Load Specifications
Bullet Manufacturer:SAKO
Bullet Weight:170 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:1:10.5
Load data in caliber .308 Norma Mag. with .308 | 170gr | Sako Powerhead Blade bullet and 103 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.
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 2015 | <<locked>> | 82% | 55,143 psi | 86% | 2756 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,172 psi | 85% | 2782 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,796 psi | 87% | 2851 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,666 psi | 89% | 2844 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,179 psi | 71% | 2749 fps | 97.6% |
| Accurate 4064 | <<locked>> | 88% | 54,360 psi | 85% | 2835 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 54,868 psi | 86% | 2930 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 54,636 psi | 86% | 2867 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,651 psi | 87% | 2867 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 52,997 psi | 83% | 2910 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,043 psi | 89% | 2867 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,607 psi | 86% | 2785 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,607 psi | 86% | 2989 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,808 psi | 83% | 2907 fps | 96.7% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 52,808 psi | 83% | 2907 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,883 psi | 88% | 2890 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,521 psi | 89% | 2917 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,970 psi | 88% | 2989 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 57,435 psi | 90% | 3022 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,025 psi | 82% | 2897 fps | 96.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,786 psi | 67% | 2779 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,414 psi | 76% | 2953 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,534 psi | 85% | 2884 fps | 99.9% |
| Bofors RP3 | <<locked>> | 90% | 56,710 psi | 89% | 2907 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,391 psi | 88% | 2884 fps | 98.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,027 psi | 86% | 2799 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,739 psi | 89% | 2897 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 57,435 psi | 90% | 2923 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 96% | 57,595 psi | 90% | 2982 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 92% | 54,259 psi | 85% | 2887 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 84% | 55,201 psi | 87% | 2877 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,101 psi | 88% | 2910 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,013 psi | 86% | 2913 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,302 psi | 85% | 2963 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,665 psi | 56% | 1765 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,318 psi | 88% | 2877 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,564 psi | 87% | 2858 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,100 psi | 86% | 2851 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,897 psi | 86% | 2835 fps | 98.4% |
| IMR 4350 | <<locked>> | 98% | 57,000 psi | 89% | 2910 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,897 psi | 86% | 2861 fps | 98.4% |
| IMR 4831 | <<locked>> | 98% | 55,390 psi | 87% | 2920 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 54,273 psi | 85% | 2890 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 57,043 psi | 89% | 2867 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,447 psi | 85% | 2841 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,188 psi | 90% | 2844 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,882 psi | 86% | 2844 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,302 psi | 85% | 2854 fps | 99.2% |
| Lovex S070 | <<locked>> | 96% | 55,593 psi | 87% | 2894 fps | 98.7% |
| Norma 201 | <<locked>> | 86% | 56,724 psi | 89% | 2861 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,464 psi | 90% | 2861 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,709 psi | 87% | 2900 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,331 psi | 85% | 2910 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 48,080 psi | 75% | 2907 fps | 97.3% |
| Norma URP | <<locked>> | 98% | 57,479 psi | 90% | 2969 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 88% | 56,420 psi | 88% | 2927 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,434 psi | 88% | 2972 fps | 99.3% |
| Ramshot TAC | <<locked>> | 84% | 57,232 psi | 90% | 2894 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,985 psi | 89% | 2907 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 57,595 psi | 90% | 2867 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,303 psi | 57% | 1811 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,911 psi | 84% | 2851 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,348 psi | 90% | 2982 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,101 psi | 89% | 3015 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 54,781 psi | 86% | 2953 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 53,911 psi | 84% | 2982 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 84% | 57,159 psi | 90% | 2835 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,043 psi | 89% | 2858 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 56,579 psi | 89% | 2900 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 54,781 psi | 86% | 2884 fps | 95.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,691 psi | 79% | 2874 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 94% | 56,391 psi | 88% | 2884 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,302 psi | 85% | 2854 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,447 psi | 85% | 2841 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,882 psi | 86% | 2844 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,593 psi | 87% | 2894 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 54,868 psi | 86% | 2910 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,796 psi | 87% | 2871 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,550 psi | 89% | 2890 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,549 psi | 85% | 2749 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,042 psi | 86% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,346 psi | 85% | 2805 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,212 psi | 79% | 2867 fps | 96.3% |
| Somchem S335 | <<locked>> | 86% | 57,493 psi | 90% | 2792 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,535 psi | 87% | 2858 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 56,652 psi | 89% | 2897 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 55,985 psi | 88% | 2969 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,503 psi | 81% | 2858 fps | 97.4% |
| Vihtavuori N130 | <<locked>> | 82% | 57,522 psi | 90% | 2749 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 54,998 psi | 86% | 2733 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,188 psi | 90% | 2818 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,505 psi | 85% | 2792 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 54,723 psi | 86% | 2825 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,405 psi | 88% | 2913 fps | 99.9% |
| Vihtavuori N530 | <<locked>> | 84% | 57,522 psi | 90% | 2867 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,246 psi | 88% | 2835 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,332 psi | 87% | 2917 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,413 psi | 74% | 2851 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,449 psi | 88% | 2887 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,099 psi | 85% | 2861 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,041 psi | 85% | 2927 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,348 psi | 60% | 2802 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 56,724 psi | 89% | 2900 fps | 100% |
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 2015 | <<locked>> | 80% | 51,779 psi | 81% | 2710 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,280 psi | 69% | 2635 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,127 psi | 82% | 2799 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,453 psi | 68% | 2621 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 36,448 psi | 57% | 2575 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,916 psi | 66% | 2635 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 33,330 psi | 52% | 2520 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 48,037 psi | 75% | 2762 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 40,785 psi | 64% | 2608 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 49,487 psi | 78% | 2848 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,212 psi | 79% | 2766 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,097 psi | 80% | 2740 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,164 psi | 69% | 2805 fps | 99.2% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 46,340 psi | 73% | 2792 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 46,340 psi | 73% | 2792 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,625 psi | 64% | 2631 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,627 psi | 68% | 2697 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,473 psi | 49% | 2480 fps | 95.1% |
| Alliant Reloder-17 | 56.6 gr | 80% | 35,172 psi | 55% | 2608 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,660 psi | 76% | 2838 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,109 psi | 46% | 2441 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 90% | 33,678 psi | 53% | 2625 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,572 psi | 75% | 2769 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 40,422 psi | 63% | 2638 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 43,729 psi | 69% | 2661 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,561 psi | 81% | 2746 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,400 psi | 77% | 2789 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,031 psi | 64% | 2641 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 41,075 psi | 64% | 2690 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 44,614 psi | 70% | 2717 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 48,559 psi | 76% | 2772 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,776 psi | 45% | 2379 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,831 psi | 70% | 2746 fps | 99.9% |
| Hodgdon Superformance | 65.8 gr | 88% | 43,569 psi | 68% | 2769 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,600 psi | 42% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,514 psi | 73% | 2720 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 48,457 psi | 76% | 2753 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,844 psi | 67% | 2644 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,281 psi | 71% | 2667 fps | 96.6% |
| IMR 4350 | <<locked>> | 90% | 44,367 psi | 70% | 2697 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 40,277 psi | 63% | 2592 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 32,460 psi | 51% | 2480 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 44,744 psi | 70% | 2730 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 50,212 psi | 79% | 2766 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,442 psi | 74% | 2733 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,645 psi | 75% | 2694 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 42,714 psi | 67% | 2644 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 37,318 psi | 58% | 2536 fps | 95.7% |
| Lovex S070 | <<locked>> | 86% | 40,379 psi | 63% | 2621 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 46,804 psi | 73% | 2707 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,413 psi | 74% | 2713 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,960 psi | 67% | 2684 fps | 99.3% |
| Norma 204 | <<locked>> | 92% | 47,282 psi | 74% | 2789 fps | 95.1% |
| Norma MRP | <<locked>> | 96% | 41,843 psi | 66% | 2782 fps | 95.5% |
| Norma URP | <<locked>> | 82% | 33,678 psi | 53% | 2523 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 42,844 psi | 67% | 2703 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 37,594 psi | 59% | 2621 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 50,111 psi | 79% | 2779 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,966 psi | 78% | 2799 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,998 psi | 85% | 2815 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,876 psi | 42% | 1614 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,365 psi | 65% | 2625 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,441 psi | 73% | 2805 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,463 psi | 59% | 2671 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 33,257 psi | 52% | 2539 fps | 95.4% |
| ReloadSwiss RS 70 | 60.4 gr | 84% | 35,491 psi | 56% | 2605 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 50,778 psi | 80% | 2743 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,454 psi | 70% | 2657 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 37,956 psi | 59% | 2579 fps | 99% |
| Rottweil R 904 | <<locked>> | 98% | 51,387 psi | 81% | 2828 fps | 95% |
| Rottweil R 905 | <<locked>> | 98% | 47,413 psi | 74% | 2818 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 86% | 43,729 psi | 69% | 2661 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,318 psi | 58% | 2536 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,442 psi | 74% | 2733 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,714 psi | 67% | 2644 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 40,379 psi | 63% | 2621 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,073 psi | 61% | 2631 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,515 psi | 76% | 2753 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,441 psi | 73% | 2726 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,037 psi | 75% | 2651 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,147 psi | 63% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,742 psi | 65% | 2589 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 46,963 psi | 74% | 2812 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 47,718 psi | 75% | 2651 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,385 psi | 76% | 2749 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 38,653 psi | 61% | 2582 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 28,166 psi | 44% | 2418 fps | 97.2% |
| Somchem S385 | <<locked>> | 94% | 42,076 psi | 66% | 2687 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 54,070 psi | 85% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 48,515 psi | 76% | 2641 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,324 psi | 69% | 2631 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,947 psi | 70% | 2648 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,840 psi | 58% | 2516 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 32,924 psi | 52% | 2474 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 50,473 psi | 79% | 2762 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,178 psi | 68% | 2635 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,285 psi | 51% | 2467 fps | 95% |
| Vihtavuori N555 | <<locked>> | 88% | 31,575 psi | 49% | 2516 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,576 psi | 51% | 2451 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 50,560 psi | 79% | 2808 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 41,292 psi | 65% | 2694 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,354 psi | 43% | 2461 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,166 psi | 72% | 2733 fps | 99.9% |
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 103 powders for .308 Norma Mag. loaded with the .308 | 170gr | Sako Powerhead Blade. Alliant Reloder-17 delivers the highest muzzle velocity at 3,022 fps; across all powders the maximum-charge window runs from 1,765 fps to 3,022 fps. Accurate 3100 gives the best case fill at 100 %, and 103 of the 103 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 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .308 Norma Mag. with the .308 | 170gr | Sako Powerhead Blade 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.