Load Specifications
Bullet Manufacturer:Lapua
Bullet Weight:170 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Caliber:.300 H&H Mag. load data
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:85.9 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:11.5
Load data in caliber .300 H&H Mag. with .308 | 170gr | Lapua Naturalis bullet and 100 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon H414 and Alliant Reloder-16.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 55,825 psi | 90% | 2756 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,926 psi | 88% | 2782 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,896 psi | 86% | 2792 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,122 psi | 74% | 2756 fps | 97.8% |
| Accurate 4064 | <<locked>> | 88% | 55,158 psi | 88% | 2831 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,666 psi | 89% | 2930 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 55,303 psi | 89% | 2864 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 53,214 psi | 85% | 2822 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,882 psi | 86% | 2913 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,056 psi | 87% | 2815 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,448 psi | 89% | 2785 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,608 psi | 89% | 2995 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 53,722 psi | 86% | 2910 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,243 psi | 85% | 2838 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,824 psi | 86% | 2864 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 53,258 psi | 85% | 2933 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,592 psi | 88% | 2966 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,924 psi | 85% | 2900 fps | 96.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,598 psi | 70% | 2779 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,189 psi | 61% | 2677 fps | 96.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,371 psi | 79% | 2959 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,201 psi | 89% | 2881 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 53,940 psi | 86% | 2854 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 53,853 psi | 86% | 2831 fps | 97.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,622 psi | 89% | 2795 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,751 psi | 86% | 2844 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,607 psi | 88% | 2867 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 94% | 54,752 psi | 88% | 2927 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 92% | 55,172 psi | 88% | 2890 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 55,883 psi | 90% | 2877 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 53,272 psi | 85% | 2861 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,999 psi | 90% | 2913 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,216 psi | 89% | 2966 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,868 psi | 58% | 1765 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 53,592 psi | 86% | 2828 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,333 psi | 90% | 2854 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,043 psi | 90% | 2854 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,448 psi | 89% | 2835 fps | 98.5% |
| IMR 4350 | <<locked>> | 96% | 54,505 psi | 87% | 2864 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,753 psi | 89% | 2864 fps | 98.5% |
| IMR 4831 | <<locked>> | 98% | 56,420 psi | 90% | 2923 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,230 psi | 89% | 2890 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,056 psi | 87% | 2815 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,187 psi | 88% | 2838 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,433 psi | 87% | 2792 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,811 psi | 89% | 2844 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,201 psi | 89% | 2858 fps | 99.4% |
| Lovex S070 | <<locked>> | 96% | 56,231 psi | 90% | 2894 fps | 98.8% |
| Norma 201 | <<locked>> | 84% | 53,969 psi | 87% | 2808 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,679 psi | 88% | 2812 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,420 psi | 90% | 2900 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,274 psi | 89% | 2913 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 48,979 psi | 79% | 2913 fps | 97.5% |
| Norma URP | <<locked>> | 96% | 54,665 psi | 88% | 2917 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 53,722 psi | 86% | 2874 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 53,679 psi | 86% | 2917 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 54,288 psi | 87% | 2835 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,027 psi | 87% | 2851 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,303 psi | 58% | 1804 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,795 psi | 88% | 2854 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,505 psi | 87% | 2930 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,302 psi | 87% | 2966 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,825 psi | 90% | 2956 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,868 psi | 88% | 2986 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 54,679 psi | 88% | 2789 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,563 psi | 87% | 2812 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 53,766 psi | 86% | 2848 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,666 psi | 89% | 2887 fps | 96% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,590 psi | 83% | 2881 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 92% | 53,853 psi | 86% | 2831 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,201 psi | 89% | 2858 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,187 psi | 88% | 2838 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,811 psi | 89% | 2844 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,231 psi | 90% | 2894 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,840 psi | 90% | 2913 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,434 psi | 90% | 2867 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,867 psi | 86% | 2838 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,216 psi | 89% | 2746 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,695 psi | 89% | 2746 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,230 psi | 89% | 2808 fps | 98.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,111 psi | 82% | 2874 fps | 96.6% |
| Somchem S335 | <<locked>> | 84% | 54,752 psi | 88% | 2746 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,231 psi | 90% | 2858 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 53,940 psi | 86% | 2844 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 53,200 psi | 85% | 2920 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,431 psi | 84% | 2858 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 84% | 55,637 psi | 89% | 2730 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,621 psi | 88% | 2772 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,201 psi | 89% | 2789 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,390 psi | 89% | 2822 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 53,592 psi | 86% | 2864 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 54,418 psi | 87% | 2812 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 53,316 psi | 85% | 2782 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,289 psi | 90% | 2920 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,414 psi | 78% | 2858 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 53,374 psi | 86% | 2835 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,795 psi | 88% | 2861 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,027 psi | 88% | 2933 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,073 psi | 63% | 2805 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,751 psi | 86% | 2844 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 52,446 psi | 84% | 2710 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,962 psi | 72% | 2635 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,019 psi | 71% | 2621 fps | 95.4% |
| Accurate 3100 | <<locked>> | 94% | 37,275 psi | 60% | 2582 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 42,569 psi | 68% | 2635 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,676 psi | 51% | 2464 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 48,689 psi | 78% | 2759 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 41,336 psi | 66% | 2608 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 96% | 47,195 psi | 76% | 2795 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,821 psi | 81% | 2766 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,909 psi | 83% | 2736 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,788 psi | 72% | 2805 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 46,934 psi | 75% | 2792 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,220 psi | 66% | 2631 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,222 psi | 71% | 2697 fps | 99.2% |
| Alliant Reloder-16 | 52.9 gr | 80% | 31,966 psi | 51% | 2484 fps | 95.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,708 psi | 57% | 2608 fps | 98.5% |
| Alliant Reloder-19 | <<locked>> | 96% | 46,311 psi | 74% | 2782 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,775 psi | 45% | 2388 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,737 psi | 57% | 2615 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,185 psi | 55% | 2625 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,182 psi | 77% | 2769 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 41,060 psi | 66% | 2638 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 41,611 psi | 67% | 2608 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,402 psi | 84% | 2749 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,053 psi | 80% | 2785 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,800 psi | 67% | 2644 fps | 97.9% |
| Hodgdon H414 | 59.9 gr | 86% | 41,887 psi | 67% | 2694 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 86% | 45,440 psi | 73% | 2720 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 49,182 psi | 79% | 2769 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,269 psi | 47% | 2379 fps | 96.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,498 psi | 73% | 2746 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 86% | 41,234 psi | 66% | 2707 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,643 psi | 43% | 1575 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,108 psi | 76% | 2720 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 49,458 psi | 79% | 2756 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,439 psi | 70% | 2644 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,803 psi | 73% | 2667 fps | 96.7% |
| IMR 4350 | <<locked>> | 88% | 42,264 psi | 68% | 2644 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,770 psi | 65% | 2592 fps | 95.2% |
| IMR 4831 | <<locked>> | 82% | 33,025 psi | 53% | 2484 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 45,368 psi | 73% | 2726 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 50,821 psi | 81% | 2766 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,138 psi | 77% | 2733 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,211 psi | 77% | 2690 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 43,308 psi | 69% | 2644 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 35,549 psi | 57% | 2484 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 40,930 psi | 66% | 2621 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 47,413 psi | 76% | 2707 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,037 psi | 77% | 2710 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,613 psi | 70% | 2684 fps | 99.4% |
| Norma 204 | <<locked>> | 92% | 48,138 psi | 77% | 2795 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 42,641 psi | 68% | 2789 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 32,068 psi | 51% | 2467 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 43,482 psi | 70% | 2700 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 86% | 38,305 psi | 61% | 2625 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 50,691 psi | 81% | 2776 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,589 psi | 81% | 2795 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,919 psi | 43% | 1611 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,105 psi | 68% | 2628 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,413 psi | 76% | 2812 fps | 99.6% |
| ReloadSwiss RS 60 | 56.9 gr | 80% | 38,029 psi | 61% | 2674 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,808 psi | 54% | 2539 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 35,984 psi | 58% | 2608 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 51,430 psi | 82% | 2740 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,049 psi | 72% | 2657 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,551 psi | 62% | 2579 fps | 99.1% |
| Rottweil R 904 | <<locked>> | 98% | 52,272 psi | 84% | 2831 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 96% | 45,034 psi | 72% | 2762 fps | 95% |
| Rottweil R 907 | <<locked>> | 84% | 41,611 psi | 67% | 2608 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,549 psi | 57% | 2484 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,138 psi | 77% | 2733 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,308 psi | 69% | 2644 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 40,930 psi | 66% | 2621 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,856 psi | 64% | 2635 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,124 psi | 79% | 2753 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,253 psi | 76% | 2733 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,631 psi | 78% | 2651 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,712 psi | 65% | 2516 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,697 psi | 64% | 2533 fps | 95.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 47,877 psi | 77% | 2815 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 48,298 psi | 77% | 2651 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,023 psi | 79% | 2746 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 39,233 psi | 63% | 2582 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 28,660 psi | 46% | 2418 fps | 97.4% |
| Somchem S385 | <<locked>> | 94% | 42,917 psi | 69% | 2690 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 49,139 psi | 79% | 2641 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,005 psi | 72% | 2631 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,571 psi | 73% | 2644 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,434 psi | 60% | 2520 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 33,475 psi | 54% | 2474 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 51,097 psi | 82% | 2762 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,961 psi | 70% | 2638 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,967 psi | 53% | 2474 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 86% | 30,095 psi | 48% | 2464 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,011 psi | 53% | 2451 fps | 97.9% |
| Winchester 748 | <<locked>> | 80% | 51,227 psi | 82% | 2808 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 41,887 psi | 67% | 2694 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,891 psi | 45% | 2467 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,818 psi | 75% | 2733 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 100 powders for .300 H&H Mag. loaded with the .308 | 170gr | Lapua Naturalis. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,995 fps; across all powders the maximum-charge window runs from 1,765 fps to 2,995 fps. Accurate 3100 gives the best case fill at 100 %, and 100 of the 100 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. ReloadSwiss RS 60, Hodgdon H414, Alliant Reloder-16 rank at the top here: for .300 H&H Mag. with the .308 | 170gr | Lapua Naturalis they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.