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.
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Cartridge: 338 Winchester Magnum |
|
 Firearm: Ruger M77 Hawkeye African |
Max COL: 3.340″ Exceptions Noted |
| Bullet Diameter: 0.338″ |
Primer: CCI 250 |
| Barrel: 23″ |
Reloading Dies: Lee FL & Factory crimp |
| Max case length: 2.500″ |
Group: Distance 100 yards – Three shots |
| COL and Capacity | Load Data & Performance | ||||||||
| Bullet Type | Bullet Weight |
C.O.L. Inches |
Case Grains Water |
Powder | Charge Grains |
Muzzle Velocity FPS |
Muzzle Energy Ft/Lbs |
Group Inches |
|
| Nosler AccuBond | 180 | 3.280 | 76.1 | Re17 | 73.5 | 3182 | 4046 | 0.9 | |
| Nosler AccuBond | 180 | 3.280 | 76.1 | H414 | 75.5 | 3150 | 3966 | 0.5 | |
| Nosler AccuBond | 180 | 3.280 | 76.1 | IMR4895 | 68.5 | 3167 | 4008 | 1.1 | |
| Nosler AccuBond | 180 | 3.280 | 76.1 | Win760 | 76.0 | 3128 | 3911 | 1.1 | |
| Nosler BallisticTip | 200 | 3.340 | 75.2 | Re17 | 71.0 | 3008 | 4019 | 1.0 | |
| Nosler BallisticTip | 200 | 3.340 | 75.2 | H414 | 73.0 | 3014 | 4033 | 0.9 | |
| Nosler BallisticTip | 200 | 3.340 | 75.2 | RS Big Game | 70.5 | 3002 | 4003 | 1.4 | |
| Nosler BallisticTip | 200 | 3.340 | 75.2 | Win760 | 73.5 | 3034 | 4088 | 1.2 | |
| Speer Hot-Core SP | 200 | 3.310 | 78.4 | Re17 | 73.5 | 3081 | 4216 | 0.6 | |
| Speer Hot-Core SP | 200 | 3.310 | 78.4 | H414 | 75.5 | 3042 | 4111 | 0.9 | |
| Speer Hot-Core SP | 200 | 3.310 | 78.4 | RS Big Game | 72.5 | 3013 | 4031 | 1.2 | |
| Speer Hot-Core SP | 200 | 3.310 | 78.4 | Win760 | 76.0 | 3062 | 4165 | 1.1 | |
| Sierra GameKing | 215 | 3.340 | 77.1 | H414 | 73.0 | 2926 | 4086 | 0.8 | |
| Sierra GameKing | 215 | 3.340 | 77.1 | IMR4350 | 72.5 | 2864 | 3916 | 1.0 | |
| Sierra GameKing | 215 | 3.340 | 77.1 | RS Hunter | 75.0 | 2914 | 4053 | 1.1 | |
| Sierra GameKing | 215 | 3.340 | 77.1 | Win760 | 73.5 | 2945 | 4141 | 1.0 | |
| Speer SPBT | 225 | 3.310 | 75.9 | RS Hunter | 74.0 | 2878 | 4139 | 1.3 | |
| Speer SPBT | 225 | 3.310 | 75.9 | Win760 | 72.0 | 2889 | 4169 | 1.1 | |
| Hornady SST | 225 | 3.340 | 72.6 | Re17 | 67.5 | 2846 | 4047 | 0.9 | |
| Hornady SST | 225 | 3.340 | 72.6 | H414 | 70.0 | 2857 | 4078 | 0.8 | |
| Hornady SST | 225 | 3.340 | 72.6 | RS Hunter | 67.0 | 2816 | 3961 | 1.3 | |
| Hornady SST | 225 | 3.340 | 72.6 | Win760 | 69.5 | 2865 | 4101 | 1.1 | |
| Speer | 250 | 3.300 | 73.9 | Re17 | 66.5 | 2707 | 4068 | 0.7 | |
| Speer | 250 | 3.300 | 73.9 | H414 | 68.5 | 2708 | 4071 | 0.9 | |
| Speer | 250 | 3.300 | 73.9 | IMR4350 | 68.0 | 2648 | 3892 | 0.9 | |
| Speer | 250 | 3.300 | 73.9 | RS Hunter | 71.0 | 2719 | 4105 | 1.2 | |
| Sierra | 250 | 3.340 | 73.1 | BL-C2 | 64.0 | 2663 | 3936 | 1.3 | |
| Sierra | 250 | 3.340 | 73.1 | H4350 | 67.5 | 2669 | 3956 | 1.0 | |
| Sierra | 250 | 3.340 | 73.1 | H414 | 68.0 | 2717 | 4097 | 0.6 | |
| Sierra | 250 | 3.340 | 73.1 | RS Hunter | 71.0 | 2747 | 4187 | 0.9 | |
| Woodleigh | 250 | 3.265 | 74.1 | Re19 | 71.0 | 2701 | 4050 | 1.0 | |
| Woodleigh | 250 | 3.265 | 74.1 | H414 | 68.5 | 2719 | 4104 | 1.0 | |
| Woodleigh | 250 | 3.265 | 74.1 | RS Hunter | 71.0 | 2748 | 4191 | 1.2 | |
| Swift | 275 | 3.250 | 70.3 | Re19 | 67.0 | 2580 | 4063 | 1.2 | |
| Swift | 275 | 3.250 | 70.3 | H414 | 64.0 | 2570 | 4034 | 0.7 | |
| Swift | 275 | 3.250 | 70.3 | IMR7828SC | 69.0 | 2590 | 4096 | 1.3 | |
| Swift | 275 | 3.250 | 70.3 | RS Hunter | 66.0 | 2569 | 4-30 | 1.2 | |
