hammer spring versus valve stem versus rgulator adjustment
what is the most reliable method to increase my velocity?
Now i am on 254 m/s
my hammer spring is at the shortest length
now in order to increase the velocity more .
may i increase the regulator pressure or decrease the valve stem spring length?
All Replies
I dont have a regulator tester tool
but by using the chrono the regulator begin to drop velocity at about 85 bar
130 bars and 254 m/s? Looks really weird. 120 bars should be enough to push 16gr with 280 m/s.
Is it possible that overtightening HS can result in lower velocity? I have heard about that in the case of Matador. How can that be?
It depends.
Frist check to see if your barrel is properly aligned with your transfer port and is not partially blocked off. If so then
What caliber is it and the weight and brand of the pellet your using ? If it’s a 22 cal using JSB 18g then
How much speed/velocity do you want to increase it to ? 880 fps/270 mps then
Where is your regulator presently set at ? Don’t know then
Your hammer spring is at the shortest length ? Meaning the HST is fully compress CW (clockwise) all the way in then
Your value spring retainer maybe set to tight also causing it to close to fast. If not then
My guess from the little info given is that your regulator is set above 130 bars ? If so then
You need to turn the regulator adjustment CW (clockwise) about 1/8 th of a turn at a time, depending on it’s present setting to get the velocity up.
~ ATB ~ GKU
- You must be logged in to reply to this topic.
YES, It is possible that overtightening HS can result in lower velocity but I assume he has already tried that ? If so then
Where is your value spring set to ?
It all depend on the speed you want it set, if you want higher speed lighter setting, reduce the speed tighter.
1/2 to 1 turn CW after contact ? If not adjust this first before adjusting the reg and adjust HST again and see.
If so then
Try open up the regulator CCW 1/8 turn or so and see if velocity increases.
On your last posting I did advised you to take a measurement (mic) of your reg setting ?
Going to leave for my day job soon I’ll be back in about 15 hours, by then someone should chime in and help you.
~ GKU