Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:165 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:1:13.5
Load data in caliber .308 Norma Mag. with .308 | 165gr | Sierra SBT GameKing bullet and 104 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 2495 | <<locked>> | 84% | 55,114 psi | 86% | 2844 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 56,753 psi | 89% | 2910 fps | 98.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,024 psi | 78% | 2884 fps | 98.6% |
| Accurate 4064 | <<locked>> | 86% | 55,347 psi | 87% | 2897 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 55,941 psi | 88% | 3002 fps | 99.9% |
| Accurate High Countryᴾ | <<locked>> | 100% | 54,476 psi | 85% | 3077 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 82% | 54,708 psi | 86% | 2927 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 55,898 psi | 88% | 2930 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 57,246 psi | 90% | 3041 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 56,898 psi | 89% | 2923 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 54,810 psi | 86% | 3051 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 57,159 psi | 90% | 3035 fps | 97.7% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 57,159 psi | 90% | 3035 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 56,434 psi | 88% | 2953 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 56,782 psi | 89% | 2976 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,550 psi | 89% | 3058 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 54,288 psi | 85% | 3031 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,304 psi | 88% | 3025 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,617 psi | 78% | 2956 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,905 psi | 74% | 2904 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,118 psi | 64% | 2808 fps | 97.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,606 psi | 84% | 3097 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 54,505 psi | 85% | 2943 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 57,246 psi | 90% | 2972 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,617 psi | 78% | 2956 fps | 96.4% |
| Bofors RP7 | <<locked>> | 92% | 56,768 psi | 89% | 2949 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 82% | 56,956 psi | 89% | 2956 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 54,360 psi | 85% | 2933 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 92% | 54,679 psi | 86% | 2995 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 90% | 54,679 psi | 86% | 2953 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 82% | 55,288 psi | 87% | 2936 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 56,956 psi | 89% | 2979 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,463 psi | 87% | 2976 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,766 psi | 86% | 3031 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,042 psi | 56% | 1827 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,478 psi | 89% | 2940 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 55,825 psi | 87% | 2917 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,419 psi | 87% | 2913 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 54,592 psi | 86% | 2890 fps | 98.5% |
| IMR 4350 | <<locked>> | 96% | 57,624 psi | 90% | 2982 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 54,998 psi | 86% | 2923 fps | 98.5% |
| IMR 4831 | <<locked>> | 96% | 56,333 psi | 88% | 2992 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 54,781 psi | 86% | 2953 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 56,753 psi | 89% | 2963 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 82% | 56,898 psi | 89% | 2923 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,940 psi | 86% | 2900 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 57,087 psi | 89% | 2904 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 55,434 psi | 87% | 2907 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 54,940 psi | 86% | 2920 fps | 99.4% |
| Lovex S070 | <<locked>> | 94% | 56,231 psi | 88% | 2963 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,408 psi | 65% | 2726 fps | 96.8% |
| Norma 201 | <<locked>> | 84% | 56,855 psi | 89% | 2920 fps | 100% |
| Norma 202 | <<locked>> | 84% | 57,696 psi | 90% | 2920 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,057 psi | 88% | 2963 fps | 100% |
| Norma 204 | <<locked>> | 94% | 54,650 psi | 86% | 2972 fps | 97% |
| Norma MRPᴾ | <<locked>> | 100% | 52,721 psi | 83% | 3048 fps | 98.4% |
| Norma URP | <<locked>> | 94% | 54,752 psi | 86% | 2986 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 56,971 psi | 89% | 2992 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 57,043 psi | 89% | 3038 fps | 99.4% |
| Ramshot TAC | <<locked>> | 82% | 57,188 psi | 90% | 2953 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 57,203 psi | 90% | 2966 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,709 psi | 58% | 1870 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 54,259 psi | 85% | 2913 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 57,711 psi | 90% | 3048 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 57,725 psi | 90% | 3084 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,854 psi | 88% | 3025 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 54,578 psi | 86% | 3051 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 57,638 psi | 90% | 2897 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 57,653 psi | 90% | 2923 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 57,377 psi | 90% | 2966 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,288 psi | 87% | 2949 fps | 96.1% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,317 psi | 87% | 3009 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 92% | 56,768 psi | 89% | 2949 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 54,940 psi | 86% | 2920 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,940 psi | 86% | 2900 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 55,434 psi | 87% | 2907 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,231 psi | 88% | 2963 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,274 psi | 87% | 2972 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 55,840 psi | 88% | 2930 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 56,608 psi | 89% | 2949 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 54,520 psi | 85% | 2805 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,216 psi | 87% | 2808 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 54,781 psi | 86% | 2871 fps | 98.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,824 psi | 86% | 3002 fps | 97.4% |
| Somchem S335 | <<locked>> | 84% | 57,421 psi | 90% | 2848 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,463 psi | 87% | 2917 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 57,334 psi | 90% | 2963 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 57,232 psi | 90% | 3038 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,985 psi | 88% | 2982 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 82% | 54,998 psi | 86% | 2789 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 57,725 psi | 90% | 2881 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 54,679 psi | 86% | 2848 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,187 psi | 86% | 2887 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 56,942 psi | 89% | 2979 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,443 psi | 76% | 2844 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 82% | 57,305 psi | 90% | 2923 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 56,463 psi | 88% | 2894 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,057 psi | 88% | 2986 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,359 psi | 82% | 2982 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,840 psi | 89% | 2949 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 54,926 psi | 86% | 2999 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,221 psi | 66% | 2943 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 56,913 psi | 89% | 2959 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,562 psi | 82% | 2920 fps | 96.7% |
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% | 48,501 psi | 76% | 2749 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,702 psi | 73% | 2740 fps | 96.3% |
| Accurate 3100 | <<locked>> | 92% | 38,014 psi | 60% | 2654 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 45,890 psi | 72% | 2753 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,432 psi | 54% | 2585 fps | 96.3% |
| Accurate High Country | <<locked>> | 98% | 50,821 psi | 80% | 3015 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 51,271 psi | 80% | 2871 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,540 psi | 68% | 2717 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 94% | 46,920 psi | 74% | 2858 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,316 psi | 84% | 2871 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,616 psi | 75% | 2927 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 46,949 psi | 74% | 2858 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 46,949 psi | 74% | 2858 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,859 psi | 69% | 2743 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,804 psi | 73% | 2812 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,011 psi | 53% | 2598 fps | 96.4% |
| Alliant Reloder-17 | 60.9 gr | 80% | 38,392 psi | 60% | 2733 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 46,354 psi | 73% | 2848 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 46,572 psi | 73% | 2900 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 84% | 28,181 psi | 44% | 2454 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 96% | 36,230 psi | 57% | 2687 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 88% | 34,635 psi | 54% | 2694 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,126 psi | 80% | 2887 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 44,063 psi | 69% | 2756 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 46,572 psi | 73% | 2900 fps | 95.6% |
| Bofors RP7 | <<locked>> | 82% | 41,553 psi | 65% | 2671 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,113 psi | 83% | 2900 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,498 psi | 70% | 2759 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 82% | 39,218 psi | 61% | 2700 fps | 95% |
| Hodgdon H4350 | <<locked>> | 84% | 45,121 psi | 71% | 2779 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 51,808 psi | 81% | 2881 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,618 psi | 50% | 2497 fps | 97.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,327 psi | 76% | 2861 fps | 100% |
| Hodgdon Superformance | 67.6 gr | 84% | 41,133 psi | 64% | 2769 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,035 psi | 42% | 1637 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,734 psi | 78% | 2831 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 52,330 psi | 82% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,788 psi | 72% | 2753 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,167 psi | 75% | 2779 fps | 97.4% |
| IMR 4350 | <<locked>> | 86% | 42,148 psi | 66% | 2707 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,509 psi | 63% | 2651 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 33,388 psi | 52% | 2546 fps | 96.1% |
| IMR 4895 | <<locked>> | 80% | 48,008 psi | 75% | 2841 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 53,185 psi | 83% | 2904 fps | 95% |
| IMR 8208 XBR | <<locked>> | 80% | 53,316 psi | 84% | 2871 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 51,387 psi | 81% | 2848 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,647 psi | 79% | 2802 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,093 psi | 72% | 2756 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,971 psi | 60% | 2598 fps | 96.1% |
| Lovex S070 | <<locked>> | 82% | 38,638 psi | 61% | 2628 fps | 95% |
| Lovex S071 | <<locked>> | 96% | 36,434 psi | 57% | 2615 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 50,285 psi | 79% | 2818 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,807 psi | 80% | 2818 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,180 psi | 72% | 2799 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 47,688 psi | 75% | 2851 fps | 95.4% |
| Norma MRP | <<locked>> | 92% | 40,089 psi | 63% | 2792 fps | 95% |
| Norma URP | <<locked>> | 80% | 34,534 psi | 54% | 2589 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 80% | 46,282 psi | 73% | 2815 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 38,247 psi | 60% | 2684 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 53,490 psi | 84% | 2894 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,417 psi | 84% | 2910 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,354 psi | 43% | 1673 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,686 psi | 70% | 2743 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,299 psi | 79% | 2930 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,799 psi | 64% | 2792 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,185 psi | 54% | 2602 fps | 95.9% |
| ReloadSwiss RS 70 | 63.4 gr | 82% | 36,042 psi | 56% | 2671 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 54,230 psi | 85% | 2848 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,921 psi | 75% | 2769 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,365 psi | 65% | 2697 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 51,938 psi | 81% | 2894 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 94% | 45,324 psi | 71% | 2831 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 82% | 41,553 psi | 65% | 2671 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,971 psi | 60% | 2598 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,387 psi | 81% | 2848 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,093 psi | 72% | 2756 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 38,638 psi | 61% | 2628 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,380 psi | 66% | 2746 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,272 psi | 82% | 2874 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,748 psi | 78% | 2841 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,198 psi | 80% | 2756 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,091 psi | 68% | 2621 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 39,624 psi | 62% | 2595 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 44,889 psi | 70% | 2825 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 50,923 psi | 80% | 2756 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,011 psi | 82% | 2861 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,930 psi | 66% | 2700 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 30,995 psi | 49% | 2539 fps | 98.4% |
| Somchem S385 | <<locked>> | 92% | 43,163 psi | 68% | 2756 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 51,677 psi | 81% | 2743 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,892 psi | 75% | 2740 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,124 psi | 75% | 2749 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,929 psi | 63% | 2628 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 35,839 psi | 56% | 2589 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 98% | 45,252 psi | 71% | 2785 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 53,809 psi | 84% | 2871 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 46,514 psi | 73% | 2743 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,418 psi | 56% | 2589 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 84% | 30,908 psi | 48% | 2536 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,360 psi | 55% | 2562 fps | 98.6% |
| Winchester 760 | <<locked>> | 82% | 39,218 psi | 61% | 2700 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 88% | 28,326 psi | 44% | 2539 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,705 psi | 78% | 2848 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 45,643 psi | 72% | 2795 fps | 95% |
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 104 powders for .308 Norma Mag. loaded with the .308 | 165gr | Sierra SBT GameKing. Alliant Reloder-26 delivers the highest muzzle velocity at 3,097 fps; across all powders the maximum-charge window runs from 1,827 fps to 3,097 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 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 165.0 gr projectile in 0.308" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2209 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 | 165gr | Sierra SBT GameKing 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.