For years, I thought I was just a "bad shot". Trying to look down a scope, the image would suddenly disappear, as I sqeezed off the shot. Shooting clays, dove, or any other moving target, left me with a sore shoulder, and a memory, of seeing the left side of the barrel.
Long gun shooting for me was an excercise in futility, especially if it required speed. I have taken some deer, and an occasional lucky shot at flying objects, but frustration, took me away from it.
Shooting a handgun was not an issue, because I simply " moved" my gun to my dominant eye, and I am very accurate, with it.
I am looking at my 60's pretty soon, and although, putting a blackout on my left eye side of my shooting glasses has been somewhat effective, my concern comes from having to use, an AR, Shotgun, or any other long gun in a self defense scenario. Under stress, my eyes naturally revert to "focusing" in my left eye, and there is at least a second, or two, of hesitation, before I can engage the target. I won't have the luxury, of blacking out my non-dominant eye, if I have to use a long gun in a HD situation.
Please don't tell me to just close my left eye, God blessed me with the inability to wink, which may explain, my failures with women over the years, along with my looks, personality, and demeanor.

There is also the school of thought that I should just start shooting long guns left handed, but, I am so uncoordinated, that, trying that would more than likely result in me shooting myself, before a BG.
If I have not totally shut down, any conventianal, wisdom, I would appreciate, any help or suggestions, you may have. Thanks in advance.