Sweet spot mystery revealed!
Guys,
The legendary sweet spot of the RT valve is due to the reactive trigger. The way the trigger on the Mag works is the pressure that pushes the trigger forward comes from the on/off valve and the air pressure on the top of the pin. In an RT, the pressure on the trigger BEFORE you fire is LESS than the pressure AFTER you fire. Because of this, the trigger "pushes" your finger off of the trigger after the shot.
For example, the trigger may require say 3 lbs of pull, but as soon as the gun fires, the trigger requires 7 lbs of pull. Now, if your finger applies a pressure between the two values, then as soon as the gun fires, the trigger will push your finger back - but as soon as the gun resets, the required pressure drops and the gun fires again.
In practice it is not easy to get your finger to apply exactly the right amount of pressure - and your finger WILL have to move with the trigger, but you don't have to conciously "pull" the tigger. It helps if the difference between the two pressures is as high as possible. That difference is what we call the "reactiveness" of the trigger. Increasing the input pressure increases the reactiveness, and the length of the on/off pin can have some effect.
Thus, finding the "sweet spot" isn't trivial, it involves the gun being set up right AND the user knowing how to make it work. It is actually very impractical and you are better off not messing with it - it is really just a curiosity of the RT design.
FatMan
Guys,
The legendary sweet spot of the RT valve is due to the reactive trigger. The way the trigger on the Mag works is the pressure that pushes the trigger forward comes from the on/off valve and the air pressure on the top of the pin. In an RT, the pressure on the trigger BEFORE you fire is LESS than the pressure AFTER you fire. Because of this, the trigger "pushes" your finger off of the trigger after the shot.
For example, the trigger may require say 3 lbs of pull, but as soon as the gun fires, the trigger requires 7 lbs of pull. Now, if your finger applies a pressure between the two values, then as soon as the gun fires, the trigger will push your finger back - but as soon as the gun resets, the required pressure drops and the gun fires again.
In practice it is not easy to get your finger to apply exactly the right amount of pressure - and your finger WILL have to move with the trigger, but you don't have to conciously "pull" the tigger. It helps if the difference between the two pressures is as high as possible. That difference is what we call the "reactiveness" of the trigger. Increasing the input pressure increases the reactiveness, and the length of the on/off pin can have some effect.
Thus, finding the "sweet spot" isn't trivial, it involves the gun being set up right AND the user knowing how to make it work. It is actually very impractical and you are better off not messing with it - it is really just a curiosity of the RT design.
FatMan
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