Main crosshairs won't change POI when magnification is adjusted. If it has some type of BDC reticle, then the extra references POI will change when magnification is adjusted. This is assuming it is a second focal plane scope. An easy way to check is to point it at a target and then adjust. If the crosshairs grow and shrink with mag changes, then it is second focal plane. You will also see that the main crosshairs remain on the bullseye, but the BDC references (if it has that type of reticle) POI will change on the target.