Load data for .45-70 Govt. + 300gr Barnes Original FN FB

17 suitable loads across 5 powder(s) for cartridge .45-70 Govt. with 300gr Barnes Original FN FB bullet.

The most recommended powders for this combination are ReloadSwiss RS 14 and Hodgdon TrailBoss.

Based on C.I.P., the max. allowed case length is 2.105 in / 53.47 mm, the max. cartridge length is 2.550 in / 64.77 mm, and the max. allowed pressure is 31,908 PSI / 2,200 bar.

300gr Barnes Original FN FB bullet image

Based on C.I.P., the max. allowed case length is 2.105 in / 53.47 mm, the max. cartridge length is 2.550 in / 64.77 mm, and the max. allowed pressure is 31,908 PSI / 2,200 bar.

Load Specifications

ImperialMetric

Bullet:.458 | 300gr | Original FN FB

Cartridge:.45-70 Govt. load data

Case Length (L3):2.105" | 53.5 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.382" | 9.7 mm

Case Capacity:79 gow | 5.12 cm³

Primer Size:Large Rifle (LR)

Max. Pressure (C.I.P.):31,908 psi | 2,200 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:Stabilizes in any common twist

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Community Loads for .45-70 Govt. + 300gr Barnes Original FN FB

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)

54.0 gr	2.515"	24.0"	2065 fps	•••

46.0 gr	2.515"	24.0"	2033 fps	•••

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