Putting it all together (Part 1)
Everything at once! Calculate the elevation and windage corrections based on the following data:
| Target size | 76" |
| Target size | 3 mils |
| Angle | 15° down |
| Wind | 5 mph, left to right |
| Distance covered by target in scope | 5 mils, right to left |
| Time it took | 1.5 seconds |
| Bullet muzzle speed | 3250 fps |
| Bullet speed at the range you will calculate | 2100 fps |
| Shooter | Not moving |
1- Range
1.1- Horizontal range
1.2- Correct range for angle
The data says: 15° down. What if it said 15° up? No difference! Refer back to the Angles page...
Scope elevation should be set for a range of 680 yards.
2- Moving target
2.1- Target speed
![[ 5 mils * ( 24.5" / 12 ) ] / 1.5 seconds = 6.8 fps](images/all1-calculation3.png)
2.2- Time of flight
![[ 2 * ( 680 yards * 3 ) ] / ( 3250 fps + 2100 fps ) = 0.76 sec](images/all1-calculation5.png)
2.3- Lead in feet
2.4- Lead in mills
3- Windage
The target is moving right to left and the wind left to right. In the Moving - 2 page, we saw that:
If the wind and the target are moving in opposite directions:
Scope windage should be set for a left correction of 9.64 mph.
Results
Range: 680 yards
Lead: 2.55 mils
Windage: 9.64 mph to the left