Minutes of angle (MOA) and clicks explained
Ok there is some miss information here on the site and it seems as if there is some confusion on how or what MOA is. So allow me to clear up a few things.
First of all, a click on your scope is different than MOA (minutes of angle). Most scopes are 1/4 MOA adjustment. Others have 1/8 MOA adjustments. It will most always say right on your scope turret what adjustment it is.
For a scope with 1/4 minute adjustments, 1 click is equal to a 1/4 inch change in point of impact at 100yds. 1 MOA at 100yds would be four clicks and would cause a 1 inch change in point of impact at 100yds.
Now to blow your mind, ready? A 1 MOA adjustment will move the point of impact of the round, 10 inches at 1000yds.
Basically:
1MOA at 100yds=1 inch shift,
1MOA at 200yds=2 inch shift
1MOA (still four clicks)at 300yds=3inch shift
and so on and so forth
So if a .22 40gr bullet falls 157 inches at 300yds (information provided in a previous thread), you take 157 inches, divide it by three (300 yds, 3 is the constant) and that equals 52.3 MOA (minutes of angle). Take that 52.3 MOA, round to the nearest .25 so 52.25MOA. (Usually you would round up, but .3 is really close to .25) Now you have your minutes of angle.
How do you translate that into clicks? Well if 1 MOA is 4 clicks on a 1/4 inch adjustment scope (8 clicks on a 1/8 adjustment scope) then simply take that 52.25 MOA and multiply it by four. So to hit your target at 300yds with this information provided, you will have to adjust your scope 209 clicks of elevation. This is if the information above is correct. This will change with bullet weight, barrel length and atmospheric conditions. Each gun also shoots differently so this should get you close enough so you can make any fine adjustments to put you dead center.
I hope I broke this down Barney style for those of you reading.
In comparison a .308, 175gr boat tailed sierra bullet out of a 26inch barrel drops right around 36.75MOA at 1000yds. That's about 147 clicks of elevation.
Hope this helps.
