Load Specifications
Load data in caliber .300 H&H Mag. with .308 | 167gr | Peregrine Plainsmaster (VLR-4) bullet and 99 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.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 55,259 psi | 89% | 2772 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 53,969 psi | 87% | 2795 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,869 psi | 90% | 2864 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,055 psi | 85% | 2802 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,121 psi | 72% | 2759 fps | 97.5% |
| Accurate 4064 | <<locked>> | 88% | 54,418 psi | 87% | 2848 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,882 psi | 88% | 2943 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 54,447 psi | 87% | 2877 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,666 psi | 89% | 2881 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,982 psi | 85% | 2920 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 53,490 psi | 86% | 2828 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,737 psi | 88% | 2802 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,607 psi | 88% | 3002 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,794 psi | 85% | 2917 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,927 psi | 90% | 2904 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 52,939 psi | 85% | 2874 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,985 psi | 90% | 3002 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 53,519 psi | 86% | 2976 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,011 psi | 83% | 2907 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,728 psi | 69% | 2785 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,544 psi | 78% | 2966 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,549 psi | 87% | 2897 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 52,953 psi | 85% | 2867 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,376 psi | 90% | 2894 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,853 psi | 88% | 2808 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 52,866 psi | 85% | 2854 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,954 psi | 87% | 2884 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 94% | 54,012 psi | 87% | 2940 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 92% | 54,244 psi | 87% | 2900 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 84% | 55,013 psi | 88% | 2887 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,043 psi | 90% | 2923 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,042 psi | 88% | 2923 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,230 psi | 87% | 2972 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,621 psi | 57% | 1778 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,362 psi | 90% | 2894 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,361 psi | 89% | 2867 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,158 psi | 88% | 2864 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,911 psi | 88% | 2848 fps | 98.3% |
| IMR 4350 | <<locked>> | 96% | 53,606 psi | 86% | 2871 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,911 psi | 88% | 2874 fps | 98.2% |
| IMR 4831 | <<locked>> | 98% | 55,361 psi | 89% | 2933 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 54,331 psi | 87% | 2904 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 53,490 psi | 86% | 2828 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,505 psi | 87% | 2854 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 53,911 psi | 86% | 2805 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,926 psi | 88% | 2858 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,302 psi | 87% | 2864 fps | 99.2% |
| Lovex S070 | <<locked>> | 96% | 55,550 psi | 89% | 2907 fps | 98.6% |
| Norma 201 | <<locked>> | 84% | 53,127 psi | 85% | 2822 fps | 100% |
| Norma 202 | <<locked>> | 84% | 53,838 psi | 86% | 2822 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,753 psi | 89% | 2913 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,273 psi | 87% | 2920 fps | 96.6% |
| Norma MRPᴾ | <<locked>> | 100% | 47,993 psi | 77% | 2917 fps | 97.1% |
| Norma URP | <<locked>> | 96% | 53,954 psi | 87% | 2930 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 56,405 psi | 90% | 2940 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,347 psi | 90% | 2982 fps | 99.2% |
| Ramshot TAC | <<locked>> | 82% | 53,461 psi | 86% | 2844 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 53,432 psi | 86% | 2867 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,260 psi | 58% | 1821 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,172 psi | 87% | 2867 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 53,519 psi | 86% | 2940 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,243 psi | 85% | 2976 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,737 psi | 88% | 2966 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,824 psi | 86% | 2992 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 82% | 53,867 psi | 86% | 2802 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,722 psi | 86% | 2822 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 52,808 psi | 85% | 2858 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,879 psi | 82% | 2890 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 94% | 56,376 psi | 90% | 2894 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,302 psi | 87% | 2864 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,505 psi | 87% | 2854 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,926 psi | 88% | 2858 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,550 psi | 89% | 2907 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,853 psi | 88% | 2923 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,811 psi | 89% | 2884 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,026 psi | 85% | 2851 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,404 psi | 87% | 2759 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,100 psi | 88% | 2762 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,563 psi | 87% | 2822 fps | 98.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,401 psi | 81% | 2884 fps | 96.2% |
| Somchem S335 | <<locked>> | 84% | 53,954 psi | 87% | 2759 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,579 psi | 89% | 2874 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 53,316 psi | 85% | 2861 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,912 psi | 90% | 2982 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,430 psi | 82% | 2867 fps | 97.3% |
| Vihtavuori N133 | <<locked>> | 84% | 54,824 psi | 88% | 2743 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 53,679 psi | 86% | 2785 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,549 psi | 87% | 2805 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,737 psi | 88% | 2838 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,391 psi | 90% | 2927 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 53,853 psi | 86% | 2828 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,260 psi | 90% | 2848 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,288 psi | 89% | 2930 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,616 psi | 76% | 2867 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,376 psi | 90% | 2900 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,157 psi | 87% | 2874 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,288 psi | 87% | 2943 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,305 psi | 61% | 2805 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 52,852 psi | 85% | 2854 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% | 51,880 psi | 83% | 2726 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,353 psi | 71% | 2651 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,214 psi | 84% | 2812 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,511 psi | 70% | 2631 fps | 95% |
| Accurate 3100 | <<locked>> | 96% | 39,218 psi | 63% | 2641 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 41,974 psi | 67% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 33,373 psi | 54% | 2530 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 47,892 psi | 77% | 2769 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 40,669 psi | 65% | 2618 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 98% | 49,676 psi | 80% | 2861 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,053 psi | 80% | 2776 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,213 psi | 82% | 2756 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,164 psi | 71% | 2818 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 49,313 psi | 79% | 2858 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,509 psi | 65% | 2638 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,468 psi | 70% | 2707 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 82% | 33,460 psi | 54% | 2546 fps | 95.8% |
| Alliant Reloder-17 | 56.9 gr | 80% | 35,186 psi | 56% | 2615 fps | 98.2% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,631 psi | 78% | 2848 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,124 psi | 47% | 2451 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,649 psi | 54% | 2628 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,616 psi | 76% | 2782 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 40,306 psi | 65% | 2644 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 43,772 psi | 70% | 2674 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,648 psi | 83% | 2762 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,472 psi | 79% | 2802 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,089 psi | 66% | 2651 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 41,104 psi | 66% | 2700 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 88% | 47,732 psi | 77% | 2785 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 48,370 psi | 78% | 2782 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,848 psi | 46% | 2388 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,672 psi | 72% | 2756 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 43,540 psi | 70% | 2779 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,614 psi | 43% | 1591 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,601 psi | 75% | 2733 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 48,573 psi | 78% | 2769 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,728 psi | 69% | 2651 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,324 psi | 73% | 2680 fps | 96.4% |
| IMR 4350 | <<locked>> | 90% | 44,382 psi | 71% | 2707 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,888 psi | 69% | 2657 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 32,329 psi | 52% | 2487 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 44,614 psi | 72% | 2736 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 50,053 psi | 80% | 2776 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,485 psi | 76% | 2749 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,747 psi | 77% | 2707 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,815 psi | 69% | 2654 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 37,376 psi | 60% | 2546 fps | 95.6% |
| Lovex S070 | <<locked>> | 86% | 40,393 psi | 65% | 2631 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 46,905 psi | 75% | 2720 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,282 psi | 76% | 2723 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,830 psi | 69% | 2694 fps | 99.2% |
| Norma 204 | <<locked>> | 94% | 50,618 psi | 81% | 2858 fps | 95.8% |
| Norma MRP | <<locked>> | 96% | 41,800 psi | 67% | 2792 fps | 95.3% |
| Norma URP | <<locked>> | 82% | 33,736 psi | 54% | 2533 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 42,888 psi | 69% | 2713 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 37,623 psi | 60% | 2631 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 50,154 psi | 80% | 2792 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,777 psi | 80% | 2805 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,876 psi | 43% | 1627 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,437 psi | 66% | 2635 fps | 96% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,528 psi | 75% | 2822 fps | 99.4% |
| ReloadSwiss RS 60 | 56.9 gr | 80% | 37,521 psi | 60% | 2684 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,112 psi | 53% | 2543 fps | 95.1% |
| ReloadSwiss RS 70 | 60.7 gr | 84% | 35,505 psi | 57% | 2615 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 50,662 psi | 81% | 2753 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,541 psi | 71% | 2671 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,840 psi | 61% | 2585 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 98% | 47,413 psi | 76% | 2828 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 86% | 43,772 psi | 70% | 2674 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,376 psi | 60% | 2546 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,485 psi | 76% | 2749 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,815 psi | 69% | 2654 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,393 psi | 65% | 2631 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,131 psi | 63% | 2641 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,573 psi | 78% | 2766 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,499 psi | 75% | 2743 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,109 psi | 77% | 2667 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,219 psi | 64% | 2533 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,800 psi | 67% | 2598 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,963 psi | 75% | 2822 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 47,790 psi | 77% | 2667 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,443 psi | 78% | 2762 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,725 psi | 62% | 2595 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 28,079 psi | 45% | 2421 fps | 96.9% |
| Somchem S385 | <<locked>> | 96% | 45,034 psi | 72% | 2753 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 48,602 psi | 78% | 2657 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,411 psi | 71% | 2648 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,802 psi | 72% | 2654 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,738 psi | 59% | 2526 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 32,822 psi | 53% | 2480 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 80% | 50,299 psi | 81% | 2772 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,236 psi | 69% | 2648 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 34,650 psi | 56% | 2536 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 88% | 31,604 psi | 51% | 2526 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,576 psi | 52% | 2457 fps | 97.5% |
| Winchester 748 | <<locked>> | 80% | 50,589 psi | 81% | 2822 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 41,321 psi | 66% | 2707 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 92% | 29,225 psi | 47% | 2533 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,238 psi | 74% | 2746 fps | 99.8% |
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 99 powders for .300 H&H Mag. loaded with the .308 | 167gr | Peregrine Plainsmaster (VLR-4). Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,002 fps; across all powders the maximum-charge window runs from 1,778 fps to 3,002 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 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 167.0 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 | 167gr | Peregrine Plainsmaster (VLR-4) 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.