Load Specifications
Bullet:.308 | 165gr | Barnes Solid
Bullet Manufacturer:Barnes
Bullet Weight:165 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:1:11.0
Load data in caliber .300 H&H Mag. with .308 | 165gr | Barnes Solid 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 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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.
A valid access license is required to use the Personalized Load Calculator.
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% | 55,840 psi | 90% | 2789 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,085 psi | 88% | 2815 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,882 psi | 88% | 2867 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,882 psi | 88% | 2867 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 54,723 psi | 88% | 2825 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,716 psi | 73% | 2776 fps | 97.4% |
| Accurate 4064 | <<locked>> | 88% | 55,129 psi | 88% | 2864 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,347 psi | 89% | 2956 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 54,897 psi | 88% | 2894 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,057 psi | 90% | 2897 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,127 psi | 85% | 2930 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,882 psi | 86% | 2844 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,143 psi | 88% | 2818 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,694 psi | 88% | 3015 fps | 99.9% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 53,011 psi | 85% | 2927 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 52,866 psi | 85% | 2867 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,417 psi | 86% | 2890 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,086 psi | 90% | 3012 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,751 psi | 86% | 2989 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,228 psi | 84% | 2917 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,178 psi | 69% | 2802 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,994 psi | 79% | 2982 fps | 99.3% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,737 psi | 88% | 2907 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 53,679 psi | 86% | 2884 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 53,548 psi | 86% | 2854 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,230 psi | 89% | 2822 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,432 psi | 86% | 2871 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,273 psi | 87% | 2897 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 92% | 55,825 psi | 90% | 2976 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 96% | 56,231 psi | 90% | 2940 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 84% | 55,463 psi | 89% | 2904 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,246 psi | 90% | 2936 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,434 psi | 89% | 2940 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,505 psi | 87% | 2986 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,839 psi | 57% | 1788 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,651 psi | 89% | 2890 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,447 psi | 87% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,795 psi | 88% | 2867 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 90% | 54,056 psi | 87% | 2841 fps | 98% |
| IMR 4350 | <<locked>> | 96% | 54,056 psi | 87% | 2884 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,317 psi | 89% | 2887 fps | 98.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,808 psi | 85% | 2904 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 54,810 psi | 88% | 2920 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 53,882 psi | 86% | 2844 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,882 psi | 88% | 2867 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,259 psi | 87% | 2822 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,506 psi | 89% | 2874 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,940 psi | 88% | 2881 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 55,912 psi | 90% | 2920 fps | 98.5% |
| Norma 201 | <<locked>> | 84% | 53,766 psi | 86% | 2838 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,331 psi | 87% | 2838 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,014 psi | 90% | 2927 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,462 psi | 87% | 2930 fps | 96.4% |
| Norma MRPᴾ | <<locked>> | 100% | 48,399 psi | 78% | 2930 fps | 97% |
| Norma URP | <<locked>> | 96% | 54,172 psi | 87% | 2940 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 86% | 52,953 psi | 85% | 2897 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 96% | 52,924 psi | 85% | 2936 fps | 98.7% |
| Ramshot TAC | <<locked>> | 82% | 53,940 psi | 86% | 2861 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,882 psi | 86% | 2881 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,521 psi | 59% | 1831 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,433 psi | 87% | 2877 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,954 psi | 87% | 2956 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,447 psi | 86% | 2989 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,042 psi | 88% | 2979 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,099 psi | 87% | 3005 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 82% | 54,650 psi | 88% | 2818 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,346 psi | 87% | 2838 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 53,534 psi | 86% | 2877 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,140 psi | 82% | 2900 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 92% | 53,548 psi | 86% | 2854 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,940 psi | 88% | 2881 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,882 psi | 88% | 2867 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,506 psi | 89% | 2874 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,912 psi | 90% | 2920 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,042 psi | 88% | 2933 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,130 psi | 90% | 2894 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,476 psi | 86% | 2864 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,795 psi | 88% | 2772 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,477 psi | 89% | 2776 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,940 psi | 88% | 2835 fps | 98.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,647 psi | 81% | 2894 fps | 96% |
| Somchem S335 | <<locked>> | 84% | 54,491 psi | 87% | 2772 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,724 psi | 89% | 2884 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 53,635 psi | 86% | 2871 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,173 psi | 90% | 2995 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,822 psi | 83% | 2877 fps | 97.1% |
| Unknown powder | <<locked>> | 94% | 55,201 psi | 89% | 2949 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 84% | 55,172 psi | 88% | 2759 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,230 psi | 87% | 2802 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,737 psi | 88% | 2815 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,013 psi | 88% | 2851 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 53,127 psi | 85% | 2887 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 54,273 psi | 87% | 2841 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 52,982 psi | 85% | 2812 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,622 psi | 89% | 2943 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,066 psi | 77% | 2881 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 52,997 psi | 85% | 2861 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,825 psi | 90% | 2976 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,812 psi | 62% | 2825 fps | 99.8% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,302 psi | 87% | 2907 fps | 96.5% |
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% | 52,460 psi | 84% | 2743 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,208 psi | 72% | 2671 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,300 psi | 82% | 2815 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,300 psi | 82% | 2815 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,063 psi | 72% | 2657 fps | 95.2% |
| Accurate 3100 | <<locked>> | 96% | 39,885 psi | 64% | 2664 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 42,786 psi | 69% | 2667 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 34,171 psi | 55% | 2552 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 48,385 psi | 78% | 2785 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 41,089 psi | 66% | 2631 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 98% | 49,893 psi | 80% | 2871 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,459 psi | 81% | 2789 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,663 psi | 83% | 2769 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,425 psi | 71% | 2828 fps | 99% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 49,821 psi | 80% | 2874 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,075 psi | 66% | 2657 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,034 psi | 71% | 2723 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 82% | 33,968 psi | 54% | 2562 fps | 95.8% |
| Alliant Reloder-17 | 56.6 gr | 80% | 35,766 psi | 57% | 2635 fps | 98.2% |
| Alliant Reloder-19 | <<locked>> | 98% | 49,110 psi | 79% | 2861 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,646 psi | 48% | 2467 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,214 psi | 55% | 2648 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,863 psi | 77% | 2792 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 41,017 psi | 66% | 2664 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 44,367 psi | 71% | 2690 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,025 psi | 83% | 2772 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,792 psi | 80% | 2815 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,684 psi | 67% | 2671 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 84% | 42,467 psi | 68% | 2736 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 90% | 46,630 psi | 75% | 2769 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 48,907 psi | 78% | 2799 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,443 psi | 47% | 2408 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,583 psi | 68% | 2723 fps | 99.6% |
| Hodgdon Superformance | <<locked>> | 88% | 44,106 psi | 71% | 2795 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,789 psi | 43% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,540 psi | 70% | 2684 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 45,005 psi | 72% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,335 psi | 65% | 2608 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 82% | 42,453 psi | 68% | 2628 fps | 95.4% |
| IMR 4350 | <<locked>> | 90% | 44,643 psi | 72% | 2720 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,105 psi | 69% | 2667 fps | 95.5% |
| IMR 4831 | <<locked>> | 86% | 34,026 psi | 55% | 2533 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 45,150 psi | 72% | 2753 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 50,459 psi | 81% | 2789 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,182 psi | 77% | 2766 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,080 psi | 77% | 2720 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 43,410 psi | 70% | 2674 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 38,029 psi | 61% | 2566 fps | 95.6% |
| Lovex S070 | <<locked>> | 86% | 40,857 psi | 66% | 2644 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 47,326 psi | 76% | 2733 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,776 psi | 77% | 2740 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,410 psi | 70% | 2710 fps | 99.2% |
| Norma 204 | <<locked>> | 94% | 50,865 psi | 82% | 2871 fps | 95.6% |
| Norma MRP | <<locked>> | 96% | 42,235 psi | 68% | 2805 fps | 95.1% |
| Norma URP | <<locked>> | 82% | 34,316 psi | 55% | 2552 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 43,163 psi | 69% | 2726 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 38,159 psi | 61% | 2651 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 50,386 psi | 81% | 2802 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,270 psi | 81% | 2822 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,108 psi | 43% | 1634 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,989 psi | 67% | 2651 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,007 psi | 75% | 2835 fps | 99.3% |
| ReloadSwiss RS 60 | 56.6 gr | 80% | 38,058 psi | 61% | 2700 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,765 psi | 54% | 2566 fps | 95.2% |
| ReloadSwiss RS 70 | 60.3 gr | 84% | 35,911 psi | 58% | 2628 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 51,430 psi | 82% | 2772 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,208 psi | 72% | 2687 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 38,566 psi | 62% | 2608 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 98% | 47,921 psi | 77% | 2844 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 86% | 44,367 psi | 71% | 2690 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,029 psi | 61% | 2566 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,182 psi | 77% | 2766 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,410 psi | 70% | 2674 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,857 psi | 66% | 2644 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,639 psi | 64% | 2661 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,936 psi | 78% | 2779 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,949 psi | 75% | 2756 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,573 psi | 78% | 2680 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,683 psi | 65% | 2546 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 42,453 psi | 68% | 2615 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 47,456 psi | 76% | 2838 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 48,109 psi | 77% | 2677 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,689 psi | 78% | 2772 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 39,189 psi | 63% | 2608 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 28,732 psi | 46% | 2444 fps | 97% |
| Somchem S385 | <<locked>> | 96% | 45,513 psi | 73% | 2769 fps | 95.6% |
| Unknown powder | <<locked>> | 80% | 34,722 psi | 56% | 2552 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 48,979 psi | 79% | 2671 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,976 psi | 72% | 2664 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,310 psi | 73% | 2671 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,333 psi | 60% | 2543 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 33,388 psi | 54% | 2497 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 50,749 psi | 81% | 2789 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,801 psi | 70% | 2664 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 35,288 psi | 57% | 2556 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 88% | 32,329 psi | 52% | 2549 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,025 psi | 53% | 2474 fps | 97.5% |
| Winchester 760 | <<locked>> | 84% | 42,467 psi | 68% | 2736 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 92% | 29,834 psi | 48% | 2556 fps | 96.4% |
| Winchester Supreme 780 | <<locked>> | 98% | 50,357 psi | 81% | 2841 fps | 95.6% |
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 | 165gr | Barnes Solid. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,015 fps; across all powders the maximum-charge window runs from 1,788 fps to 3,015 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 57–90 %, leaving at least 10 % headroom. The 165.0 gr projectile in 0.308" calls for a 1:11.0 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 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .300 H&H Mag. with the .308 | 165gr | Barnes Solid 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.