Trajectory Table M Long Range Gr Match Trajectory by Yards Expressed in Inches

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Zero Range

100

200

300

400

500

600

700

800

900

1000

100 yards

Zero

-4.5

-15.8

-34.9

-63.0

-103

-155

-222

-308

-415

200 yards

+2.3

Zero

-9.0

-26.0

-52.0

-90

-139

-204

-288

-392

300 yards

+5.2

+6.0

Zero

-13.8

-37.0

-72.0

-118

-180

-261

-362

400 yards

+8.7

+13.0

+10.4

Zero

-20

-51.0

-94.0

-152

-230

-328

500 yards

+12.7

+21.0

+22.2

+16.0

Zero

-27.1

-66.4

-121

-194

-288

600 yards

+ 17.2

+30.0

+36.0

+34.0

+22.6

Zero

-34.8

-85.0

-154

-243

700 yards

+22.1

+39.8

+50.7

+53.7

+47.5

+29.8

Zero

-45.1

-109

-193

800 yards

+27.8

+51.1

+67.6

+76.3

+75.6

+63.6

+35.0

Zero

-58

-137

900 yards

+34.2

+64.0

+87.2

+102

+108

+102

+84.7

+51.7

Zero

-72.3

1000 yards

+41.5

+78.5

+ 109

+131

+ 144

+ 146

+ 185

+ 109

+65.0

Zero

Ml 18 for consistent bullet weight, consistent powder charge, case concentricity, seated bullet straightness, and jacket concentricity. Except for case concentricity, the Ml 18 took a back seat to Federal's .308 168-grain BTHP Match. To ballisticians and ammunition specialists this was no great discovery, but, like many other studies, it demonstrated the need to develop an improved military sniping round.

U.S. Special Operations snipers and, later, Marine and Army snipers began firing a military version of the civilian 168-grain Match round, designated the M852. Though this significantly improved sniper accuracy, at longer ranges—especially when the 168-grain bullet went subsonic at about 900 meters-—that accuracy could not hold up. What was needed, the U.S. Marine Corps explained in a letter to the Smallarms Division at Picatinny Arsenal, was "7.62 mm Sniper ammunition having the capability of one Minute of Angle accuracy at

1000 yards." Further, this new round would have to parallel the trajectory of previous .308 sniper ammo to fit elevation adjustments on Bullet Drop Compensators.

Thus began a cooperative project involving the USMC, the Army's Picatinny Arsenal, Winchester/Olin's Lake City Army Ammunition Plant, and Sierra Bullets. Headed by Picatinny Arsenal's Paul Riggs, the project included Marine Program Officers Capts. Jay Tibbets and Fred Callies, Mark Resetich of Rock Island Arsenal, Gary Hoeflicker of Lake City Army Ammunition Plant, and Olin engineers Jim Bourdlais, Ed Bray, John Hall, Tim McFarland, and Steve Goldschmidt. The new load they were developing was designated the M118 Long Range.

First, Sierra designed a new 175-grain, boat-tail, holiowpoint match bullet that was slighdy more streamlined and 2 grains heavier than the old Ml 18 and 7 grains heavier than the M852 Match load. According to Sierra's senior

Ballistics Table

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Hunting Mastery Selected Tips

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