Sighting In Red Dot

[golfernash]

Been shooting them for years and always sight in with a sled. If the dot is on the target it doesn't matter where your cheek, face, or eye is

[bbcoach]

Been shooting them for years and always sight in with a sled. If the dot is on the target it doesn't matter where your cheek, face, or eye is

I utilized a lead sled for initial sight at 12-13 yards with dove loads.  Dial it in dead on then back up to 40 and shoot your turkey load to check.  Adjust as needed and Go Hunt!  As Nash said, once the red dot is sighted in where the dot is, is where the shot will go.  Cheek, face, eye or cant of the gun doesn't affect the target dot. 

[g8rvet]

I did some reading about this and there are some exceptions. What everyone has said is mostly true. There is no such thing as truly parallax free, there is just very little parallax.  Curved lens red dots are worse for parallax.  The real advertisement should be "very minor parallax".  The closer or further you are from 50-100 yards, the more the parallax, even in "parallax free" red dots is accentuated. Luckily, we are shooting shotguns and this effect is minor. 

this video helps if you understand that really neither of the red dots in the video exist - truly parallax free and full parallax.  https://www.youtube.com/watch?v=in8qj4Xvb3Q