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This page shows ranging formulas for various reticles and dimensional units. Thanks to Robert Simeone, mathematician and rifleman, for compiling the formulas shown here.
Milliradian-based Reticles
| (1) |
|
Distance to Target(Yards) = |
Height of Target (Yards)
Image Size(mils) |
* 1000 |
|
| (2) |
|
Distance to Target(Yards) = |
Height of Target (Inches)
Image Size(mils) |
* 27.77 |
|
| (3) |
|
Distance to Target(Meters) = |
Height of Target (Inches)
Image Size(mils) |
* 25.4 |
|
| (4) |
|
Distance to Target(Meters) = |
Height of Target (Meters)
Image Size(mils) |
* 1000 |
|
| (5) |
|
Distance to Target(Meters) = |
Height of Target (cm)
Image Size(mils) |
* 10 |
|
Minute of Angle-based Reticles
| (6) |
|
Distance to Target(Yards) = |
Height of Target (inches)
Image Size(MOA) |
* 95.5 |
|
| (7) |
|
Distance to Target(Meters) = |
Height of Target (inches)
Image Size(MOA) |
* 87.3 |
|
| (8) |
|
Distance to Target(Meters) = |
Height of Target (Meters)
Image Size(MOA) |
* 3438 |
|
| (9) |
|
Distance to Target(Meters) = |
Height of Target (cm)
Image Size(MOA) |
* 34.38 |
|
One Inch Per Hundred Yard-based Reticles
| (10) |
|
Distance to Target(Yards) = |
Height of Target (Inches)
Image Size(IPHY) |
* 100 |
|
| (11) |
|
Distance to Target(Meters) = |
Height of Target (Inches)
Image Size(IPHY) |
* 91.44 |
|
| (12) |
|
Distance to Target(Meters) = |
Height of Target (Meters)
Image Size(IPHY) |
* 3600 |
|
| (13) |
|
Distance to Target(Meters) = |
Height of Target (cm)
Image Size(IPHY) |
* 36 |
|
Reprinted with permission of Linden B. (Lindy) Sisk.
The original can be found on Lindy's site here:
http://www.arcanamavens.com/LBSFiles/Shooting/Downloads/Ranging/
© 2007, 2008, 2009 by Linden B. (Lindy) Sisk
Permission is granted to print or photocopy the entire article intact, including this notice. All other rights reserved.
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