Sorry for reviving an old topic, but I'm trying to zero my red dot scope too and I'm having some trouble. From what I read, I should try to zero it in at 60-70 feet (ideally). Should the hop-up come in action just before the 60-70 foot mark? Meaning, is the BB flying upwards when I hit my target at 60 feet?
I used to have a little tool that basically would allow you to fix your hop-up in under 5 shots. Three to check, then you measured the distance between the bull's eye on your target and the three shots. Finally, one shot to check it's good. I can't find that damn sheet anymore!
Anyways, anyone have steps to zeroing in their scopes or is it just gut feeling when you adjust your hop-up?