Load Specifications
Load data in caliber .308 Norma Mag. with .311 | 190gr | Prvi Partizan FMJ BT bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 and Hodgdon Superformance.
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 2495 | <<locked>> | 82% | 55,187 psi | 86% | 2641 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,420 psi | 88% | 2713 fps | 99.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,114 psi | 85% | 2759 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 55,695 psi | 87% | 2697 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,347 psi | 88% | 2805 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 56,014 psi | 88% | 2894 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 86% | 55,680 psi | 87% | 2730 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 57,232 psi | 90% | 2848 fps | 98.7% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,781 psi | 86% | 2841 fps | 97.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,940 psi | 86% | 2848 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,305 psi | 90% | 2844 fps | 98.7% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,305 psi | 90% | 2844 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,521 psi | 89% | 2749 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,811 psi | 89% | 2772 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,971 psi | 89% | 2854 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,563 psi | 86% | 2828 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,550 psi | 89% | 2838 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,664 psi | 84% | 2838 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,865 psi | 80% | 2772 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,179 psi | 69% | 2703 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,404 psi | 85% | 2910 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,182 psi | 77% | 2762 fps | 97.5% |
| Bofors RP3 | <<locked>> | 86% | 57,450 psi | 90% | 2766 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,664 psi | 84% | 2838 fps | 98.4% |
| Bofors RP7 | <<locked>> | 90% | 56,710 psi | 89% | 2756 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 86% | 57,667 psi | 90% | 2782 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 54,955 psi | 86% | 2805 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 88% | 54,650 psi | 86% | 2762 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 98% | 55,071 psi | 86% | 2789 fps | 96.7% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 57,508 psi | 90% | 2825 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 57,290 psi | 90% | 2779 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,361 psi | 87% | 2766 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,134 psi | 68% | 2730 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 90% | 54,839 psi | 86% | 2838 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,448 psi | 57% | 1693 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,086 psi | 88% | 2730 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,027 psi | 86% | 2710 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,682 psi | 90% | 2746 fps | 99.6% |
| IMR 4350 | <<locked>> | 94% | 57,464 psi | 90% | 2785 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,839 psi | 86% | 2730 fps | 99.3% |
| IMR 4831 | <<locked>> | 94% | 56,753 psi | 89% | 2795 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,708 psi | 86% | 2749 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,608 psi | 89% | 2776 fps | 97.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,315 psi | 82% | 2815 fps | 96.9% |
| Lovex S060 | <<locked>> | 82% | 56,579 psi | 89% | 2694 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,448 psi | 87% | 2707 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,027 psi | 86% | 2726 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 56,144 psi | 88% | 2769 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,962 psi | 70% | 2615 fps | 98.7% |
| Norma 201 | <<locked>> | 82% | 56,579 psi | 89% | 2713 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,290 psi | 90% | 2707 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,101 psi | 88% | 2759 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,795 psi | 86% | 2789 fps | 98.2% |
| Norma MRPᴾ | <<locked>> | 100% | 57,130 psi | 90% | 2923 fps | 99.7% |
| Norma URP | <<locked>> | 92% | 54,940 psi | 86% | 2789 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,913 psi | 89% | 2785 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,605 psi | 82% | 2828 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 94% | 57,290 psi | 90% | 2841 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,818 psi | 73% | 2707 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,231 psi | 58% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 57,508 psi | 90% | 2769 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,186 psi | 85% | 2822 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 56,246 psi | 88% | 2828 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,621 psi | 86% | 2854 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,178 psi | 68% | 2726 fps | 97.8% |
| Rottweil R 902 | <<locked>> | 84% | 57,464 psi | 90% | 2717 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,551 psi | 90% | 2762 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,201 psi | 87% | 2762 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 98% | 55,811 psi | 87% | 2822 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 90% | 56,710 psi | 89% | 2756 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,027 psi | 86% | 2726 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 55,448 psi | 87% | 2707 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,144 psi | 88% | 2769 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,390 psi | 87% | 2769 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,333 psi | 88% | 2743 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,493 psi | 90% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,897 psi | 86% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,650 psi | 86% | 2684 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,332 psi | 87% | 2818 fps | 98.6% |
| Somchem S335 | <<locked>> | 82% | 57,014 psi | 89% | 2638 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,276 psi | 90% | 2756 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 57,000 psi | 89% | 2759 fps | 97% |
| Somchem S365 | <<locked>> | 94% | 54,157 psi | 85% | 2789 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,318 psi | 88% | 2799 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 82% | 54,404 psi | 85% | 2628 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,389 psi | 85% | 2641 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,187 psi | 86% | 2687 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 57,130 psi | 90% | 2782 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,127 psi | 82% | 2720 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 84% | 56,014 psi | 88% | 2684 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,173 psi | 88% | 2789 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,782 psi | 89% | 2848 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,435 psi | 90% | 2913 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,782 psi | 89% | 2753 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,955 psi | 86% | 2805 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,759 psi | 72% | 2831 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,652 psi | 89% | 2753 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,753 psi | 89% | 2795 fps | 98.6% |
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% | 51,953 psi | 81% | 2598 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,501 psi | 78% | 2608 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 33,605 psi | 53% | 2382 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 49,211 psi | 77% | 2605 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,492 psi | 59% | 2484 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 98% | 52,344 psi | 82% | 2838 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 46,195 psi | 72% | 2579 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 41,350 psi | 65% | 2569 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 47,950 psi | 75% | 2723 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,155 psi | 80% | 2789 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 41,423 psi | 65% | 2572 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 41,423 psi | 65% | 2572 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,876 psi | 73% | 2605 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,009 psi | 78% | 2671 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,448 psi | 57% | 2490 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,336 psi | 65% | 2608 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 40,973 psi | 64% | 2562 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,176 psi | 65% | 2612 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,818 psi | 42% | 2257 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,271 psi | 51% | 2425 fps | 95.6% |
| Alliant Reloder-26 | 61.2 gr | 82% | 30,458 psi | 48% | 2418 fps | 95.7% |
| Bofors RP15 | <<locked>> | 94% | 40,596 psi | 64% | 2598 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 47,210 psi | 74% | 2618 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 41,176 psi | 65% | 2612 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 41,408 psi | 65% | 2493 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 47,514 psi | 74% | 2628 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 39,334 psi | 62% | 2526 fps | 96.6% |
| Hodgdon H4350 | <<locked>> | 80% | 42,337 psi | 66% | 2546 fps | 96% |
| Hodgdon H4831 | <<locked>> | 94% | 47,979 psi | 75% | 2674 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,314 psi | 79% | 2713 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,113 psi | 53% | 2388 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,909 psi | 81% | 2717 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,640 psi | 64% | 2671 fps | 95.7% |
| Hodgdon Superformance | 61.6 gr | 80% | 38,247 psi | 60% | 2533 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 43% | 1512 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,634 psi | 82% | 2680 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,602 psi | 76% | 2612 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,879 psi | 80% | 2641 fps | 98.9% |
| IMR 4350 | <<locked>> | 80% | 37,217 psi | 58% | 2425 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,873 psi | 67% | 2523 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 36,013 psi | 56% | 2434 fps | 98.2% |
| IMR 4895 | <<locked>> | 80% | 51,314 psi | 80% | 2697 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,065 psi | 74% | 2621 fps | 95% |
| IMR 7828 SSC | <<locked>> | 96% | 45,818 psi | 72% | 2697 fps | 95.2% |
| Lovex S060 | <<locked>> | 80% | 53,417 psi | 84% | 2648 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,037 psi | 77% | 2612 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,509 psi | 63% | 2477 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 38,711 psi | 61% | 2461 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 32,648 psi | 51% | 2359 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 53,345 psi | 84% | 2664 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,983 psi | 85% | 2664 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,400 psi | 77% | 2661 fps | 100% |
| Norma 204 | <<locked>> | 84% | 41,901 psi | 66% | 2562 fps | 95.3% |
| Norma MRP | <<locked>> | 88% | 37,782 psi | 59% | 2569 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 37,289 psi | 58% | 2477 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 49,617 psi | 78% | 2680 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 45,585 psi | 71% | 2707 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 36,100 psi | 57% | 2464 fps | 96.5% |
| Ramshot Magnum | <<locked>> | 96% | 40,582 psi | 64% | 2585 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,789 psi | 44% | 1549 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,442 psi | 74% | 2612 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,903 psi | 69% | 2661 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,101 psi | 58% | 2497 fps | 98.2% |
| ReloadSwiss RS 70 | 59.2 gr | 80% | 36,085 psi | 57% | 2503 fps | 97.6% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,565 psi | 59% | 2595 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 50,821 psi | 80% | 2621 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,483 psi | 70% | 2566 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,687 psi | 72% | 2605 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 40,147 psi | 63% | 2549 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 41,408 psi | 65% | 2493 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,509 psi | 63% | 2477 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 49,037 psi | 77% | 2612 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,711 psi | 61% | 2461 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,513 psi | 71% | 2618 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,910 psi | 83% | 2694 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,114 psi | 85% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,788 psi | 72% | 2474 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,566 psi | 62% | 2425 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,769 psi | 62% | 2543 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 53,838 psi | 84% | 2598 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,788 psi | 70% | 2566 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,096 psi | 79% | 2651 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 33,736 psi | 53% | 2438 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 38,189 psi | 60% | 2480 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 51,140 psi | 80% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,227 psi | 80% | 2598 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,743 psi | 67% | 2497 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,696 psi | 61% | 2477 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 40,045 psi | 63% | 2510 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 49,429 psi | 77% | 2595 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,145 psi | 60% | 2477 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 29,486 psi | 46% | 2329 fps | 96.6% |
| Vihtavuori N560 | <<locked>> | 94% | 46,731 psi | 73% | 2733 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,710 psi | 59% | 2448 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 39,508 psi | 62% | 2526 fps | 96.6% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,208 psi | 40% | 2287 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,953 psi | 83% | 2700 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,975 psi | 67% | 2572 fps | 95.8% |
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 98 powders for .308 Norma Mag. loaded with the .311 | 190gr | Prvi Partizan FMJ BT. Norma MRP delivers the highest muzzle velocity at 2,923 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,923 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 190.0 gr projectile in 0.311" calls for a 1:13.0 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. Alliant Reloder-26, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for .308 Norma Mag. with the .311 | 190gr | Prvi Partizan FMJ BT 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.