450 Marlin

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Warning: Bullet selections are specific, and loads are not valid with substitutions of different bullets of the same weight. Variations in bullet length will alter net case capacity,  pressure and velocity. Primer selection is specific and primer types are not interchangeable. These are maximum loads in my firearms and may easily be excessive in others. All loads should be reduced by 5%,  and developed following safe handloading practices as represented in established reloading manuals produced by component manufacturers. Presentation of these loads does not constitute a solicitation for their use, nor a recommendation.

Cartridge: 450 Marlin

 Rifle: Winchester Model 1894  Max COL: 2.550″
 Bullet Diameter: 0.458″  Primer: CCI 200
 Barrel: 20 ” (Factory Ported)  Reloading Dies: Hornady
 Max case length: 2.100″  Group distance: 100 yards

Maximum Loads – Not Starting Points

Bullet

Bullet Weight
Grains

Net Water Capacity
H2O

COL”

 

Powder Type

Powder Charge
Grains

Muzzle Velocity
FPS

Muzzle Energy
Ft-Lbs

100 Yards
Group Size
3 Shot “

Remington JHP 300 57.8 2.455 RL 7 54.5 2057 2819 1.3
Remington JHP 300 57.8 2.455 IMR 4198 53.0 2207 3246 1.1
Nosler Partition 300 54.4 2.460 RL 7 52.5 2000 2665 1.2
Nosler Partition 300 54.4 2.460 IMR4198 51.0 2160 3109 0.9
GS Custom FN #133* 300 55.l 2.550 RL 7 55.5* 2173 3652 1.2
GS Custom FN #133* 300 55.l 2.550 IMR4198 54.0* 2241 3650 1.0
Hornady FTX 325 49.5 2.590 RL 7 49.5 2083 3132 1.4
Hornady FTX 325 49.5 2.590 IMR 4198 48.0 2126 3263 1.3
Hawk Precision FP 350 54.8 2.530 RL 7 52.0 1938 2920 0.9
Hawk Precision FP 350 54.8 2.530 IMR 4198 50.5 2152 3598 1.3
Hawk Precision FP 400 54.6 2.550 RL 7 48.5 1855 3057 1.2
Hawk Precision FP 400 54.6 2.550 IMR 4198 47.0 1938 3337 1.2
Speer FN 400 52.3 2.480 RL 7 47.0 1871 3110 1.3
Speer FN 400 52.3 2.480 IMR 4198 46.0 1914 3255 1.5
Swift A-Frame FN** 400 45.0 2.550 RL 7 42.5 1734 2671 1.3
Swift A-Frame FN** 400 45.0 2.550 IMR 4198 40.5 1790 2847 1.1
Cast Performance 460 49.0 2.550 RL 7 44.5 1818 3375 1.4
Cast Performance 460 49.0 2.550 IMR 4198 43.0 1831 3425 1.6
Hornady LeverEvolution 325 Grain Factory
Load
2107 3205 1.3
*Not for use with any
other bullets, only GS Custom Driving Band  **Deep seated, cannot use
cannalure
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