338 Lapua Magnum – Hunting Handloads

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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.

Cartridge – 338 Lapua 65kpsi
Firearm Ruger Precision Rifle
Barrel Length 26.00″
Min – Max Case Length 2.7244″ +0.000″/-0.020″
Min – Max COL 3.6811″ +0.000″/-0.120″
Primer CCI 250
Bullet Diameter 0.3390″ +0.000″/-0.0030″
Reloading Dies Redding
Bullet Type Bullet Weight
Grains
Net H2O
Grains
Capacity
COL” Powder Type Powder Charge
Grains
Muzzle Velocity
fps
Muzzle Energy
ft/lbs
Speer 2405 200 101.0 3.530 Re 33 111.0C 3205 4563
Speer 2405 200 101.0 3.530 Retumbo 103.5 3298 4832
Speer 2405 200 101.0 3.530 RS Hunter 104.0 3387 5096
Speer 2406 225 97.2 3.530 Re 25 95.5 2984 4450
Speer 2406 225 97.2 3.530 Retumbo 101.5 3221 5185
Speer 2406 225 97.2 3.530 RS Magnum 101.0 3081 4744
Sierra 2600 250 97.3 3.650 AA MagPro 96.0 3009 5027
Sierra 2600 250 97.3 3.650 Re 33 104.0C 2986 4951
Sierra 2600 250 97.3 3.650 Retumbo 98.0 3113 5381
Woodleigh 56B 250 97.1 3.530 Re 25 94.0 2891 4641
Woodleigh 56B 250 97.1 3.530 Retumbo 98.0 3035 5115
Woodleigh 56B 250 97.1 3.530 RS Magnum 96.5 2859 4539
Swift A-Frame 275 92.1 3.460 Re 33 96.0 2722 4525
Swift A-Frame 275 92.1 3.460 Retumbo 90.0 2789 4751
Swift A-Frame 275 92.1 3.460 IMR 7828SSC 81.0 2680 4387
Nosler 54851 300 89.6 3.650 Re 33 98.0 2690 4821
Nosler 54851 300 89.6 3.650 Retumbo 92.0 2792 5194
Nosler 54851 300 89.6 3.650 Norma 217 92.0 2651 4683
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