Description
Product Overview
The 338 Lapua ammunition is world renowned for accuracy and performance, making use of high quality components and adhering to the strictest of tolerances. Designed for long range and bench rest shooting, Scenar bullets were used to set a world record perfect score in the 300 meter Moscow championship match. Factory testing has resulted in 10-shot groups that averaged 50mm at 300 meters. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.
.338 Lapua Magnum maximum C.I.P. cartridge dimensions. All sizes in millimeters (mm).
Americans would define the shoulder angle at alpha/2 ≈ 20 degrees. The common rifling twist rate for this cartridge is 254 mm (1 in 10 in), 6 grooves, Ø lands = 8.38 mm, Ø grooves = 8.58 mm, land width = 2.79 mm and the primer type is large rifle magnum.
History Of 338 Lapua Ammo
Service history | |
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Used by | Multiple official and civil users |
Wars | War in Afghanistan Iraq War |
Production history | |
Designer | Nammo Lapua Oy |
Designed | 1989 |
Produced | 1989–present |
The loaded .338 cartridge is 14.93 mm (0.588 in) in diameter (rim) and 93.5 mm (3.68 in) long. It can penetrate better-than-standard military body armor at ranges of up to 1,000 metres (1,090 yd), and has a maximum effective range of about 1,750 metres (1,910 yd) with C.I.P. conforming ammunition at sea level conditions. Muzzle velocity is dependent on barrel length, seating depth, and powder charge, and varies from 880 to 915 m/s (2,890 to 3,000 ft/s) for commercial loads with 16.2-gram (250 gr) bullets, which corresponds to about 6,525 J (4,813 ft⋅lbf) of muzzle energy.
Specifications On 338 Lapua Ammo
Parent case | .416 Rigby, .338/416 |
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Case type | Rimless, bottleneck |
Bullet diameter | 8.61 mm (0.339 in) |
Land diameter | 8.38 mm (0.330 in) |
Neck diameter | 9.46 mm (0.372 in) |
Shoulder diameter | 13.82 mm (0.544 in) |
Base diameter | 14.91 mm (0.587 in) |
Rim diameter | 14.93 mm (0.588 in) |
Rim thickness | 1.52 mm (0.060 in) |
Case length | 69.20 mm (2.724 in) |
Overall length | 93.50 mm (3.681 in) |
Case capacity | 7.532 cm3 (116.24 gr H2O) |
Rifling twist | 254 mm (1-10″) |
Primer type | Large rifle magnum |
Maximum pressure | 420.00 MPa (60,916 psi) |
Ballistic Performance For The 338 Lapua Magnum
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