Load Specifications
Load data in caliber .308 Norma Mag. with .31 | 200gr | Lapua D166 bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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 2700 | <<locked>> | 82% | 55,709 psi | 87% | 2654 fps | 99.4% |
| Accurate 3100 | <<locked>> | 98% | 54,346 psi | 85% | 2703 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 55,477 psi | 87% | 2631 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 56,391 psi | 88% | 2743 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 56,565 psi | 89% | 2848 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 84% | 55,027 psi | 86% | 2661 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 57,101 psi | 89% | 2792 fps | 99.2% |
| ADI AR 2213 | <<locked>> | 98% | 54,839 psi | 86% | 2792 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,724 psi | 59% | 2526 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,130 psi | 88% | 2684 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,362 psi | 88% | 2707 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 57,232 psi | 90% | 2799 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,752 psi | 86% | 2766 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,550 psi | 89% | 2782 fps | 99.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,186 psi | 85% | 2792 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,853 psi | 86% | 2766 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,543 psi | 75% | 2713 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,998 psi | 86% | 2854 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,113 psi | 83% | 2772 fps | 98.8% |
| Bofors RP3 | <<locked>> | 84% | 57,043 psi | 89% | 2700 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 43,308 psi | 68% | 2638 fps | 96.3% |
| Bofors RP5 | <<locked>> | 98% | 54,186 psi | 85% | 2792 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 56,289 psi | 88% | 2697 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,920 psi | 74% | 2654 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 84% | 57,363 psi | 90% | 2723 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 54,897 psi | 86% | 2746 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 54,433 psi | 85% | 2707 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 96% | 54,969 psi | 86% | 2736 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 57,609 psi | 90% | 2776 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 57,493 psi | 90% | 2720 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,456 psi | 73% | 2756 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 88% | 54,824 psi | 86% | 2779 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,709 psi | 58% | 1663 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,723 psi | 86% | 2648 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,869 psi | 89% | 2680 fps | 99.8% |
| IMR 4350 | <<locked>> | 92% | 57,334 psi | 90% | 2730 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,418 psi | 85% | 2671 fps | 99.6% |
| IMR 4831 | <<locked>> | 92% | 56,652 psi | 89% | 2733 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,289 psi | 88% | 2723 fps | 97.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,869 psi | 88% | 2822 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 54,969 psi | 86% | 2638 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,737 psi | 86% | 2667 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 56,130 psi | 88% | 2713 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,515 psi | 76% | 2618 fps | 99.6% |
| Norma 203B | <<locked>> | 82% | 55,709 psi | 87% | 2694 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,491 psi | 85% | 2730 fps | 98.8% |
| Norma MRP | <<locked>> | 98% | 57,493 psi | 90% | 2867 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 55,143 psi | 86% | 2730 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 56,521 psi | 89% | 2720 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,608 psi | 89% | 2844 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 92% | 57,392 psi | 90% | 2785 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,720 psi | 79% | 2726 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,521 psi | 59% | 1706 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 57,159 psi | 90% | 2707 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,157 psi | 85% | 2753 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 56,333 psi | 88% | 2769 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,578 psi | 86% | 2795 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,412 psi | 73% | 2749 fps | 99.3% |
| Rottweil R 902 | <<locked>> | 82% | 56,869 psi | 89% | 2648 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 57,145 psi | 90% | 2697 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,085 psi | 86% | 2710 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 96% | 55,970 psi | 88% | 2769 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 88% | 56,289 psi | 88% | 2697 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,737 psi | 86% | 2667 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 54,969 psi | 86% | 2638 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,130 psi | 88% | 2713 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,027 psi | 86% | 2707 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,505 psi | 85% | 2539 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 57,711 psi | 90% | 2674 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,506 psi | 87% | 2766 fps | 99.1% |
| Somchem S355 | <<locked>> | 86% | 57,087 psi | 89% | 2694 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,782 psi | 89% | 2707 fps | 97.7% |
| Somchem S365 | <<locked>> | 92% | 54,650 psi | 86% | 2730 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 56,420 psi | 88% | 2743 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 82% | 57,377 psi | 90% | 2605 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 57,319 psi | 90% | 2618 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 54,665 psi | 86% | 2621 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,913 psi | 89% | 2720 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,724 psi | 87% | 2720 fps | 99.4% |
| Vihtavuori N540 | <<locked>> | 82% | 55,463 psi | 87% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,999 psi | 88% | 2726 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 57,537 psi | 90% | 2792 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 57,624 psi | 90% | 2861 fps | 98.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,559 psi | 78% | 2720 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,536 psi | 89% | 2687 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,897 psi | 86% | 2746 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,836 psi | 80% | 2841 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 56,594 psi | 89% | 2743 fps | 99.1% |
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 2700 | <<locked>> | 80% | 52,170 psi | 82% | 2598 fps | 99% |
| Accurate 3100 | <<locked>> | 80% | 29,776 psi | 47% | 2241 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 52,127 psi | 82% | 2585 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 40,321 psi | 63% | 2487 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 92% | 45,832 psi | 72% | 2667 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 48,849 psi | 77% | 2569 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 38,769 psi | 61% | 2467 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 92% | 44,918 psi | 70% | 2621 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 98% | 35,476 psi | 56% | 2470 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,530 psi | 78% | 2589 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,968 psi | 83% | 2657 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,957 psi | 61% | 2493 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,251 psi | 69% | 2605 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 38,537 psi | 60% | 2464 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 88% | 38,798 psi | 61% | 2513 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,674 psi | 45% | 2267 fps | 98.2% |
| Alliant Reloder-25 | <<locked>> | 86% | 30,472 psi | 48% | 2333 fps | 95.8% |
| Alliant Reloder-26 | 61 gr | 80% | 30,690 psi | 48% | 2379 fps | 96.8% |
| Bofors RP15 | <<locked>> | 90% | 38,493 psi | 60% | 2503 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 50,198 psi | 79% | 2605 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 40,553 psi | 64% | 2582 fps | 95.3% |
| Bofors RP5 | <<locked>> | 88% | 38,798 psi | 61% | 2513 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 43,845 psi | 69% | 2490 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 96% | 41,176 psi | 65% | 2543 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 50,343 psi | 79% | 2618 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,003 psi | 66% | 2526 fps | 98% |
| Hodgdon H4350 | <<locked>> | 80% | 44,933 psi | 70% | 2546 fps | 97.5% |
| Hodgdon H4831 | <<locked>> | 90% | 45,005 psi | 71% | 2572 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,137 psi | 74% | 2608 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,535 psi | 57% | 2388 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 94% | 38,232 psi | 60% | 2572 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 40,901 psi | 64% | 2543 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 43% | 1486 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,372 psi | 81% | 2598 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 53,476 psi | 84% | 2631 fps | 99.6% |
| IMR 4350 | <<locked>> | 80% | 39,378 psi | 62% | 2425 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,266 psi | 71% | 2520 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 38,595 psi | 60% | 2438 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,034 psi | 69% | 2516 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 92% | 42,844 psi | 67% | 2592 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 51,677 psi | 81% | 2592 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,757 psi | 67% | 2470 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 40,973 psi | 64% | 2457 fps | 97.9% |
| Lovex S071 | <<locked>> | 86% | 31,067 psi | 49% | 2274 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 52,330 psi | 82% | 2644 fps | 100% |
| Norma 204 | <<locked>> | 80% | 38,957 psi | 61% | 2451 fps | 95.3% |
| Norma MRP | 62.2 gr | 84% | 35,476 psi | 56% | 2467 fps | 96% |
| Norma URP | <<locked>> | 80% | 39,755 psi | 62% | 2474 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 80% | 52,852 psi | 83% | 2671 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 42,569 psi | 67% | 2598 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 38,609 psi | 61% | 2467 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 90% | 35,346 psi | 55% | 2428 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,036 psi | 44% | 1522 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,111 psi | 79% | 2605 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,992 psi | 74% | 2648 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,059 psi | 63% | 2503 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,653 psi | 61% | 2513 fps | 98.9% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,143 psi | 55% | 2493 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 53,447 psi | 84% | 2602 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 47,166 psi | 74% | 2552 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,743 psi | 67% | 2500 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 84% | 37,608 psi | 59% | 2444 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 43,845 psi | 69% | 2490 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,757 psi | 67% | 2470 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 51,677 psi | 81% | 2592 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,973 psi | 64% | 2457 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,370 psi | 76% | 2605 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,167 psi | 75% | 2454 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,916 psi | 66% | 2421 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 37,260 psi | 58% | 2438 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 47,355 psi | 74% | 2552 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 46,659 psi | 73% | 2546 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 36,332 psi | 57% | 2434 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 35,897 psi | 56% | 2382 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 54,070 psi | 85% | 2562 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,896 psi | 84% | 2575 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 45,179 psi | 71% | 2484 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,321 psi | 65% | 2474 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 88% | 37,623 psi | 59% | 2415 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 52,214 psi | 82% | 2575 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,683 psi | 64% | 2477 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 31,850 psi | 50% | 2339 fps | 98.2% |
| Vihtavuori N560 | 66.6 gr | 90% | 43,903 psi | 69% | 2628 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 96% | 43,294 psi | 68% | 2608 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,234 psi | 63% | 2444 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,177 psi | 66% | 2530 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,353 psi | 40% | 2257 fps | 97.6% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,219 psi | 63% | 2470 fps | 95.9% |
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 94 powders for .308 Norma Mag. loaded with the .31 | 200gr | Lapua D166. Norma MRP delivers the highest muzzle velocity at 2,867 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,867 fps. ADI AR 2217 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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, Norma MRP, Vihtavuori N560 rank at the top here: for .308 Norma Mag. with the .31 | 200gr | Lapua D166 they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, Norma 217, ReloadSwiss RS 80 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.