the master eye is only significant if you are trying to look at or aim the barrel or in my case plural. read some books on shooting, mike macintosh for one, and wander means your subject is all over the place. anyway, glad you are doing it, gives us both something to do and the part of handling, using, the gun helps to develop a fluid motion that will get you more birds. an example of this is when it is really really cold out there while you are hunting, the misses go up and usually quite a bit as it makes your swing stiff and ragged, the same thing that happens when you haven't handled you gun for some time, again
Nope, deux.
Thanks for the library note though but I have read much, if not all, of MM and far more re swatting stuff with a scattergun. As well as having lived the practice for 50 years or so.
Misses in the cold often go up because of clothing bulk but climatic conditions or tiredness, or medications or on and on ad nauseum can increase the misses...as well as increasing the wounding.
Familiarization, Focus and Follow-thru will help any bird swatter the most...what will not help is ignoring any factor in a shot or shooting that is inconvenient to admit.
Slainte!
Thinking further, I believe there can be a difference between the master eye and the dominant eye....the whole master eye deal is a bit overblown on the Internet to me but it can be important so...
For example, I have fair vision at 61 and pass a driver eye check easily but was told at 40 that I could see a squirrel in a tree...better, so went with a prescription when hunting.
My prescription for each eye has changed over the years but....the right eye, my "Master" eye changes at a different pace than the left. Which means that my left eye becomes my dominant eye when prescriptions lag in updating. My right eye also degrades when tired at a faster rate...tired from use or concentration or allergies or whatever.
No amount of fit or anything else will compensate when your hand-eye coordination is off the mark from a bum peeper.
When I shot Registered Trap, The Dot helped with the concentration tiredness and stopping shooting registered has, to me, allowed my right eye to maintain it's sight to a longer degree...I never use The Dot now, don't need it.
There still are times tho when health and conditions allow the master eye to fall second in clear sight to what becomes my dominant eye...then, if not lucky or not shooting golden BBs, I miss or wound a bird.
As to helping folks shoot...better.
I was remiss in not suggesting an eye examination.....regardless of a real possibility for shooting help, it can be a very good thing to consider.
Especially, if one begins to miss at seemingly odd times and on normal shot presentations.
Practice seldom helps that bum peeper.