what is this MOA stuff,     what dose the MOA stand for?

It's how little Danish children say "mommy".



Well, it's true dammit.



But around gun folks it means "Minute of Angle".

For [s]a good[/s] more of an explanation that you'll ever need go here:

[url]http://riflestocks.tripod.com/moa.html[/url]

Basically if a gun shoots 3 inch groups at 100 yards, it is shooting 3MOA.  3MOA at 50 yards would be a grouping of 1.5 inches.
A 3 inch group at 300 yards would be 1MOA!  As would a .5 inch group at 50 yards.

A scope that says "1 clik=1/4 MOA" is meaning that if you turn that scope knob 1 click it will move the Point of Impact (POI) by a quarter inch at 100 yards, or by an eighth of an inch at 50 yards, or a half inch at 200 yards.

I think I know the answer.....

4 MOA?

At least that is what I think it is.

Minute Of Angle.  It is 1" at 100 yards, or 2" at 200 yards, or 1/2" at 50 yards, etc, etc and such and what not and so forth!

Dangit! you read the tutorial before I edited it out--it sounded a little condescending. Heck, I forgot what the problem was...12" spread at 300 yards? That would be 4 MOA.