Cross eye dominant.

[X-JaVeN-X]

Both eyes open is very important for hunting, skeet, trap, combat shooting, etc, where picking up and transitioning to multiple targets is aided by the wider field of view. If you're just punching paper on a static range, you're right it's not big deal, but when it comes to moving and shooting, with multiple targets, having both eyes open is essential.

I've done everything you mention except for "combat shooting" quite successfully and have ALWAYS shot with one eye closed....so my experience differs greatly from what you claim to be "essential".

I was very young when I started shooting (grandfather taught me). At the time, I only had the dexterity to close my right eye and so my grandfather taught me to shoot left handed (only shot long guns growing up). To this day, it's the only thing I do left handed.

I never heard anything about eye dominance until a few years ago when I started teaching myself to shoot with handguns. So, decided to check and see what I was and I really can't tell. Mine changes. I shoot handguns with my right eye and rifles with my left eye. My eyes seem to automatically adjust to whichever I'm shooting. If I'm shooting a rifle (left handed) and then switch to a handgun, I aim down the sights of the handgun and my left eye will still be dominant at this point. I then just wink for a second and the dominance essentially switches over to my right eye.

Now, with that said...I rarely shoot with both eyes open...I guess it's just because I shot for so many years with one closed that it seems more natural, and as I stated above, it doesn't seem to hinder me in anyway when I shoot (as some would have me to believe).

So, I don't know if you can be both eye dominant or not, but I can make my eye dominance change on the fly if need be.