heavier allen and turned the first two. Hey, it clicks like a good scope turret. So, being a cautious chicken I turned the HST up about 1/4 turn.

Pellet data BEFORE:
(10-11 Rounds)
SD MV FP Wgt BC PELLET
4.4 996 30 14.30 .019 CPHP
2.0 954 31 15.80 .016 JSB Pointed
2.2 898 32 18.13 .033 JSB
2.3 896 37 21.14 .035 H&N Baracuda

Pellet data AFTER 1/4 Turn of HST:
(10-11 Rounds)
SD MV FP Wgt BC PELLET
3.2 1008 31 14.3 .019 CPHP
3.3 971 32 15.8 .016 JSB Pointed
1.9 915 33 18.13 .033 JSB
3.6 843 32 21.14 .035 H&N Baracuds

*note “MV” stands for “True Muzzle Velocity” as calculated by the Caldwell chronograph considering my 5 foot distance from muzzle to chronograph.
*note2 while the 3 lower weight pellets increased in FPS the Baracudas with the best BC LOST FPS & FPE dramatically ❗

Well….. any questions or suggestions before I take it to the range ❓