Load data for .375 Rem. Ultra Mag. + 300gr Swift A-Frame

558 suitable loads across 90 powder(s) for cartridge .375 Rem. Ultra Mag. with 300gr Swift A-Frame bullet.

The most recommended powders for this combination are Alliant Reloder-26, ReloadSwiss RS 70 and Accurate High Country.

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 63,817 PSI / 4,400 bar.

Load Specifications

ImperialMetric

Bullet:.375 | 300gr | A-Frame

Cartridge:.375 Rem. Ultra Mag. load data

Case Length (L3):2.850" | 72.4 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.570" | 14.5 mm

Case Capacity:117 gow | 7.58 cm³

Primer Size:Large Rifle Magnum (LRM)

Max. Pressure (C.I.P.):63,817 psi | 4,400 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:1:6.0

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Community Loads for .375 Rem. Ultra 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)

103.0 gr	3.550"	24.0"	2688 fps	•••

85.0 gr	3.550"	24.0"	2604 fps	•••

92.0 gr	3.550"	24.0"	2546 fps	•••
•••	3.550"	24.0"	2682 fps	•••

•••	3.550"	24.0"	2525 fps	•••
•••	3.550"	24.0"	2681 fps	•••

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