Section 3. Table of sight corrections.

Showing to what extent the point of impact is moved by a change of 25 yards in elevation or 1 point in windage.

Range. Correction
by a change
in elevation
of 25 yards.
Correction
by a change
in windage
of 1 point.
Yards.
100
200
300
400
500
600
800
1,000
Inches.
0.72
1.62
2.79
4.29
6.22
8.59
15.43
25.08
Inches.
4
8
12
16
20
24
32
40

An easy rule to remember the windage correction by is: "A change of 1 point of wind changes the point of impact 4 inches for every 100 yards of range."

Copy this table and take it to the range with you.

Example of sight adjustment: Suppose you are firing at 500 yards. The first two or three shots show you that your shots are hitting about a foot below and a foot to the right of the center of the bull's-eye. From the above table you will see that if you will raise your sight 50 yards and move the wind gauge half a point to the left the rifle will be sighted so that if you aim correctly the bullets will hit well inside the bull's eye.