Load data for .45-70 Govt. + 405gr Remington SP

33 suitable loads across 9 powder(s) for cartridge .45-70 Govt. with 405gr Remington SP bullet.

The most recommended powders for this combination are Alliant AR-Comp, 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.

Load Specifications

ImperialMetric

Bullet:.458 | 405gr | SP

Cartridge:.45-70 Govt. load data

Case Length (L3):2.105" | 53.5 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.560" | 14.2 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

Get PRO license to unlock all data and calculators

Community Loads for .45-70 Govt. + 405gr Remington SP

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

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

	39.5 gr	2.512"	19.0"	1545 fps	•••

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