Load Specifications
Load data in caliber .308 Norma Mag. with .311 | 180gr | Sierra Pro-Hunter 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-26 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 54,795 psi | 86% | 2717 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,898 psi | 88% | 2785 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,563 psi | 84% | 2828 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 55,201 psi | 87% | 2772 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,695 psi | 87% | 2874 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 54,607 psi | 86% | 2966 fps | 97.3% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 55,579 psi | 87% | 2966 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 82% | 57,363 psi | 90% | 2844 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,143 psi | 86% | 2802 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 56,855 psi | 89% | 2920 fps | 98.4% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,215 psi | 85% | 2907 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,331 psi | 85% | 2920 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,912 psi | 88% | 2825 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,217 psi | 88% | 2848 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,463 psi | 88% | 2933 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 53,896 psi | 84% | 2900 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,883 psi | 88% | 2904 fps | 98.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,040 psi | 83% | 2904 fps | 98% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,169 psi | 79% | 2841 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,787 psi | 69% | 2769 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,708 psi | 84% | 2979 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 57,450 psi | 90% | 2867 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,747 psi | 76% | 2831 fps | 97% |
| Bofors RP3 | <<locked>> | 86% | 56,913 psi | 89% | 2841 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,040 psi | 83% | 2904 fps | 98% |
| Bofors RP7 | <<locked>> | 90% | 56,188 psi | 88% | 2828 fps | 99% |
| Hodgdon H380 | <<locked>> | 86% | 57,348 psi | 90% | 2861 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 54,331 psi | 85% | 2874 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 90% | 57,711 psi | 90% | 2887 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 98% | 54,592 psi | 86% | 2858 fps | 96.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 56,913 psi | 89% | 2894 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,942 psi | 89% | 2854 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,897 psi | 86% | 2841 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,317 psi | 85% | 2907 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,434 psi | 57% | 1752 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,666 psi | 87% | 2805 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,578 psi | 86% | 2785 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,319 psi | 90% | 2822 fps | 99.4% |
| IMR 4350 | <<locked>> | 94% | 57,087 psi | 89% | 2861 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,404 psi | 85% | 2802 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 56,101 psi | 88% | 2867 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 57,682 psi | 90% | 2874 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,246 psi | 88% | 2848 fps | 96.7% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,793 psi | 81% | 2881 fps | 96.3% |
| Lovex S060 | <<locked>> | 82% | 56,289 psi | 88% | 2769 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,766 psi | 86% | 2776 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,462 psi | 85% | 2799 fps | 99.7% |
| Lovex S070 | <<locked>> | 92% | 55,695 psi | 87% | 2838 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,527 psi | 70% | 2677 fps | 98.4% |
| Norma 201 | <<locked>> | 82% | 56,217 psi | 88% | 2789 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,898 psi | 89% | 2785 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,506 psi | 87% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,288 psi | 85% | 2858 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 56,550 psi | 89% | 2992 fps | 99.5% |
| Norma URP | <<locked>> | 92% | 54,404 psi | 85% | 2861 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,202 psi | 88% | 2858 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,083 psi | 82% | 2897 fps | 96.7% |
| Ramshot Hunter | <<locked>> | 94% | 56,913 psi | 89% | 2917 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,267 psi | 73% | 2769 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,173 psi | 58% | 1795 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 57,116 psi | 90% | 2844 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,377 psi | 90% | 2917 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 57,319 psi | 90% | 2946 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,622 psi | 87% | 2900 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 53,969 psi | 85% | 2923 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,627 psi | 67% | 2782 fps | 97.1% |
| Rottweil R 902 | <<locked>> | 84% | 56,768 psi | 89% | 2789 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,000 psi | 89% | 2838 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,810 psi | 86% | 2835 fps | 97% |
| Rottweil R 905 | <<locked>> | 98% | 55,201 psi | 87% | 2890 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 90% | 56,188 psi | 88% | 2828 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,462 psi | 85% | 2799 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 54,766 psi | 86% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,695 psi | 87% | 2838 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,795 psi | 86% | 2844 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,999 psi | 88% | 2818 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,087 psi | 89% | 2720 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,549 psi | 85% | 2677 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,041 psi | 85% | 2749 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,723 psi | 86% | 2887 fps | 98.2% |
| Somchem S335 | <<locked>> | 82% | 56,724 psi | 89% | 2717 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,855 psi | 89% | 2831 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 56,681 psi | 89% | 2828 fps | 96.5% |
| Somchem S365 | <<locked>> | 96% | 57,290 psi | 90% | 2913 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,883 psi | 88% | 2871 fps | 99% |
| Vihtavuori N133 | <<locked>> | 82% | 57,566 psi | 90% | 2700 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 57,188 psi | 90% | 2746 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 57,392 psi | 90% | 2762 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,679 psi | 86% | 2759 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,536 psi | 89% | 2854 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,634 psi | 81% | 2789 fps | 98% |
| Vihtavuori N540 | <<locked>> | 84% | 55,608 psi | 87% | 2759 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,738 psi | 87% | 2861 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,333 psi | 88% | 2920 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 56,884 psi | 89% | 2982 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,362 psi | 88% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,331 psi | 85% | 2874 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,310 psi | 71% | 2900 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,941 psi | 88% | 2825 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,057 psi | 88% | 2864 fps | 98.2% |
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 2495 | <<locked>> | 80% | 51,430 psi | 81% | 2671 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,008 psi | 77% | 2674 fps | 97.7% |
| Accurate 3100 | <<locked>> | 86% | 33,228 psi | 52% | 2438 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 48,704 psi | 76% | 2677 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,985 psi | 58% | 2539 fps | 98% |
| Accurate High Country | <<locked>> | 94% | 47,485 psi | 74% | 2841 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 98% | 51,808 psi | 81% | 2900 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 53,954 psi | 85% | 2795 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,832 psi | 72% | 2648 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,642 psi | 68% | 2687 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 98% | 50,836 psi | 80% | 2848 fps | 95.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,720 psi | 79% | 2864 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,412 psi | 73% | 2674 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,458 psi | 78% | 2743 fps | 100% |
| Alliant Reloder-16 | 55.9 gr | 80% | 36,085 psi | 57% | 2552 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,828 psi | 64% | 2674 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,308 psi | 68% | 2684 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,511 psi | 68% | 2733 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,513 psi | 42% | 2310 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,011 psi | 53% | 2536 fps | 95.8% |
| Alliant Reloder-26 | 64.8 gr | 84% | 32,343 psi | 51% | 2536 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,853 psi | 84% | 2812 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 42,757 psi | 67% | 2713 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 46,572 psi | 73% | 2684 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,511 psi | 68% | 2733 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 41,176 psi | 65% | 2559 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 47,123 psi | 74% | 2697 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 38,899 psi | 61% | 2585 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 41,829 psi | 66% | 2608 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 96% | 50,937 psi | 80% | 2799 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 49,792 psi | 78% | 2779 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,576 psi | 53% | 2444 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,314 psi | 80% | 2789 fps | 100% |
| Hodgdon Superformance | <<locked>> | 80% | 37,942 psi | 59% | 2595 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,122 psi | 43% | 1562 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,127 psi | 82% | 2753 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,182 psi | 76% | 2684 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,575 psi | 79% | 2713 fps | 98.6% |
| IMR 4350 | <<locked>> | 82% | 39,146 psi | 61% | 2536 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,467 psi | 67% | 2589 fps | 96.8% |
| IMR 4831 | <<locked>> | 80% | 35,520 psi | 56% | 2493 fps | 97.7% |
| IMR 4895 | <<locked>> | 80% | 50,720 psi | 79% | 2769 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,574 psi | 78% | 2740 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 98% | 48,327 psi | 76% | 2818 fps | 95.4% |
| Lovex S060 | <<locked>> | 80% | 52,968 psi | 83% | 2723 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,588 psi | 76% | 2684 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,118 psi | 63% | 2543 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 38,319 psi | 60% | 2520 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 34,360 psi | 54% | 2467 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 52,881 psi | 83% | 2740 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,476 psi | 84% | 2736 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,863 psi | 77% | 2726 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,208 psi | 69% | 2680 fps | 95.5% |
| Norma MRP | <<locked>> | 88% | 37,333 psi | 59% | 2628 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 36,854 psi | 58% | 2536 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 49,211 psi | 77% | 2753 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,486 psi | 76% | 2831 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 35,708 psi | 56% | 2523 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 96% | 40,103 psi | 63% | 2644 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,659 psi | 43% | 1601 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,007 psi | 74% | 2680 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,563 psi | 84% | 2861 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,381 psi | 68% | 2730 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,782 psi | 58% | 2559 fps | 97.7% |
| ReloadSwiss RS 70 | 61.2 gr | 80% | 35,781 psi | 56% | 2566 fps | 97% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,813 psi | 62% | 2717 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 50,401 psi | 79% | 2694 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,947 psi | 69% | 2635 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,341 psi | 76% | 2723 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 90% | 42,337 psi | 66% | 2664 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 41,176 psi | 65% | 2559 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,118 psi | 63% | 2543 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 48,588 psi | 76% | 2684 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,319 psi | 60% | 2520 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,034 psi | 71% | 2684 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,446 psi | 82% | 2766 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,577 psi | 84% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,281 psi | 71% | 2543 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,146 psi | 61% | 2484 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,974 psi | 66% | 2661 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 53,388 psi | 84% | 2674 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,338 psi | 69% | 2635 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 53,113 psi | 83% | 2776 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 33,272 psi | 52% | 2493 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 40,234 psi | 63% | 2592 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 54,114 psi | 85% | 2654 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,546 psi | 79% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,734 psi | 80% | 2671 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,264 psi | 66% | 2562 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,203 psi | 60% | 2536 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 39,581 psi | 62% | 2569 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 49,052 psi | 77% | 2667 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,739 psi | 59% | 2539 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 29,080 psi | 46% | 2382 fps | 95.8% |
| Vihtavuori N560 | <<locked>> | 96% | 49,617 psi | 78% | 2858 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,376 psi | 59% | 2507 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 39,102 psi | 61% | 2589 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,947 psi | 39% | 2329 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,402 psi | 82% | 2772 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,395 psi | 66% | 2631 fps | 95.1% |
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 107 powders for .308 Norma Mag. loaded with the .311 | 180gr | Sierra Pro-Hunter. Norma MRP delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,752 fps to 2,992 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.311" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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-26, Alliant Reloder-16 rank at the top here: for .308 Norma Mag. with the .311 | 180gr | Sierra Pro-Hunter they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.