linestretcher I just used your suggested technique and it seems to work quite well--I was a bit surprised to see that the true that I had previously set using the outside plumb line was almost dead-on with the light-through-objective technique (I was also careful to make sure the rifle was square and level in all the axese to the plumb line) . I already have pretty poor eyesight--but I'm beginning to worry that something may have "snapped" (in me) during that session when seemingly out of the blue everything started looking canted and I started shooting wide.
