1st off..
the Red Dot sits about 1.5" above the barrel... and when you shoot a .22lr it continues to climb, past 75yds
So at 5yds you would be aiming High....
Try Zero at 25yds..... it should be about about 1" high at 50yds
Does the Red Dot stay consistant at whatever distance you shoot?
If it stays the same... well it is what it is.... For a .22lr 5yds to 50yds the Bullet changes quite a bit... so may be tuff ta stay on bullseye till you figure it out
So i suggest.............
SHOOT MORE!!!!