FTR SHORTMAG.
On quality scopes the POI at different power ranges on a 2nd.focal plane scope will be negligible. When the POI changes dramatically you have 2 factors, either it is a poor qualty scope and/ or defective, and cheap scopes often are both . I am lucky to not have cheap scopes.The other factor is poor shooting.Who can learn to shoot with a improper scope?
I would refer to Schmidt and Bender , arguably an extreme high quality scope. Most of their reticles are in the 1st focal plane because it is accurate at all powers. Even though generally the shooter cannot tell much difference in POI with a quality scope in 2nd focal plane , which unfortunatly most scopes are.
I have never noticed a significat POI change with my 2nd focal plane scopes. You are right if you are experiencing significant POI change something is wrong.
Cisco
