How to Zero with Iron Sights

[Talyn]

If you're using an FSB and/or a rear A2 rear sight or BUIS on an A2 or A4 rifle here's some helpful info on how to zero your iron sights.

 

[TEXASforLIFE]

To me the larger issue is he's shooting up. I'd rather 0 at level. Take a look at it as if the scope mounting isn't in line with the bore (e or w, not n & s). Or like not lining up with the scope the same way (head tilted a little further in a different direction). It makes your "site" picture off. Under shorter distances it's minimal, but longer you might be fighting more than just drift (e & w). Maybe it's my ocd, but no.