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Lapua 4317596-.308-Winchester-cartridge-HPS-Lock-Base-B476
Lapua 4317596-.308-Winchester-cartridge-HPS-Lock-Base-B476

.308 Win. with the 11.0 g /170 gr Lock Base Semi-Auto bullet

This .308 Winchester tactical cartridge by Lapua is developed for short barreled semi-auto rifles. The cartridge loaded with the 11.0 g /170 gr Lock Base Semi-Auto projectile is designed for optimal ballistic performance in shorter barrels (12”-20”). Lapua tailored the powder type and charge weight to reduce muzzle blast and flash while still delivering outstanding accuracy and velocity. From a standard 16” barrel, muzzle velocity should be 754 m/s (2445 fps) and routinely capable of shooting groups under 1 MOA at 300 meters (<87mm / 300m) with quality rifles. This tactical cartridge works flawlessly with DMR-type semi-auto rifles.
This tactical ammo product is intended for MIL / L.E. use only.

.308 Win. / 11.0 g (170 gr) Lock Base Semi-Auto

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Caliber

.308 Win.
Bullet

Lock Base
Product no.

43M7600
Bullet Code

B476
Bullet type

Lock Base Semi-Auto
Bullet weight

11.0 g (170 gr)
Muzzle velocity

744 m/s (2441 fps)
Purpose

Tactical
Twist rate

1-12''
BC G1

0.498
BC G7

0.249
Velocity [m/s][fps]
Energy [J][ft.-lbs.]
Crosswind drift [mm]Crosswind drift [in] (sidewind 4 m/s)(sidewind 13 fps)
Trajectory [mm][inch]
Impact point above or below line of sight (Scope 40 mm above bore line)Impact point above or below line of sight (Scope 1.6 in above bore line)
Metric chart
0 m 100 m 200 m 300 m 600 m 800 m 1000 m 1200 m 1500 m
744 684 626 570 411 321
3044 2575 2158 931 568
0 23 96 228 1087 2228
Rifle sighted in at 100 m 200 m 300 m 600 m 800 m 1000 m 1200 m 1500 m
100 0 -170 -589 -3951 -8683
300 196 223 0 -2772 -7391
600 658 1147 1386 0 -3694
Test barrel length [mm]: 400
Imperial chart
0 yd 100 yd 200 yd 300 yd 600 yd 800 yd 1000 yd 1200 yd 1500 yd
2441 2262 2087 1918 1436 1139
2245 1928 1642 1386
0 1 3 7 34 69
Rifle sighted in at 100 yd 200 yd 300 yd 600 yd 800 yd 1000 yd 1200 yd 1500 yd
100 0 -5 -18 -123 -274
300 6 7 0 -86 -225
600 20 36 43 0 -110
Test barrel length [inch]: 16

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