Load data for .338 Lapua Mag. + 300gr Hornady HPBT

329 suitable loads across 56 powder(s) for cartridge .338 Lapua Mag. with 300gr Hornady HPBT bullet.

The most recommended powders for this combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ReloadSwiss RS 80.

Based on C.I.P., the max. allowed case length is 2.724 in / 69.20 mm, the max. cartridge length is 3.681 in / 93.50 mm, and the max. allowed pressure is 60,916 PSI / 4,200 bar.

Load Specifications

ImperialMetric

Bullet:.338 | 300gr | HPBT

Cartridge:.338 Lapua Mag. load data

Case Length (L3):2.724" | 69.2 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.776" | 19.7 mm

Case Capacity:114 gow | 7.39 cm³

Primer Size:Large Rifle Magnum (LRM)

Max. Pressure (C.I.P.):60,916 psi | 4,200 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:12.0

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Community Loads for .338 Lapua Mag. + 300gr Hornady HPBT

Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.

Charge (gr)	C.O.L.	Barrel Length	Velocity (fps)	Pressure (psi)

82.3 gr	3.665"	25.6"	2237 fps	•••
94.9 gr	3.665"	25.6"	2593 fps	•••

Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.