Load data for .375 H&H Mag. + 300gr Swift A-Frame

580 suitable loads across 103 powder(s) for cartridge .375 H&H Mag. with 300gr Swift A-Frame bullet.

The most recommended powders for this combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.

Based on C.I.P., the max. allowed case length is 2.850 in / 72.39 mm, the max. cartridge length is 3.600 in / 91.44 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Load Specifications

ImperialMetric

Bullet:.375 | 300gr | A-Frame

Cartridge:.375 H&H Mag. load data

Case Length (L3):2.859" | 72.6 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.546" | 13.9 mm

Case Capacity:95.3 gow | 6.18 cm³

Primer Size:Large Rifle Magnum (LRM)

Max. Pressure (C.I.P.):62,366 psi | 4,300 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:6.0

Get PRO license to unlock all data and calculators

Community Loads for .375 H&H Mag. + 300gr Swift A-Frame

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)

71.5 gr	3.600"	23.5"	2457 fps	•••

66.0 gr	3.546"	24.0"	2500 fps	•••

65.9 gr	3.583"	24.5"	2426 fps	•••

•••	3.583"	24.5"	2312 fps	•••

•••	3.583"	24.5"	2257 fps	•••
•••	3.583"	24.5"	2396 fps	•••

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