You are right about the tough skin, I was not trying to undermine anyone, just repeating what the tech told me. When I shot those loads I was attempting to zero a new scope. I replaced my old 6x Redfield with a Vortex Diamondback 4x12 with the dead hold recticle, with a dead zero set to 200 yards the first hash mark under the crosshairs should put me dead on at 300 but I am about inch and a half high at 300, I guess their calculations are based on a different bullet and velocity.
