I don't have any pictures for you, but I've zeroed mine to a Trijicon Reflex (12 MOA) triangle...using the tip. It will group within an inch at 25 yards; I'm using .22LR CCI 40gr. solids.
I could never get consistent accuracy with .410 slugs, but using the entire 12 MOA triangle, I get pretty decent accuracy with buckshot and birdshot out to 15-25 yards depending on the load and pattern needed. The iron sights are not the best, but at least good for back up. I would recommend some type of optic for the .22LR to get the most accuracy out of it.
ROCK6