Noelle...
Military-level marksmanship training is hard to explain...
I will give you an analogy that applies more toward rifle shooting, but applies to all disciplines...
bear in mind--this does not relate to "combat" conditions--this is about long-range precision and focus for marksmanship, specifically 500-meter open sights against torso silhouettes...
Form is first, as in anything requiring precision...and in archery, everyone has minor variations, so I can't tell you much except you must concentrate on consistency above all else...
You must be able to focus on your target, but not to the exclusion of all else...you have to keep some tiny portion of your mind "open" to external influence, like someone shouting cease fire, or determining that there are more deer behind the one you just drew on, etc...
I hear some people can not keep from shooting once they're drawn, and that just doesn't cut it for me...so therefore some little portion of that calculator still has to be free to work...
In true precision work, after your form and environmental variables, the next two detractors are breathing and heart rate...believe it or not, the ebb and flow of your blood thru your body changes the position of whatever you're holding, in tiny increments...just try and focus a rifle on a pop bottle at 500 yards....you'll see what I mean...
But the heart's rate and breathing can be controlled, to an extent...
It is natural to become excited on a game animal...but once you commit to the shot, that's when the body goes into autonomous function, IF YOU HAVE PRACTICED ENOUGH!!
You are striving for unconscious concentration, with conscious movement, as you know that too much movement will attract attention...
But once you get in a position to draw, and subsequently shoot, your body should remember, thru repetition, the steps required execute a good shot...
The steps are basically: form, breathing, and heart rate, release control, and follow-thru...
Form should come OK, thru practice...
Breathing takes more time...because of the added excitement of live game...same goes for heartrate..
Release control is just that--even though some say you shouldn't know when it happens...well, you should! That's is what controls where we hit...by knowing when to execute the shot after we pick an impact point to hit...it's just the last few milliseconds that the breath is held, and the heart has slowed to where the body knows you are steady enough to shoot--even if you don't!
Granted, you DO NOT KNOW THIS as it is happening, it just comes together...
The way to make it come together, though, is through enough practice of controlling your form on targets, that the body automatically reverts to that form when you draw on critters--including sub-conscious control of breathing, heart rate, release, and follow-thru...
I know some of this is jumbled, and maybe out of order, but in essence, once you have all of the aspects of your form down, there are three portions of your mind that we be "working"...
One is excited as all hell...
It's subconscious brother is stopping adrenaline production for 2 seconds as you shoot...
And the safety nazi in the back of your head is watching to make sure everything else is a "go"...
Hope this helps some...will check back later...
Marc