I'm SO left eyed. In my case, I just could never see through any weapon's sight if I were using the typical right hand grip, even though I am right handed. I just could not hit anything as I was first learning. My instructor told me to switch hands. When I switched hands to zero out, I quickly put 2 bullets through the same hole. That's why I have to use a left handed grip.

So I found this interesting....

"In other words, in the left half-field of vision, glance fixation is characterized by higher “information capacity”. This is directly connected with the speed of reading: the more symbols the glance perceives during one fixation, the quicker a person reads. There is one more sign of successfulness of reading: in the course of reading, the glance periodically returns back to the already read word (apparently due to difficulty of perception). Thus, in the left-sided text, the “left-eyed” probationers made less returns than they did in the right-sided text, which means higher successfulness of the “left” text recognition. Besides, the majority of the “left-eyed” persons performed faster quick eye movements – saccades – to the left than to the right."

Are you Left Eyed or Right Eyed?