Using MOA Adjustments

cvenne

cvenne

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Hi all, please bear with me with this long winded question.

Couple of assumptions:
Gun: 22-250 shooting 50gr Winchester Ballistic Silvertip
Zero'd: Sighted in at 100yds
Scope: Bushnell Trophy XLT 3*9*40 - NOT MILDOT
Wind: 0 - just for the purpose of this discussion
Scope adjustment is 1/4click per MOA - so 4 clicks = 1MOA

So what i need to know is how can i quickly calculate how many clicks i need to do to my scope if i want to shoot at a target at 400yds considering this bullet will drop 18.6".

I know 1 MOA is = 1" at 100yds, 1 MOA is = 2" at 200yds and so on as per an instructional video supplied on youtube by NSSF.

Is it as simple as saying 1 MOA adjustment to the scope will equal 4" at 400yds and thus since my bullet drops 18.6" i would need to make 4.65 MOA of an adjustment which would equal to roughly 18clicks on the top turret of the scope?
 
Your math is correct and will get you as close as you can get, without actually trying. As there are several possible sources of error (how well the scope tracks, the actual bullet drop, how precisely your 100 yard zero actually is), you won't know until you try.
 
It sure sounded to me like you watched the video.

Now that you have the theory, the practical is the next logical step. Whether you do it at 100 or 200, tracking the adjustments by going 12 clicks up, 12 to the right, 24 down, 24 left, 12 up and 12 right. That will eat up a box of bullets if you fire three shots after each adjustment.
Did they tell you that in the video (youtube) too?
 
I used to use a different technique. I relate distance to "clicks"

100 yards: 1 click = 1/4"
200 yards: 1 click = 1/2"
300 yards: 1 click = 3/4"
400 yards: 1 click = 1"

To shoot 0 at 400 yards, you would have to move cross hair down 18 clicks.

However, you have to remember to reset. I switched to a holdover and then to a burris with a ballistic reticle. The Fullfield and the E1 take a lot of guesswork out of it and range to 600 yards. There are others on the market as well. That's what I now use.
 
Counting clicks is the slow and overly-complicated way of doing it.

It's much simpler and faster to say at 400 yards you need 4.5 MOA, then move your elevation turret to "4", plus 2 clicks. Done.
 
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