444 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 be excessive in others. All loads should be reduced by 5% as a starting point for development where cartridges have greater than 40 grains in capacity and 10% for cartridges with less than 40 grain capacity following safe handloading practices as represented in established mainstream reloading manuals. Presentation of these loads does not constitute a solicitation for their use, nor a recommendation.

444 Marlin 42kpsi MAP
Firearm Marlin
Barrel Length 22″
Min – Max Case Length 2.225″ +0.0″/-0.020″
Min – Max Cartridge Overall Length 2.500″ – 2.570″
Primer CCI 200 – Large Rifle
Bullet Diameter 0.4305″ +0.0″/-0.003″
Reloading Dies Lee Precision

 

Bullet Type  Bullet Weight
Grains
Net H2O
Grains
Capacity
COL” Powder Type Powder Charge
Grains
Muzzle Velocity
fps
Muzzle Energy
ft/lbs
Speer DCSP 240 55.1 2.540 AA 2015 54.0 2345 2930
Speer DCSP 240 55.1 2.540 Re 10 51.0 2341 2919
Speer DCSP 240 55.1 2.540 H4198 48.5 2312 2849
Hornady XTP 240 54.8 2.535 AA 2015 54.0 2360 2967
Hornady XTP 240 54.8 2.535 Re 10 52.0 2393 3052
Hornady XTP 240 54.8 2.535 H4198 48.5 2316 2859
Hornady FP 265 55.0 2.560 AA 2015 52.0 2234 2936
Hornady FP 265 55.0 2.560 Re 10 50.0 2270 3032
Hornady FP 265 55.0 2.560 H335 57.0 2303 3121
Speer DCSP 270 51.6 2.530 Re 7 47.0 2241 3010
Speer DCSP 270 51.6 2.530 H4198 45.5 2177 2842
Speer DCSP 270 51.6 2.530 H335 55.0 2263 3071
Hornady XTP 300 49.0 2.535 H4198 42.0 2018 2713
Hornady XTP 300 49.0 2.535 H335 51.0 2039 2770
Hornady XTP 300 49.0 2.535 RS X-term 51.0 2017 2711
Swift AF/HP* 300 49.0 2.560 Re 10x 46.0 2088 2904
Swift AF/HP* 300 49.0 2.560 H4198 42.0 2040 2773
Swift AF/HP* 300 49.0 2.560 H335 51.5 2107 2958
Case trimmed to 2.165″ to meet max COL and match cannelure
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