Originally Posted by AndyJ
Parallax SHOULD'NT change poi but on cheaper scopes it could alter it. Parallax only affects poi when your eye position is wrong causing you to get error
I was loaned a lightstream to try, zeroed it at 22y with 22y px - pellet on pellet
Turned px to 40y and tried grouping at 22y again and it had moved the the zero / poi out by 15mm to the right.
move px back to 22y and it was back on the cross.
So, spending more money on the scope doesn't mean you will buy less px error