Calculating Target Movement and Leads

All the data published here re- 1/2

fleets a target moving 90 degrees to the path of your bullet, that is, moving directly right or left, which is full value. Look at the illustration at right.

Should the target move oblique right or left, whether toward or away from you, use one-half the value, since in rela-

FULL

FULL

Target movement will dictate full value, half value, or no compensation.

dve terms he's crossing your front at half the speed. When he's heading directly toward you or away from you, there're no value and no movement compensadon or leads at all. Aim dead-on.

The quickest way to determine if a man's moving obliquely is to note whether you can see both arms. A man traveling perpendicular will have one arm masked by his body, while an oblique mover has that opposite arm at least pardy visible.

Using data for .308 168-grain Match, determine how much to lead an oblique walking target that's 400 yards away. Do that now.

The answer is 14.5 inches, which is half the value for a man walking right or left at 3 mph. When I prepared these tables, I went with 3 mph as the speed a man travels when he's actually going somewhere; a cautious or tired man moves slower. The 6 mph figure represents a jog or slow trot or a soldier running with full webgear. And the dash speed I thought should be 10 mph. Should you act-

Sniper Training Targets

Target movement will dictate full value, half value, or no compensation.

MOVING TARGET LEADS

.308

168-gr. Match and M118LR 7.62mm

Distance in Yards

100

200

300 400

500 600

700

800

900

1000

Walk 3 mph

7"

13"

21" 29"

37" 46"

56"

68"

80"

93"

Trot 6 mph

13"

26"

42" 57"

74" 92"

113"

135"

158"

185"

Dash 10 mph

21"

44"

68" 95"

122" 154"

187"

224"

264"

306"

BULLET TIME

OF FLIGHT

.308 168-gr. Match and M118LR 7.62mtn

Distance in Yards, Time in Seconds

100

200

300 400

500 600

700

800

900

1000

0.11

0.24

0.38 0.53

0.70 0.87

1.06

1.27

1.50

1.75

uallv carry all this data in your head and apply it to each shot? Nope. I memorize the 3 mph leads, then double it for a trotting man and triple it when he's at a dead run. Mentally I can halve any one of these if the target's moving obliquely

The easiest way to remember .308 lead distances is to count in sevens—7, 14, 21, 28, 35, 42—and you'll have the correct walking leads almost perfectly for 100, 200, 300, 400, 500, and 600 yards. This technique's even closer for military iM 118 ammo.

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Hunting Mastery Selected Tips

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Responses

  • tanja
    How to calculate lead for a moving target with a rifle scope?
    11 months ago
  • jak
    How to figure mildot lead on a moving target?
    7 months ago
  • TAIMI
    How to calculate leads for shopting?
    6 months ago
  • sven
    How many mils of lead for moving target?
    3 months ago

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