Rifle Scopes Quick Ranging Question

[wakerider017]

I just received some new glass and it has a 'ranging reticle.'
Never had one before, so I just wanted to make sure I had this right..

The reticle is a NP-R1. (MOA)

To figure distance is the formula?

Known Target Size (in inches) / 'X' MOA x 100 = Distance in Yards

I just got some paper out and this is what I came up with, but I haven't had algebra class in a really long time lol.

 

[maladat]

Re: Quick Ranging Question

1 MOA is not equal to 1" at 100 yards. It is equal to 1.047" at 100 yards. For small objects at close distances this won't matter. With large objects (more error) or at long distances (error makes a bigger difference to your shooting b/c you have more drop per yard) it can make a difference. Really your formula should be:

SIZE(IN)/(1.047*MOA)X100

Or:

SIZE(IN)/MOA*95.51

 

[sniperaviator]

Re: Quick Ranging Question

Or just use 100 and subtract 5% from the resulting answer.

 

[wakerider017]

Re: Quick Ranging Question

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: maladat</div><div class="ubbcode-body">1 MOA is not equal to 1" at 100 yards. It is equal to 1.047" at 100 yards. For small objects at close distances this won't matter. With large objects (more error) or at long distances (error makes a bigger difference to your shooting b/c you have more drop per yard) it can make a difference. Really your formula should be:

SIZE(IN)/(1.047*MOA)X100

Or:

SIZE(IN)/MOA*95.51 </div></div>


Thanks so much! I knew this, but forgot to factor it in to my formula!!