Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 150gr | Impala LWH CHP bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 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.
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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>> | 84% | 55,521 psi | 87% | 2959 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,767 psi | 87% | 2989 fps | 97% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,965 psi | 77% | 2959 fps | 97.4% |
| Accurate 4064 | <<locked>> | 86% | 55,492 psi | 87% | 3009 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,665 psi | 86% | 3087 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 84% | 57,159 psi | 90% | 3074 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,578 psi | 86% | 3018 fps | 99.7% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,187 psi | 86% | 3100 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,637 psi | 87% | 3015 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,203 psi | 90% | 2992 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,724 psi | 89% | 3196 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 54,360 psi | 85% | 3031 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,288 psi | 87% | 3045 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,622 psi | 87% | 3068 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,781 psi | 86% | 3136 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 92% | 55,956 psi | 88% | 3173 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,346 psi | 85% | 3091 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,745 psi | 72% | 2982 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,648 psi | 81% | 3166 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,652 psi | 89% | 3081 fps | 99.7% |
| Bofors RP3 | <<locked>> | 88% | 56,362 psi | 88% | 3064 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 55,782 psi | 87% | 3028 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 57,188 psi | 90% | 2999 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,796 psi | 87% | 3051 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,797 psi | 89% | 3077 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 94% | 56,536 psi | 89% | 3130 fps | 98% |
| Hodgdon H4350 | <<locked>> | 92% | 56,536 psi | 89% | 3084 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 84% | 57,725 psi | 90% | 3084 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,911 psi | 86% | 3061 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,522 psi | 90% | 3120 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,739 psi | 89% | 3159 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,289 psi | 57% | 1906 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,129 psi | 86% | 3028 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,694 psi | 86% | 3018 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,464 psi | 90% | 3054 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 57,000 psi | 89% | 3028 fps | 97.9% |
| IMR 4350 | <<locked>> | 96% | 55,941 psi | 88% | 3054 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,985 psi | 89% | 3058 fps | 97.9% |
| IMR 4831 | <<locked>> | 96% | 54,839 psi | 86% | 3071 fps | 99.5% |
| IMR 4895 | <<locked>> | 86% | 56,971 psi | 89% | 3097 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,637 psi | 87% | 3015 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 54,172 psi | 85% | 2999 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,825 psi | 87% | 2989 fps | 99.9% |
| Lovex S062 | <<locked>> | 86% | 54,563 psi | 86% | 3002 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 57,406 psi | 90% | 3058 fps | 99% |
| Lovex S070 | <<locked>> | 94% | 55,071 psi | 86% | 3041 fps | 97.9% |
| Norma 201 | <<locked>> | 84% | 56,347 psi | 88% | 3022 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,579 psi | 89% | 3018 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,897 psi | 86% | 3051 fps | 99.9% |
| Norma 204 | <<locked>> | 96% | 56,594 psi | 89% | 3104 fps | 96.1% |
| Norma MRPᴾ | <<locked>> | 100% | 50,908 psi | 80% | 3110 fps | 96.8% |
| Norma URP | <<locked>> | 96% | 56,463 psi | 88% | 3120 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 86% | 55,187 psi | 86% | 3074 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 96% | 55,187 psi | 86% | 3114 fps | 98.5% |
| Ramshot TAC | <<locked>> | 82% | 55,767 psi | 87% | 3031 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,898 psi | 88% | 3054 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,999 psi | 58% | 1952 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,666 psi | 89% | 3051 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,014 psi | 88% | 3133 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,608 psi | 87% | 3169 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,551 psi | 90% | 3159 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,260 psi | 88% | 3182 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 82% | 57,580 psi | 90% | 3005 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,898 psi | 89% | 3018 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 56,405 psi | 88% | 3061 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,505 psi | 84% | 3077 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 92% | 55,782 psi | 87% | 3028 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 57,406 psi | 90% | 3058 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 54,172 psi | 85% | 2999 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 54,563 psi | 86% | 3002 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 55,071 psi | 86% | 3041 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,363 psi | 90% | 3114 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,897 psi | 86% | 3015 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,332 psi | 87% | 3038 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,898 psi | 89% | 2946 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,406 psi | 90% | 2946 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,450 psi | 90% | 3005 fps | 98% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,997 psi | 83% | 3071 fps | 95.8% |
| Somchem S335 | <<locked>> | 84% | 56,768 psi | 89% | 2949 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,273 psi | 85% | 3002 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 56,347 psi | 88% | 3054 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,013 psi | 86% | 3127 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,520 psi | 85% | 3058 fps | 97% |
| Vihtavuori N133 | <<locked>> | 84% | 57,101 psi | 89% | 2930 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,724 psi | 89% | 2979 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,884 psi | 89% | 2992 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,493 psi | 90% | 3028 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,201 psi | 87% | 3058 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 82% | 56,289 psi | 88% | 3015 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 55,158 psi | 86% | 2986 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,578 psi | 86% | 3068 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,937 psi | 80% | 3068 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,868 psi | 86% | 3028 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,594 psi | 89% | 3068 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,797 psi | 89% | 3133 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,553 psi | 65% | 3015 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,347 psi | 87% | 3048 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 2495 | <<locked>> | 80% | 49,240 psi | 77% | 2861 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 49,211 psi | 77% | 2871 fps | 95.5% |
| Accurate 3100 | <<locked>> | 94% | 40,393 psi | 63% | 2789 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 46,485 psi | 73% | 2861 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,809 psi | 55% | 2680 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 50,589 psi | 79% | 2963 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 43,018 psi | 67% | 2799 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 98% | 51,953 psi | 81% | 3041 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,431 psi | 82% | 2963 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,940 psi | 85% | 2946 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,383 psi | 73% | 3005 fps | 98.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 51,256 psi | 80% | 2976 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,540 psi | 68% | 2835 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,369 psi | 73% | 2900 fps | 98.9% |
| Alliant Reloder-16 | 57.1 gr | 82% | 36,100 psi | 57% | 2733 fps | 95.8% |
| Alliant Reloder-17 | 60 gr | 80% | 37,927 psi | 59% | 2812 fps | 98.1% |
| Alliant Reloder-19 | <<locked>> | 98% | 51,184 psi | 80% | 3031 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 86% | 30,429 psi | 48% | 2595 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 37,014 psi | 58% | 2838 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,009 psi | 78% | 2969 fps | 99.1% |
| Bofors RP3 | <<locked>> | 80% | 43,874 psi | 69% | 2848 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 46,717 psi | 73% | 2864 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,737 psi | 84% | 2943 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,185 psi | 82% | 2992 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,324 psi | 69% | 2848 fps | 97.5% |
| Hodgdon H414 | <<locked>> | 86% | 43,830 psi | 69% | 2890 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 88% | 49,995 psi | 78% | 2966 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 51,111 psi | 80% | 2976 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,807 psi | 50% | 2582 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,427 psi | 74% | 2949 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 46,311 psi | 73% | 2966 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 43% | 1706 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,646 psi | 76% | 2917 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 51,329 psi | 80% | 2966 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,223 psi | 71% | 2838 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,587 psi | 75% | 2861 fps | 96.1% |
| IMR 4350 | <<locked>> | 90% | 46,702 psi | 73% | 2887 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 45,208 psi | 71% | 2838 fps | 95.3% |
| IMR 4831 | <<locked>> | 82% | 35,665 psi | 56% | 2687 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 47,456 psi | 74% | 2933 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 52,431 psi | 82% | 2963 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,995 psi | 80% | 2946 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,922 psi | 78% | 2887 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 45,905 psi | 72% | 2851 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 40,495 psi | 63% | 2740 fps | 95.6% |
| Lovex S070 | <<locked>> | 86% | 43,424 psi | 68% | 2822 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 50,082 psi | 78% | 2917 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,198 psi | 79% | 2917 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,774 psi | 72% | 2887 fps | 99.2% |
| Norma 204 | <<locked>> | 94% | 52,997 psi | 83% | 3041 fps | 95.3% |
| Norma MRP | <<locked>> | 96% | 44,701 psi | 70% | 2986 fps | 95.1% |
| Norma URP | <<locked>> | 82% | 36,666 psi | 57% | 2726 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 45,353 psi | 71% | 2900 fps | 99% |
| Ramshot Hunter | <<locked>> | 86% | 40,350 psi | 63% | 2822 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 52,475 psi | 82% | 2976 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,272 psi | 82% | 2995 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,789 psi | 44% | 1749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,135 psi | 69% | 2818 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,284 psi | 77% | 3015 fps | 99.2% |
| ReloadSwiss RS 60 | 60 gr | 80% | 40,147 psi | 63% | 2877 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 36,521 psi | 57% | 2746 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 38,189 psi | 60% | 2802 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 54,563 psi | 86% | 2956 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,863 psi | 75% | 2867 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 41,495 psi | 65% | 2792 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 98% | 50,241 psi | 79% | 3018 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 86% | 46,717 psi | 73% | 2864 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 82% | 40,495 psi | 63% | 2740 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,995 psi | 80% | 2946 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,905 psi | 72% | 2851 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 43,424 psi | 68% | 2822 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,829 psi | 66% | 2831 fps | 98.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,547 psi | 81% | 2956 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,023 psi | 77% | 2930 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,604 psi | 79% | 2851 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,714 psi | 67% | 2710 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 44,817 psi | 70% | 2782 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 49,806 psi | 78% | 3015 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 50,560 psi | 79% | 2854 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,894 psi | 80% | 2946 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 41,901 psi | 66% | 2792 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 31,299 psi | 49% | 2628 fps | 97.3% |
| Somchem S385 | <<locked>> | 96% | 48,124 psi | 75% | 2943 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 50,836 psi | 80% | 2838 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,369 psi | 74% | 2838 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,572 psi | 75% | 2844 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,871 psi | 62% | 2720 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 35,723 psi | 56% | 2671 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 52,765 psi | 83% | 2963 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 46,137 psi | 72% | 2838 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,505 psi | 56% | 2677 fps | 95% |
| Vihtavuori N555 | <<locked>> | 86% | 33,098 psi | 52% | 2680 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,259 psi | 55% | 2641 fps | 97.5% |
| Winchester 748 | <<locked>> | 80% | 53,084 psi | 83% | 3015 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 44,063 psi | 69% | 2897 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 90% | 30,676 psi | 48% | 2680 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,791 psi | 76% | 2936 fps | 99.7% |
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 116 powders for .308 Norma Mag. loaded with the .308 | 150gr | Impala LWH CHP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,196 fps; across all powders the maximum-charge window runs from 1,906 fps to 3,196 fps. Accurate 3100 gives the best case fill at 100 %, and 116 of the 116 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 150.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, Accurate MAGPRO 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. Alliant Reloder-17, ReloadSwiss RS 60, Alliant Reloder-16 rank at the top here: for .308 Norma Mag. with the .308 | 150gr | Impala LWH CHP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate High Country, Accurate MAGPRO, ADI AR 2213 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.