Load Specifications
Bullet Manufacturer:SAKO
Bullet Weight:180 gr
Bullet Diameter:0.308"
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:1:15.0
Load data in caliber .308 Norma Mag. with .308 | 180gr | Sako Hammerhead bullet and 99 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% | 55,376 psi | 87% | 2726 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,507 psi | 89% | 2799 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,201 psi | 85% | 2838 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 55,709 psi | 87% | 2782 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,449 psi | 88% | 2887 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 55,245 psi | 87% | 2979 fps | 97.5% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 56,391 psi | 88% | 2979 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 86% | 55,593 psi | 87% | 2812 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 57,406 psi | 90% | 2933 fps | 98.5% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,955 psi | 86% | 2927 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,868 psi | 86% | 2933 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,508 psi | 90% | 2930 fps | 98.5% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,508 psi | 90% | 2930 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,376 psi | 88% | 2831 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,681 psi | 89% | 2858 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 57,101 psi | 89% | 2943 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,621 psi | 86% | 2913 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,681 psi | 89% | 2920 fps | 98.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,853 psi | 84% | 2923 fps | 98.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,749 psi | 80% | 2854 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,237 psi | 69% | 2779 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,592 psi | 86% | 2992 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,284 psi | 77% | 2844 fps | 97.2% |
| Bofors RP3 | <<locked>> | 86% | 57,363 psi | 90% | 2851 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,853 psi | 84% | 2923 fps | 98.2% |
| Bofors RP7 | <<locked>> | 90% | 56,811 psi | 89% | 2841 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 54,085 psi | 85% | 2815 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 54,998 psi | 86% | 2887 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 54,679 psi | 86% | 2844 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 98% | 55,114 psi | 86% | 2871 fps | 96.3% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 57,725 psi | 90% | 2910 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 57,363 psi | 90% | 2864 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,376 psi | 87% | 2851 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,337 psi | 68% | 2805 fps | 96.3% |
| Hodgdon Superformance | <<locked>> | 90% | 55,187 psi | 86% | 2927 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,376 psi | 57% | 1755 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,144 psi | 88% | 2815 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,114 psi | 86% | 2795 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,725 psi | 90% | 2831 fps | 99.5% |
| IMR 4350 | <<locked>> | 94% | 57,682 psi | 90% | 2871 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,795 psi | 86% | 2812 fps | 99.1% |
| IMR 4831 | <<locked>> | 94% | 56,768 psi | 89% | 2877 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,752 psi | 86% | 2835 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,768 psi | 89% | 2861 fps | 96.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,315 psi | 82% | 2894 fps | 96.5% |
| Lovex S060 | <<locked>> | 82% | 56,521 psi | 89% | 2779 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,506 psi | 87% | 2789 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,897 psi | 86% | 2808 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 56,304 psi | 88% | 2851 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,107 psi | 71% | 2690 fps | 98.5% |
| Norma 201 | <<locked>> | 82% | 56,724 psi | 89% | 2799 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,421 psi | 90% | 2795 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,956 psi | 88% | 2841 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,868 psi | 86% | 2867 fps | 98% |
| Norma MRPᴾ | <<locked>> | 100% | 57,435 psi | 90% | 3009 fps | 99.6% |
| Norma URP | <<locked>> | 92% | 55,114 psi | 86% | 2874 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,884 psi | 89% | 2871 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,605 psi | 82% | 2910 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 94% | 57,522 psi | 90% | 2930 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,949 psi | 74% | 2785 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,115 psi | 58% | 1798 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,172 psi | 85% | 2802 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,172 psi | 85% | 2907 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 56,246 psi | 88% | 2910 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,810 psi | 86% | 2940 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,192 psi | 68% | 2799 fps | 97.4% |
| Rottweil R 902 | <<locked>> | 84% | 57,276 psi | 90% | 2799 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,450 psi | 90% | 2848 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,376 psi | 87% | 2844 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 98% | 55,825 psi | 87% | 2904 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 90% | 56,811 psi | 89% | 2841 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,897 psi | 86% | 2808 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 55,506 psi | 87% | 2789 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,304 psi | 88% | 2851 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,448 psi | 87% | 2858 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,420 psi | 88% | 2828 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,363 psi | 90% | 2726 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,013 psi | 86% | 2687 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,650 psi | 86% | 2762 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,332 psi | 87% | 2900 fps | 98.4% |
| Somchem S335 | <<locked>> | 82% | 57,203 psi | 90% | 2726 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,319 psi | 90% | 2844 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 57,116 psi | 90% | 2838 fps | 96.7% |
| Somchem S365 | <<locked>> | 94% | 54,375 psi | 85% | 2874 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,478 psi | 89% | 2881 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 54,230 psi | 85% | 2710 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,462 psi | 85% | 2726 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,114 psi | 86% | 2769 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 57,217 psi | 90% | 2867 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,185 psi | 82% | 2802 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 84% | 56,028 psi | 88% | 2769 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,362 psi | 88% | 2874 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 57,000 psi | 89% | 2933 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,711 psi | 90% | 2999 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,942 psi | 89% | 2835 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,998 psi | 86% | 2887 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,050 psi | 72% | 2917 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,652 psi | 89% | 2838 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,869 psi | 89% | 2881 fps | 98.4% |
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% | 51,735 psi | 81% | 2677 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,443 psi | 77% | 2684 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 33,779 psi | 53% | 2454 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 49,052 psi | 77% | 2684 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,420 psi | 59% | 2552 fps | 98.2% |
| Accurate High Country | <<locked>> | 94% | 48,080 psi | 75% | 2854 fps | 95.9% |
| Accurate MAGPRO | <<locked>> | 98% | 52,373 psi | 82% | 2913 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 46,282 psi | 73% | 2661 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 44,193 psi | 69% | 2703 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 96% | 48,153 psi | 75% | 2805 fps | 95.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,213 psi | 80% | 2874 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,382 psi | 70% | 2703 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,382 psi | 70% | 2703 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,891 psi | 73% | 2687 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,951 psi | 78% | 2753 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,506 psi | 57% | 2562 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,234 psi | 65% | 2684 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,859 psi | 69% | 2697 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,191 psi | 65% | 2684 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,731 psi | 42% | 2320 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,271 psi | 51% | 2490 fps | 95% |
| Alliant Reloder-26 | 63.9 gr | 82% | 30,516 psi | 48% | 2484 fps | 95.2% |
| Bofors RP15 | <<locked>> | 96% | 43,439 psi | 68% | 2733 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 47,065 psi | 74% | 2694 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 41,191 psi | 65% | 2684 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 41,437 psi | 65% | 2569 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 47,572 psi | 75% | 2707 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 39,363 psi | 62% | 2598 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 42,250 psi | 66% | 2618 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 96% | 51,430 psi | 81% | 2812 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,531 psi | 79% | 2795 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,011 psi | 53% | 2457 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,822 psi | 81% | 2799 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,582 psi | 64% | 2740 fps | 95.1% |
| Hodgdon Superformance | 64.3 gr | 80% | 38,290 psi | 60% | 2605 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,151 psi | 43% | 1568 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,605 psi | 82% | 2762 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,689 psi | 76% | 2694 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,995 psi | 80% | 2723 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 39,537 psi | 62% | 2549 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,859 psi | 67% | 2598 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 35,955 psi | 56% | 2507 fps | 97.9% |
| IMR 4895 | <<locked>> | 80% | 51,227 psi | 80% | 2779 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,096 psi | 79% | 2749 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 98% | 49,095 psi | 77% | 2835 fps | 95.7% |
| Lovex S060 | <<locked>> | 80% | 53,214 psi | 83% | 2730 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,892 psi | 77% | 2690 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,350 psi | 63% | 2549 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 38,740 psi | 61% | 2533 fps | 96.2% |
| Lovex S071 | <<locked>> | 92% | 34,911 psi | 55% | 2484 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 53,142 psi | 83% | 2746 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,998 psi | 85% | 2746 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,298 psi | 77% | 2740 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,788 psi | 70% | 2694 fps | 95.8% |
| Norma MRP | <<locked>> | 88% | 37,855 psi | 59% | 2641 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 37,275 psi | 58% | 2549 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 49,676 psi | 78% | 2762 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 45,643 psi | 72% | 2779 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 36,071 psi | 57% | 2533 fps | 96% |
| Ramshot Magnum | <<locked>> | 96% | 40,698 psi | 64% | 2657 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,702 psi | 43% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,398 psi | 74% | 2690 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,816 psi | 69% | 2740 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,188 psi | 58% | 2572 fps | 97.9% |
| ReloadSwiss RS 70 | 61.8 gr | 80% | 36,129 psi | 57% | 2575 fps | 97.2% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,579 psi | 59% | 2661 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 50,676 psi | 79% | 2703 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,454 psi | 70% | 2644 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,878 psi | 77% | 2736 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 90% | 42,917 psi | 67% | 2680 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 41,437 psi | 65% | 2569 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,350 psi | 63% | 2549 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 48,892 psi | 77% | 2690 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,740 psi | 61% | 2533 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,498 psi | 71% | 2697 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,939 psi | 83% | 2776 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,099 psi | 85% | 2684 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,774 psi | 72% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,537 psi | 62% | 2497 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,569 psi | 67% | 2674 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 53,650 psi | 84% | 2680 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,599 psi | 70% | 2641 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,256 psi | 79% | 2730 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 33,721 psi | 53% | 2507 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 38,145 psi | 60% | 2549 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 51,111 psi | 80% | 2667 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,213 psi | 80% | 2680 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,728 psi | 67% | 2572 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,638 psi | 61% | 2549 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 40,059 psi | 63% | 2582 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 49,487 psi | 78% | 2677 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,145 psi | 60% | 2549 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 29,515 psi | 46% | 2395 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 96% | 50,125 psi | 79% | 2871 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,695 psi | 59% | 2516 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 39,523 psi | 62% | 2602 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,237 psi | 40% | 2343 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,069 psi | 83% | 2785 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,917 psi | 67% | 2644 fps | 95.4% |
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 99 powders for .308 Norma Mag. loaded with the .308 | 180gr | Sako Hammerhead. Norma MRP delivers the highest muzzle velocity at 3,009 fps; across all powders the maximum-charge window runs from 1,755 fps to 3,009 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 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 0.308" calls for a 1:15.0 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. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for .308 Norma Mag. with the .308 | 180gr | Sako Hammerhead 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.