Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 170gr | Impala RNFP KO bullet and 91 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.
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 2495 | <<locked>> | 82% | 56,231 psi | 88% | 2789 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,999 psi | 88% | 2835 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,925 psi | 85% | 2881 fps | 99.2% |
| Accurate 4064 | <<locked>> | 84% | 56,333 psi | 88% | 2838 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,014 psi | 88% | 2933 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 57,508 psi | 90% | 2904 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 54,911 psi | 86% | 2851 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 56,159 psi | 88% | 2963 fps | 97.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 57,682 psi | 90% | 3031 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,956 psi | 88% | 2881 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,304 psi | 88% | 2904 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,782 psi | 87% | 2979 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 57,130 psi | 90% | 3009 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,550 psi | 87% | 2953 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,678 psi | 83% | 2949 fps | 97.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,893 psi | 78% | 2894 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,990 psi | 69% | 2815 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 56,971 psi | 89% | 3087 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 57,276 psi | 90% | 2920 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,631 psi | 76% | 2877 fps | 96.1% |
| Bofors RP3 | <<locked>> | 86% | 57,348 psi | 90% | 2904 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,678 psi | 83% | 2949 fps | 97.2% |
| Bofors RP7 | <<locked>> | 90% | 56,391 psi | 88% | 2877 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 86% | 57,363 psi | 90% | 2913 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 57,493 psi | 90% | 2976 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 90% | 57,290 psi | 90% | 2933 fps | 98.1% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 57,682 psi | 90% | 2953 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,173 psi | 88% | 2904 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,694 psi | 86% | 2897 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 57,667 psi | 90% | 3012 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,622 psi | 57% | 1791 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,390 psi | 87% | 2858 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,679 psi | 86% | 2838 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,174 psi | 90% | 2867 fps | 98.9% |
| IMR 4350 | <<locked>> | 94% | 56,753 psi | 89% | 2904 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 57,566 psi | 90% | 2900 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 56,086 psi | 88% | 2920 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 57,653 psi | 90% | 2930 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 56,028 psi | 88% | 2822 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,259 psi | 87% | 2838 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,607 psi | 86% | 2851 fps | 99.4% |
| Lovex S070 | <<locked>> | 92% | 55,854 psi | 88% | 2890 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,194 psi | 71% | 2733 fps | 97.8% |
| Norma 201 | <<locked>> | 82% | 56,608 psi | 89% | 2848 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,130 psi | 90% | 2844 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,579 psi | 87% | 2887 fps | 100% |
| Norma 204 | <<locked>> | 94% | 57,435 psi | 90% | 2956 fps | 97.6% |
| Norma MRPᴾ | <<locked>> | 100% | 55,753 psi | 87% | 3035 fps | 98.9% |
| Norma URP | <<locked>> | 94% | 57,653 psi | 90% | 2963 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,057 psi | 88% | 2913 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 56,362 psi | 88% | 2966 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,528 psi | 73% | 2812 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,449 psi | 59% | 1834 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 57,014 psi | 89% | 2894 fps | 99.3% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,072 psi | 89% | 2969 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,594 psi | 89% | 3002 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,274 psi | 87% | 2949 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 57,421 psi | 90% | 3031 fps | 100% |
| Rottweil R 902 | <<locked>> | 84% | 57,392 psi | 90% | 2851 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,159 psi | 90% | 2894 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,476 psi | 85% | 2877 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 98% | 54,694 psi | 86% | 2936 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 90% | 56,391 psi | 88% | 2877 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,607 psi | 86% | 2851 fps | 99.4% |
| Shooters World Precision | <<locked>> | 84% | 55,259 psi | 87% | 2838 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,854 psi | 88% | 2890 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,708 psi | 86% | 2897 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,883 psi | 88% | 2871 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,203 psi | 90% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,462 psi | 85% | 2733 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,505 psi | 85% | 2802 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,201 psi | 85% | 2930 fps | 97.4% |
| Somchem S335 | <<locked>> | 82% | 56,869 psi | 89% | 2772 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,087 psi | 89% | 2890 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 56,826 psi | 89% | 2969 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,724 psi | 87% | 2917 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 82% | 57,537 psi | 90% | 2756 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 57,493 psi | 90% | 2808 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 57,566 psi | 90% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,636 psi | 86% | 2815 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,217 psi | 88% | 2907 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,372 psi | 81% | 2835 fps | 97.3% |
| Vihtavuori N540 | <<locked>> | 84% | 55,796 psi | 87% | 2818 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,492 psi | 87% | 2910 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,144 psi | 88% | 2976 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 56,086 psi | 88% | 3018 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,811 psi | 87% | 2874 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,114 psi | 85% | 2923 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,527 psi | 71% | 2953 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,912 psi | 88% | 2881 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,651 psi | 87% | 2907 fps | 97.4% |
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% | 53,084 psi | 83% | 2743 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,356 psi | 77% | 2723 fps | 97% |
| Accurate 3100 | <<locked>> | 88% | 36,840 psi | 58% | 2562 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 50,212 psi | 79% | 2749 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,218 psi | 60% | 2612 fps | 97.7% |
| ADI AR 2206H | <<locked>> | 80% | 54,244 psi | 85% | 2851 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 46,050 psi | 72% | 2700 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 46,673 psi | 73% | 2792 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,444 psi | 79% | 2913 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,949 psi | 74% | 2733 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,937 psi | 78% | 2799 fps | 99.8% |
| Alliant Reloder-16 | 54.8 gr | 80% | 36,680 psi | 57% | 2605 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,133 psi | 64% | 2730 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 46,122 psi | 72% | 2782 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 46,572 psi | 73% | 2838 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,833 psi | 44% | 2379 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,809 psi | 55% | 2589 fps | 95% |
| Alliant Reloder-26 | 63.5 gr | 84% | 33,330 psi | 52% | 2598 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,780 psi | 84% | 2864 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 45,774 psi | 72% | 2818 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 47,558 psi | 75% | 2749 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 46,572 psi | 73% | 2838 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 41,814 psi | 66% | 2612 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 47,587 psi | 75% | 2753 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 39,566 psi | 62% | 2644 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 82% | 44,846 psi | 70% | 2713 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 54,128 psi | 85% | 2897 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,548 psi | 54% | 2510 fps | 98.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,271 psi | 80% | 2844 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 41,089 psi | 64% | 2707 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,572 psi | 43% | 1601 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,156 psi | 82% | 2808 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,443 psi | 76% | 2736 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,575 psi | 79% | 2759 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 42,192 psi | 66% | 2644 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,873 psi | 67% | 2638 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 36,535 psi | 57% | 2559 fps | 97.3% |
| IMR 4895 | <<locked>> | 80% | 51,140 psi | 80% | 2828 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 53,069 psi | 83% | 2776 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,255 psi | 77% | 2743 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,017 psi | 64% | 2602 fps | 97.1% |
| Lovex S070 | <<locked>> | 80% | 39,320 psi | 62% | 2582 fps | 95.4% |
| Lovex S071 | <<locked>> | 92% | 35,723 psi | 56% | 2536 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 53,577 psi | 84% | 2802 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,795 psi | 84% | 2799 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,327 psi | 77% | 2789 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 47,297 psi | 74% | 2785 fps | 95.5% |
| Norma MRP | <<locked>> | 90% | 40,451 psi | 63% | 2740 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 37,579 psi | 59% | 2598 fps | 97.4% |
| Ramshot Big Game | <<locked>> | 80% | 49,313 psi | 77% | 2805 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 80% | 36,303 psi | 57% | 2575 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 98% | 43,410 psi | 68% | 2749 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,007 psi | 44% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,572 psi | 75% | 2733 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,403 psi | 84% | 2913 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,526 psi | 68% | 2785 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,492 psi | 59% | 2621 fps | 97.2% |
| ReloadSwiss RS 70 | 60 gr | 80% | 36,463 psi | 57% | 2618 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 80% | 51,155 psi | 80% | 2756 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,976 psi | 70% | 2697 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 94% | 51,285 psi | 80% | 2822 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 92% | 45,310 psi | 71% | 2769 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 41,814 psi | 66% | 2612 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,017 psi | 64% | 2602 fps | 97.1% |
| Shooters World Precision | <<locked>> | 80% | 49,255 psi | 77% | 2743 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,320 psi | 62% | 2582 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,237 psi | 71% | 2740 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,475 psi | 82% | 2818 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,766 psi | 84% | 2726 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,614 psi | 71% | 2598 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,161 psi | 63% | 2543 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 44,875 psi | 70% | 2762 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 53,867 psi | 84% | 2733 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,136 psi | 71% | 2694 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 34,229 psi | 54% | 2559 fps | 99.3% |
| Somchem S385 | <<locked>> | 88% | 41,002 psi | 64% | 2651 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 54,172 psi | 85% | 2713 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,995 psi | 80% | 2717 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,010 psi | 80% | 2730 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,989 psi | 67% | 2625 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,841 psi | 61% | 2595 fps | 97.7% |
| Vihtavuori N165 | <<locked>> | 94% | 42,511 psi | 67% | 2671 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 49,400 psi | 77% | 2723 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,493 psi | 60% | 2598 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 80% | 30,414 psi | 48% | 2457 fps | 95.6% |
| Vihtavuori N560 | <<locked>> | 98% | 52,750 psi | 83% | 2963 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,971 psi | 60% | 2562 fps | 99.3% |
| Winchester 760 | <<locked>> | 80% | 39,566 psi | 62% | 2644 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 84% | 27,949 psi | 44% | 2467 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,431 psi | 82% | 2825 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 45,484 psi | 71% | 2733 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 105 powders for .308 Norma Mag. loaded with the .308 | 170gr | Impala RNFP KO. Alliant Reloder-26 delivers the highest muzzle velocity at 3,087 fps; across all powders the maximum-charge window runs from 1,791 fps to 3,087 fps. Accurate 3100 gives the best case fill at 100 %, and 105 of the 105 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:12.5 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 .308 | 170gr | Impala RNFP KO they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2225, Baschieri & Pellagri 109, Bofors RP30 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.