Yes, that is an accurate way to measure trigger pull weight.
It is most accurate when nothing at all touches anything but the trigger itself (ie don't let the string touch the stock).
The trigger should also be perpendicular to the ground (the rifle should point perfectly straight up)
It is most accurate when nothing at all touches anything but the trigger itself (ie don't let the string touch the stock).
The trigger should also be perpendicular to the ground (the rifle should point perfectly straight up)