Load Specifications
Bullet Manufacturer:Norma
Bullet Weight:180 gr
Bullet Diameter:0.311"
Bullet Length:<<locked>>
Caliber:.308 Norma Mag. load data
Case Length (l3):2.559"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:86.5 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:14.5
Load data in caliber .308 Norma Mag. with .311 | 180gr | Norma Semi Soft Point 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 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% | 55,129 psi | 86% | 2723 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,347 psi | 88% | 2795 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,027 psi | 85% | 2835 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 55,463 psi | 87% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,202 psi | 88% | 2887 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 55,071 psi | 86% | 2972 fps | 97.4% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 56,202 psi | 88% | 2976 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 86% | 55,608 psi | 87% | 2812 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 57,217 psi | 90% | 2930 fps | 98.5% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,795 psi | 86% | 2923 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,882 psi | 86% | 2933 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,319 psi | 90% | 2927 fps | 98.5% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,319 psi | 90% | 2927 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,391 psi | 88% | 2835 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,478 psi | 89% | 2854 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,884 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,389 psi | 85% | 2910 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,492 psi | 89% | 2917 fps | 98.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,679 psi | 84% | 2920 fps | 98.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,633 psi | 79% | 2851 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,092 psi | 69% | 2776 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,346 psi | 85% | 2989 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,110 psi | 77% | 2841 fps | 97.1% |
| Bofors RP3 | <<locked>> | 86% | 57,392 psi | 90% | 2851 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,679 psi | 84% | 2920 fps | 98.2% |
| Bofors RP7 | <<locked>> | 90% | 56,594 psi | 89% | 2838 fps | 99% |
| Hodgdon H380 | <<locked>> | 86% | 57,580 psi | 90% | 2867 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 54,781 psi | 86% | 2884 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 54,520 psi | 85% | 2841 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 98% | 54,955 psi | 86% | 2867 fps | 96.3% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 57,566 psi | 90% | 2907 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 57,406 psi | 90% | 2864 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,129 psi | 86% | 2848 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,207 psi | 68% | 2802 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 90% | 55,013 psi | 86% | 2920 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,492 psi | 57% | 1755 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,956 psi | 88% | 2812 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,114 psi | 86% | 2795 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,566 psi | 90% | 2828 fps | 99.4% |
| IMR 4350 | <<locked>> | 94% | 57,493 psi | 90% | 2867 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,824 psi | 86% | 2812 fps | 99.1% |
| IMR 4831 | <<locked>> | 94% | 56,550 psi | 89% | 2874 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,520 psi | 85% | 2831 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,608 psi | 89% | 2858 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,156 psi | 82% | 2890 fps | 96.5% |
| Lovex S060 | <<locked>> | 82% | 56,565 psi | 89% | 2779 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,259 psi | 87% | 2785 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,926 psi | 86% | 2808 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 56,130 psi | 88% | 2848 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,947 psi | 70% | 2687 fps | 98.5% |
| Norma 201 | <<locked>> | 82% | 56,521 psi | 89% | 2795 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,203 psi | 90% | 2789 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,767 psi | 87% | 2841 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,737 psi | 86% | 2867 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 57,217 psi | 90% | 3005 fps | 99.5% |
| Norma URP | <<locked>> | 92% | 54,882 psi | 86% | 2871 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,695 psi | 89% | 2867 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,460 psi | 82% | 2907 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 94% | 57,334 psi | 90% | 2927 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,818 psi | 73% | 2782 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,028 psi | 58% | 1795 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 57,566 psi | 90% | 2854 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,711 psi | 90% | 2923 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,954 psi | 85% | 2904 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 56,072 psi | 88% | 2910 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,636 psi | 86% | 2936 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,062 psi | 67% | 2795 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 84% | 57,334 psi | 90% | 2799 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,261 psi | 90% | 2844 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,187 psi | 86% | 2841 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 98% | 55,622 psi | 87% | 2900 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 90% | 56,594 psi | 89% | 2838 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,926 psi | 86% | 2808 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 55,259 psi | 87% | 2785 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,130 psi | 88% | 2848 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,216 psi | 87% | 2851 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,202 psi | 88% | 2825 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,348 psi | 90% | 2726 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,824 psi | 86% | 2684 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,433 psi | 85% | 2759 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,143 psi | 86% | 2897 fps | 98.3% |
| Somchem S335 | <<locked>> | 82% | 56,971 psi | 89% | 2723 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,072 psi | 89% | 2838 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 56,971 psi | 89% | 2838 fps | 96.6% |
| Somchem S365 | <<locked>> | 94% | 54,172 psi | 85% | 2871 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,304 psi | 88% | 2877 fps | 99% |
| Vihtavuori N135 | <<locked>> | 84% | 57,493 psi | 90% | 2753 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,259 psi | 85% | 2723 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,911 psi | 86% | 2766 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 57,000 psi | 89% | 2864 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,011 psi | 82% | 2799 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 84% | 56,101 psi | 88% | 2769 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,217 psi | 88% | 2871 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,782 psi | 89% | 2930 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,479 psi | 90% | 2995 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,768 psi | 89% | 2831 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,781 psi | 86% | 2884 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,876 psi | 72% | 2913 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,449 psi | 88% | 2835 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,710 psi | 89% | 2874 fps | 98.3% |
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% | 51,735 psi | 81% | 2677 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,458 psi | 78% | 2684 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 33,605 psi | 53% | 2451 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 48,979 psi | 77% | 2684 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,246 psi | 58% | 2549 fps | 98.1% |
| Accurate High Country | <<locked>> | 94% | 47,892 psi | 75% | 2851 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 98% | 52,214 psi | 82% | 2910 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 46,079 psi | 72% | 2654 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 44,005 psi | 69% | 2697 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 96% | 47,993 psi | 75% | 2802 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,966 psi | 80% | 2871 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,222 psi | 69% | 2700 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,222 psi | 69% | 2700 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,659 psi | 73% | 2680 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,734 psi | 78% | 2749 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,303 psi | 57% | 2556 fps | 98.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,234 psi | 65% | 2684 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,700 psi | 68% | 2694 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,046 psi | 64% | 2680 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,716 psi | 42% | 2316 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,169 psi | 50% | 2487 fps | 95% |
| Alliant Reloder-26 | 63.7 gr | 82% | 30,385 psi | 48% | 2480 fps | 95.1% |
| Bofors RP15 | <<locked>> | 96% | 43,323 psi | 68% | 2730 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 47,065 psi | 74% | 2694 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 41,046 psi | 64% | 2680 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 41,437 psi | 65% | 2566 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 80% | 47,384 psi | 74% | 2703 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 39,349 psi | 62% | 2598 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 42,235 psi | 66% | 2618 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 96% | 51,329 psi | 80% | 2805 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,357 psi | 79% | 2789 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,997 psi | 53% | 2457 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,619 psi | 81% | 2795 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,451 psi | 63% | 2736 fps | 95% |
| Hodgdon Superformance | 64.1 gr | 80% | 38,116 psi | 60% | 2602 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 43% | 1568 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,605 psi | 82% | 2762 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,472 psi | 76% | 2690 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,792 psi | 80% | 2720 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 39,552 psi | 62% | 2549 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,873 psi | 67% | 2598 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 35,955 psi | 56% | 2507 fps | 97.9% |
| IMR 4895 | <<locked>> | 80% | 51,024 psi | 80% | 2776 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,922 psi | 78% | 2746 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 98% | 48,936 psi | 77% | 2831 fps | 95.6% |
| Lovex S060 | <<locked>> | 80% | 53,258 psi | 83% | 2730 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,878 psi | 77% | 2690 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,335 psi | 63% | 2549 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 38,537 psi | 60% | 2526 fps | 96.1% |
| Lovex S071 | <<locked>> | 92% | 34,737 psi | 54% | 2477 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 53,156 psi | 83% | 2746 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,795 psi | 84% | 2743 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,095 psi | 77% | 2736 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,628 psi | 70% | 2690 fps | 95.7% |
| Norma MRP | <<locked>> | 88% | 37,695 psi | 59% | 2638 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 37,115 psi | 58% | 2546 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 49,472 psi | 78% | 2756 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,834 psi | 77% | 2841 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 35,897 psi | 56% | 2530 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 96% | 40,567 psi | 64% | 2657 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,789 psi | 44% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,398 psi | 74% | 2687 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,853 psi | 84% | 2864 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,816 psi | 69% | 2740 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,999 psi | 58% | 2566 fps | 97.8% |
| ReloadSwiss RS 70 | 61.6 gr | 80% | 35,955 psi | 56% | 2569 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,478 psi | 59% | 2657 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 50,676 psi | 79% | 2700 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,222 psi | 69% | 2641 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,689 psi | 76% | 2736 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 90% | 42,772 psi | 67% | 2677 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 41,437 psi | 65% | 2566 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,335 psi | 63% | 2549 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 48,878 psi | 77% | 2690 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,537 psi | 60% | 2526 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,324 psi | 71% | 2694 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,707 psi | 83% | 2772 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,867 psi | 84% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,542 psi | 71% | 2549 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,552 psi | 62% | 2493 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,366 psi | 66% | 2671 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 53,693 psi | 84% | 2677 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,614 psi | 70% | 2641 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,096 psi | 79% | 2726 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 33,518 psi | 53% | 2500 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 38,159 psi | 60% | 2549 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 50,894 psi | 80% | 2664 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,981 psi | 80% | 2677 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,540 psi | 67% | 2569 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,450 psi | 60% | 2543 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 92% | 39,929 psi | 63% | 2579 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 49,313 psi | 77% | 2671 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,985 psi | 60% | 2546 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 29,327 psi | 46% | 2392 fps | 96% |
| Vihtavuori N560 | <<locked>> | 96% | 49,966 psi | 78% | 2867 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,565 psi | 59% | 2513 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 39,349 psi | 62% | 2598 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,135 psi | 39% | 2339 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,866 psi | 83% | 2782 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,743 psi | 67% | 2641 fps | 95.3% |
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 100 powders for .308 Norma Mag. loaded with the .311 | 180gr | Norma Semi Soft Point. Norma MRP delivers the highest muzzle velocity at 3,005 fps; across all powders the maximum-charge window runs from 1,755 fps to 3,005 fps. Accurate 3100 gives the best case fill at 100 %, and 100 of the 100 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 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, Hodgdon Superformance rank at the top here: for .308 Norma Mag. with the .311 | 180gr | Norma Semi Soft Point 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.