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barry01
10-02-2011, 07:29 PM
It's been a while since I have had to sight a gun in, but I do recall 1 click at a hundred yards equals a quarter inch, so 4 clicks is 1 inch at a hundred yards. But I just cant remember how many clicks at 25 yards to move POI 1 inch?

Thanks guys

sheephunter
10-02-2011, 07:29 PM
It's been a while since I have had to sight a gun in, but I do recall 1 click at a hundred yards equals a quarter inch, so 4 clicks is 1 inch at a hundred yards. But I just cant remember how many clicks at 25 yards to move POI 1 inch?

Thanks guys

4x as many.

barry01
10-02-2011, 07:32 PM
Perfect, thanks.

Lefty-Canuck
10-02-2011, 07:34 PM
When 4 clicks = 1 inch @ 100 yards it is 16 clicks (give or take, some scopes are not as accurate) = 1 inch @ 25 yards....like sheephunter said I just did the math :)

I figure I had to help due to a recent thread where my math skills were questioned by someone who was a whiz at fractions, mass and correct placement of decimals :)

LC

wwbirds
10-02-2011, 07:55 PM
The dial wil say what 1 click does at a 100 yards so we can't always assume 1/4 inch.
Some scopes only have 1/2 inch adjust per click and I own several where 1 click equals 1/10 of an inch at 100 yards.

Lefty-Canuck
10-02-2011, 07:58 PM
The dial wil say what 1 click does at a 100 yards so we can't always assume 1/4 inch.
Some scopes only have 1/2 inch adjust per click and I own several where 1 click equals 1/10 of an inch at 100 yards.

This is true but regardless the desired change will be 4X the amount @ 25 yards then what it is @ 100 yards.

So: With 1/2 moa clicks...2 clicks @ 100 yards for 1 inch change and 8 clicks @ 25 yards for 1 inch of change.

LC

wwbirds
10-02-2011, 08:05 PM
Good point Lefty it is still 4 times at 25 what it is at 100 whatever the adjustment is.

Rob

fordtruckin
10-03-2011, 05:49 AM
good info to know! so if I was shootin at 50 yards it would be only twice as many clicks? so 8 not 4?

Lefty-Canuck
10-03-2011, 06:58 AM
good info to know! so if I was shootin at 50 yards it would be only twice as many clicks? so 8 not 4?

Depending on the moa adjustment on your scope....

1/4 MOA to move the crosshairs 1 inch @ 50 yards = 8 clicks
1/2 MOA to move the crosshairs 1 inch @ 50 yards = 4 clicks

(remember this is all assuming your scope holds a true adjustment when making the adjustment, ie 1 click truly equals 1/4 MOA)

But Yes, you are correct when shooting at 50 yards 1 inch of adjustmment would be double the amount it normally is at 100 yards depending on the MOA adjustment of the scope you have.

LC

elkhunter11
10-03-2011, 07:01 AM
It's all simple geometry based on a right triangle.1/4" at 100 yards, equals 1/16" at 25 yards,1/8" at 50 yards, 1/2" at 200 yards, or 1" at 400 yards.

Sushi
10-03-2011, 10:16 AM
sorry to hijack the thread but since we are on the topic of sighting in, I have a newbie question.

Brand new .270 with mounted Leopold VX II - Fired 5 shots at a paper target at ~100 yds. none hit the paper, 2 grazed the cardboard backing aprox 12 inches left of bullseye...that means 48 clicks to get it on paper and in the ballpark...the scope handled it (and I even added 10 clicks, then backed down the 10 just to see if I had room for future adjustment) but is that too many clicks for comfort...so long as the scope will handle the adjustment, is it better to adjust windage or better to adjust the mounts??

Thanks, this forum has been a huge help to me!

Lefty-Canuck
10-03-2011, 02:16 PM
Here is what I do....a buddy taught me this.

If you have adjustable scope mounts....1st thing....you must be able to adjust windage on your bases if you are to continue..

Find the "center" of your scope adjustment......so dial it all the way in one direction, "bottomed out"...then count how many clicks to the opposite also "bottomed out".....

Now half the number and move it back to there...this is center adjustment.

Now using the windage adjustment screw on your base and a bore sighter adjust those screws so that your crosshairs are centered....

This method will give you the most adjustment left and right possible....

Then sight in as per normal using a bore sighter or not at whatever distance you prefer....I like 20-25yards to start to make sure I am "on paper" with 1 or 2 shots then I move back to 100....

LC

Sushi
10-03-2011, 07:33 PM
Thanks Lefty, I prefer not to have to do that but excellent advice if I get many responses that say 48 clicks is way more than normally needed for a properly boresighted scope. Maybe I'm still well into the normal range at 12 inches off at 100 yds...I have no idea what's normal but judging from some previous threads where people are starting at 25-50 yds just to hit paper, maybe I'm in the right ballpark. Thanks again!!

elkhunter11
10-03-2011, 07:45 PM
Thanks Lefty, I prefer not to have to do that but excellent advice if I get many responses that say 48 clicks is way more than normally needed for a properly boresighted scope. Maybe I'm still well into the normal range at 12 inches off at 100 yds...I have no idea what's normal but judging from some previous threads where people are starting at 25-50 yds just to hit paper, maybe I'm in the right ballpark. Thanks again!!

I don't like to have to adjust a scope so that it is near the adjustment limits to set the zero, but as long as I have a reasonable amount of adjustment left, I don't worry about it. I boresight, then start shooting at 100 yards, and I am usually within a few inches of zero with the first shot.

wwbirds
10-03-2011, 08:17 PM
Some scopes as it has been mentioned you can calculate the full range by bottoming out the dial and counting the clicks to the far side and calculating the centre. Without mentioning a brand there is one brand I avoid because it seems to bottom out at under 40 clicks full range so half would only be 20 in either direction.
In the one instance I was 5 inches left rather than use up all my click adjustments I used the windage adjustment on the rings to realign to centre before usinfg the scope adjustments. That scope was a 1/10 inch increment so I figured 50 clicks was too much.