All bending is measured from the CENTER of the barrel rib. A string looped over the front bead, laid "over" the center bead, and then extended taunt to the heel of the buttstock. Measure down from the middle of the string to the Center of the buttstock heel. That is your starting point. I use a six inch scale with large graduation marks. Since this is not exact(no closer than +/- .030(1/32") you should get close enough for your needs.
I would caution you however....changing point of impact via bending is not an exact science. Some people need more or less of the needed bend due to physical body build of the intended shooter. Hugh got there first in answereing....I would never argue with an English stockmaker!!!!
Last edited by DES/TSD; 06/26/10 01:00 PM. Reason: Hugh Lomas answered first
