45-70 Government (Modern Rifles)

Case: Winchester
Twist: 1:20"
Primer: CCI 200
Barrel Length: 24"
Trim Length: 2.100"
Bullet Powder Bullet Diam. C.O.L Starting Loads Maximum Loads
Grs. Velocity (fps) Pressure Grs. Velocity (fps) Pressure
250 GR. Barnes Triple Shock X Flat Nose AR2207 .458" 2.525" Starting 51.9 grain 2260 fps 29500 psi Maximum 60.0 grain (C) 2607 fps 44600 psi
300 GR. Barnes TTSX AR2207 .458" 2.775" Starting 53.0 grain 2346 fps 39800 cup Maximum 56.0 grain (C) 2445 fps 46700 cup
300 GR. Sierra Hollow Point AR2207 .458" 2.525" Starting 59.5 grain 2394 fps 37300 cup Maximum 63.0 grain 2532 fps 50000 cup
325 GR. Hornady FTX AR2207 .458" 2.650" Starting 52.0 grain 2242 fps 37700 cup Maximum 56.0 grain (C) 2378 fps 46500 cup
325 GR. Hornady FTX AR2219 .458" 2.650" Starting 59.4 grain 2250 fps 37600 cup Maximum 63.0 grain (C) 2375 fps 45900 cup
350 GR. Hornady Jacketed Round Nose AR2207 .458" 2.540" Starting 50.5 grain 2104 fps 35100 cup Maximum 56.0 grain 2300 fps 50000 cup
350 GR. Hornady Jacketed Round Nose AR2219 .458" 2.540" Starting 52.0 grain 1898 fps 25800 cup Maximum 57.0 grain (C) 2143 fps 41100 cup
400 GR. Speer Jacketed Flat Point AR2207 .458" 2.540" Starting 48.0 grain 1915 fps 31800 cup Maximum 53.0 grain 2108 fps 49100 cup
400 GR. Speer Jacketed Flat Point (A) Bench Mark 1 .458" 2.540" This data is for use in Ruger No. 1 and No. 3 single shots, Browning Model 1885 single shot and Siamese Mauser bolt action rifles. Pressure limit 50,000 PSI/CUP Starting - - - Maximum 54.0 grain 2030 fps 44800 psi
400 GR. Speer Jacketed Flat Point (A) Bench Mark 2 .458" 2.540" This data is for use in Ruger No. 1 and No. 3 single shots, Browning Model 1885 single shot and Siamese Mauser bolt action rifles. Pressure limit 50,000 PSI/CUP Starting - - - Maximum 60.0 grain (C) 2130 fps 47600 psi
400 GR. Speer Jacketed Flat Point (A) AR2206 .458" 2.540" This data is for use in Ruger No. 1 and No. 3 single shots, Browning Model 1885 single shot and Siamese Mauser bolt action rifles. Pressure limit 50,000 PSI/CUP Starting - - - Maximum 58.0 grain (C) 2040 fps 40200 psi

C = Compressed Load, "-" = no data.

Relevant Notes & Warnings

Warning (A) This data is for use in Ruger No. 1 and No. 3 single shots, Browning Model 1885 single shot and Siamese Mauser bolt action rifles. Pressure limit 50,000 PSI/CUP

Relevant Bullet Acronyms

FN Flat Nose
HP Hollow Point
JFP Jacketed Flat Point
JRN Jacketed Round Nose
TSX Triple Shock X

Relevant Brand Acronyms

BAR Barnes
HDY Hornady
SIE Sierra
SPR Speer