Hello , when the magnification is changed from 8 power to 32 power the point of impact changes . the scope is zeroed at 25 yrds and was on 10 power . When i moved out to 50 yrds i increased the mag from 10 power to 32 power and the zero dropped 2 full dots , is that normal ? the scope is a 8 x 32 hawke air max . Thanks for the info .Ray