Load Specifications
Bullet Manufacturer:Hammer
Bullet Weight:166 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:1:12.5
Load data in caliber .308 Norma Mag. with .308 | 166gr | Hammer Stone Hammer 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 60, ReloadSwiss RS 70 and Alliant Reloder-16.
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% | 56,869 psi | 89% | 2828 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,912 psi | 88% | 2851 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 57,624 psi | 90% | 2923 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 54,839 psi | 86% | 2867 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,268 psi | 74% | 2828 fps | 98.1% |
| Accurate 4064 | <<locked>> | 88% | 56,275 psi | 88% | 2904 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,029 psi | 89% | 3009 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 56,159 psi | 88% | 2940 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 57,435 psi | 90% | 2943 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,013 psi | 86% | 2992 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,042 psi | 86% | 2887 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,492 psi | 89% | 2858 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,594 psi | 89% | 3071 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 54,839 psi | 86% | 2989 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 57,740 psi | 90% | 2966 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,563 psi | 86% | 2933 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,317 psi | 85% | 3012 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 55,825 psi | 87% | 3045 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,012 psi | 85% | 2979 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,527 psi | 70% | 2854 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,059 psi | 61% | 2753 fps | 96.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,894 psi | 80% | 3045 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,159 psi | 88% | 2956 fps | 100% |
| Bofors RP3 | <<locked>> | 88% | 54,781 psi | 86% | 2927 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 54,766 psi | 86% | 2907 fps | 98.1% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,376 psi | 88% | 2864 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,723 psi | 86% | 2917 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,637 psi | 87% | 2946 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 94% | 55,927 psi | 88% | 3005 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 92% | 56,217 psi | 88% | 2969 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 84% | 56,768 psi | 89% | 2949 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,549 psi | 85% | 2936 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,840 psi | 89% | 2986 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,405 psi | 88% | 3045 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,839 psi | 56% | 1811 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,447 psi | 85% | 2897 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,290 psi | 90% | 2927 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,797 psi | 89% | 2927 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,304 psi | 88% | 2907 fps | 98.7% |
| IMR 4350 | <<locked>> | 96% | 55,347 psi | 87% | 2936 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,594 psi | 89% | 2940 fps | 98.7% |
| IMR 4831 | <<locked>> | 98% | 57,580 psi | 90% | 2999 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 55,999 psi | 88% | 2966 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,042 psi | 86% | 2887 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,260 psi | 88% | 2913 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,332 psi | 87% | 2867 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,623 psi | 89% | 2917 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,072 psi | 88% | 2930 fps | 99.5% |
| Lovex S070 | <<locked>> | 96% | 57,421 psi | 90% | 2969 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,928 psi | 61% | 2667 fps | 96% |
| Norma 201 | <<locked>> | 84% | 54,694 psi | 86% | 2881 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,419 psi | 87% | 2881 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,334 psi | 90% | 2972 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,173 psi | 88% | 2989 fps | 97.2% |
| Norma MRPᴾ | <<locked>> | 100% | 50,082 psi | 78% | 2992 fps | 97.8% |
| Norma URP | <<locked>> | 96% | 55,970 psi | 88% | 2995 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 54,665 psi | 86% | 2946 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 54,650 psi | 86% | 2992 fps | 99.2% |
| Ramshot TAC | <<locked>> | 82% | 55,042 psi | 86% | 2907 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,143 psi | 86% | 2927 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,448 psi | 57% | 1854 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,898 psi | 88% | 2930 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,361 psi | 87% | 3002 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,361 psi | 87% | 3041 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,116 psi | 90% | 3035 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,101 psi | 88% | 3064 fps | 99.9% |
| Rottweil R 901 | <<locked>> | 82% | 55,463 psi | 87% | 2858 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,230 psi | 87% | 2881 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 54,911 psi | 86% | 2923 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 56,884 psi | 89% | 2963 fps | 96.3% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,852 psi | 83% | 2959 fps | 97% |
| Rottweil R 907 | <<locked>> | 92% | 54,766 psi | 86% | 2907 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,072 psi | 88% | 2930 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,260 psi | 88% | 2913 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,623 psi | 89% | 2917 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 57,421 psi | 90% | 2969 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 56,681 psi | 89% | 2982 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,450 psi | 90% | 2943 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,534 psi | 85% | 2907 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,086 psi | 88% | 2818 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,724 psi | 89% | 2818 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,130 psi | 88% | 2884 fps | 98.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,359 psi | 82% | 2953 fps | 96.9% |
| Somchem S335 | <<locked>> | 84% | 55,448 psi | 87% | 2812 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,203 psi | 90% | 2930 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,056 psi | 86% | 2920 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 54,694 psi | 86% | 2995 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,505 psi | 84% | 2936 fps | 97.9% |
| Vihtavuori N133 | <<locked>> | 84% | 56,550 psi | 89% | 2799 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,492 psi | 87% | 2841 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,231 psi | 88% | 2861 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,608 psi | 89% | 2897 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,665 psi | 86% | 2936 fps | 99.8% |
| Vihtavuori N530 | <<locked>> | 82% | 55,361 psi | 87% | 2884 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 54,128 psi | 85% | 2854 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 57,319 psi | 90% | 2995 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,777 psi | 78% | 2933 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,665 psi | 86% | 2910 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,883 psi | 88% | 2936 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,188 psi | 88% | 3012 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,016 psi | 63% | 2884 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,578 psi | 86% | 2917 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,328 psi | 79% | 2871 fps | 96.1% |
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 2015 | <<locked>> | 80% | 53,272 psi | 83% | 2779 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,716 psi | 72% | 2700 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 54,012 psi | 85% | 2871 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,715 psi | 70% | 2690 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 38,145 psi | 60% | 2651 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 43,308 psi | 68% | 2703 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,387 psi | 51% | 2533 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 49,472 psi | 78% | 2831 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 41,945 psi | 66% | 2677 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 48,008 psi | 75% | 2867 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,648 psi | 81% | 2835 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,808 psi | 83% | 2808 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,730 psi | 72% | 2884 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 47,964 psi | 75% | 2867 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,858 psi | 66% | 2697 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,034 psi | 71% | 2769 fps | 99.3% |
| Alliant Reloder-16 | 55.3 gr | 80% | 32,489 psi | 51% | 2549 fps | 95.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,405 psi | 57% | 2677 fps | 98.7% |
| Alliant Reloder-19 | <<locked>> | 96% | 47,268 psi | 74% | 2858 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,311 psi | 44% | 2454 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 98% | 36,637 psi | 57% | 2690 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 90% | 35,172 psi | 55% | 2703 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,110 psi | 77% | 2841 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 41,800 psi | 66% | 2703 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 42,380 psi | 66% | 2680 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,026 psi | 83% | 2815 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,111 psi | 80% | 2861 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,467 psi | 67% | 2710 fps | 98% |
| Hodgdon H414 | <<locked>> | 84% | 39,958 psi | 63% | 2710 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 86% | 46,253 psi | 72% | 2792 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 50,024 psi | 78% | 2841 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,820 psi | 47% | 2444 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,369 psi | 73% | 2818 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 42,192 psi | 66% | 2782 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,629 psi | 42% | 1617 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,921 psi | 75% | 2792 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 50,314 psi | 79% | 2828 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,092 psi | 69% | 2713 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,456 psi | 73% | 2736 fps | 96.9% |
| IMR 4350 | <<locked>> | 88% | 42,989 psi | 67% | 2713 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 41,408 psi | 65% | 2661 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 31,430 psi | 49% | 2490 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 46,195 psi | 72% | 2799 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 51,648 psi | 81% | 2835 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,124 psi | 77% | 2805 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,834 psi | 77% | 2759 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 44,019 psi | 69% | 2710 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 36,100 psi | 57% | 2546 fps | 95.3% |
| Lovex S070 | <<locked>> | 84% | 39,175 psi | 61% | 2638 fps | 95.1% |
| Lovex S071 | <<locked>> | 98% | 36,477 psi | 57% | 2612 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 48,124 psi | 75% | 2776 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,733 psi | 76% | 2779 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,367 psi | 70% | 2756 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 49,008 psi | 77% | 2867 fps | 95.7% |
| Norma MRP | <<locked>> | 94% | 40,654 psi | 64% | 2799 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 32,605 psi | 51% | 2533 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 44,425 psi | 70% | 2776 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 86% | 39,001 psi | 61% | 2694 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 51,561 psi | 81% | 2851 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,576 psi | 81% | 2871 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,079 psi | 42% | 1657 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,656 psi | 67% | 2694 fps | 96.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,167 psi | 75% | 2884 fps | 99.7% |
| ReloadSwiss RS 60 | 59.5 gr | 80% | 38,769 psi | 61% | 2743 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 34,664 psi | 54% | 2608 fps | 96% |
| ReloadSwiss RS 70 | 62 gr | 82% | 34,272 psi | 54% | 2615 fps | 95% |
| Rottweil R 901 | <<locked>> | 80% | 52,054 psi | 82% | 2808 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,774 psi | 72% | 2726 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,189 psi | 61% | 2648 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 98% | 53,287 psi | 84% | 2907 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 96% | 46,151 psi | 72% | 2838 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 84% | 42,380 psi | 66% | 2680 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,100 psi | 57% | 2546 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,124 psi | 77% | 2805 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,019 psi | 69% | 2710 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 39,175 psi | 61% | 2638 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,509 psi | 63% | 2703 fps | 98.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,082 psi | 78% | 2828 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,921 psi | 75% | 2799 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,429 psi | 77% | 2720 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,423 psi | 65% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 40,350 psi | 63% | 2602 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 45,730 psi | 72% | 2835 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 48,950 psi | 77% | 2717 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,966 psi | 78% | 2818 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 39,842 psi | 62% | 2651 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 29,312 psi | 46% | 2487 fps | 97.7% |
| Somchem S385 | <<locked>> | 94% | 43,743 psi | 69% | 2762 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 49,951 psi | 78% | 2707 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,861 psi | 72% | 2700 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,166 psi | 72% | 2710 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,971 psi | 60% | 2582 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 34,156 psi | 54% | 2543 fps | 96% |
| Vihtavuori N530 | <<locked>> | 80% | 51,866 psi | 81% | 2831 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,643 psi | 70% | 2703 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,576 psi | 53% | 2536 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 86% | 30,792 psi | 48% | 2530 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,663 psi | 53% | 2516 fps | 98.1% |
| Winchester 748 | <<locked>> | 80% | 52,141 psi | 82% | 2881 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 39,958 psi | 63% | 2710 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,413 psi | 45% | 2539 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,834 psi | 75% | 2808 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 46,760 psi | 73% | 2808 fps | 95.2% |
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 | 166gr | Hammer Stone Hammer. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,811 fps to 3,071 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 166.0 gr projectile in 0.308" calls for a 1:12.5 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 60, ReloadSwiss RS 70, Alliant Reloder-16 rank at the top here: for .308 Norma Mag. with the .308 | 166gr | Hammer Stone Hammer 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.