Checked my panamax and it's true at 9x mag (well as near as i could tell with a bit of scope wobblle). It makes no difference anyway, use scope at whatever mag suits and stick to it. Paper targets set out at distances you shoot at and make note of impact point in mildots. You can download targets with half mil dot reticle on it which is true at the distance stated on the target. Simply set target at that distance and alter your mag until it matches