Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 155gr | Nosler Custom Competition bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon H414 and Winchester 760.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 57,145 psi | 90% | 2930 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 56,565 psi | 89% | 2956 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 54,853 psi | 86% | 2959 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,718 psi | 75% | 2923 fps | 97.7% |
| Accurate 4064 | <<locked>> | 88% | 56,884 psi | 89% | 3012 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,290 psi | 90% | 3107 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 56,202 psi | 88% | 3038 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 57,406 psi | 90% | 3041 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,085 psi | 86% | 3084 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,143 psi | 86% | 2989 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,507 psi | 89% | 2956 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,536 psi | 89% | 3169 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,014 psi | 89% | 3051 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,418 psi | 85% | 3012 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,781 psi | 86% | 3035 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,433 psi | 85% | 3110 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 55,767 psi | 87% | 3143 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,099 psi | 85% | 3071 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,904 psi | 70% | 2949 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,894 psi | 80% | 3133 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,246 psi | 88% | 3054 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 55,259 psi | 87% | 3031 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 54,766 psi | 86% | 2999 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,565 psi | 89% | 2966 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,882 psi | 86% | 3015 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,898 psi | 88% | 3045 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 56,188 psi | 88% | 3104 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 92% | 56,115 psi | 88% | 3061 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 84% | 56,855 psi | 89% | 3048 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,389 psi | 85% | 3031 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,942 psi | 89% | 3087 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,478 psi | 89% | 3140 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,984 psi | 56% | 1886 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,447 psi | 85% | 2995 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,421 psi | 90% | 3031 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,956 psi | 89% | 3025 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,405 psi | 88% | 3002 fps | 98.3% |
| IMR 4350 | <<locked>> | 96% | 55,448 psi | 87% | 3028 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,666 psi | 89% | 3031 fps | 98.3% |
| IMR 4831 | <<locked>> | 98% | 57,595 psi | 90% | 3097 fps | 99.9% |
| IMR 4895 | <<locked>> | 86% | 56,217 psi | 88% | 3064 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,143 psi | 86% | 2989 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,550 psi | 89% | 3012 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,463 psi | 87% | 2966 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,913 psi | 89% | 3018 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,449 psi | 88% | 3028 fps | 99.2% |
| Lovex S070 | <<locked>> | 96% | 57,696 psi | 90% | 3068 fps | 98.7% |
| Norma 201 | <<locked>> | 84% | 55,027 psi | 86% | 2982 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,564 psi | 87% | 2979 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,667 psi | 90% | 3074 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,275 psi | 88% | 3081 fps | 96.7% |
| Norma MRPᴾ | <<locked>> | 100% | 50,270 psi | 79% | 3081 fps | 97.3% |
| Norma URP | <<locked>> | 96% | 56,086 psi | 88% | 3091 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 54,708 psi | 86% | 3045 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 54,766 psi | 86% | 3087 fps | 98.8% |
| Ramshot TAC | <<locked>> | 82% | 55,303 psi | 87% | 3005 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,216 psi | 87% | 3025 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,593 psi | 57% | 1932 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,028 psi | 88% | 3025 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,405 psi | 87% | 3100 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,419 psi | 87% | 3140 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,174 psi | 90% | 3130 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,014 psi | 88% | 3159 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 55,956 psi | 88% | 2963 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,506 psi | 87% | 2979 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,114 psi | 86% | 3022 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,997 psi | 83% | 3051 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 92% | 54,766 psi | 86% | 2999 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,449 psi | 88% | 3028 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,550 psi | 89% | 3012 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,913 psi | 89% | 3018 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 57,696 psi | 90% | 3068 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 56,913 psi | 89% | 3084 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,740 psi | 90% | 3045 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,694 psi | 86% | 3009 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,130 psi | 88% | 2917 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,637 psi | 89% | 2913 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,478 psi | 89% | 2976 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,504 psi | 82% | 3045 fps | 96.3% |
| Somchem S335 | <<locked>> | 84% | 55,695 psi | 87% | 2913 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,305 psi | 90% | 3031 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,230 psi | 87% | 3018 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 54,621 psi | 86% | 3094 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,882 psi | 84% | 3031 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 84% | 56,521 psi | 89% | 2900 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,767 psi | 87% | 2943 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,217 psi | 88% | 2959 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,768 psi | 89% | 2995 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,810 psi | 86% | 3035 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 55,434 psi | 87% | 2982 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 54,534 psi | 85% | 2956 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 57,595 psi | 90% | 3094 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,893 psi | 78% | 3028 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,650 psi | 86% | 3005 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,014 psi | 88% | 3035 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,188 psi | 88% | 3104 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,248 psi | 63% | 2969 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,853 psi | 86% | 3015 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% | 53,693 psi | 84% | 2881 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,528 psi | 73% | 2805 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,179 psi | 71% | 2785 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 38,769 psi | 61% | 2743 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 44,019 psi | 69% | 2805 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 35,331 psi | 55% | 2684 fps | 96% |
| ADI AR 2206H | <<locked>> | 80% | 49,617 psi | 78% | 2927 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 42,163 psi | 66% | 2769 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 98% | 51,503 psi | 81% | 3018 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,692 psi | 81% | 2933 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,939 psi | 83% | 2910 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,701 psi | 72% | 2972 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 50,270 psi | 79% | 2940 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,148 psi | 66% | 2792 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,208 psi | 71% | 2861 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,822 psi | 51% | 2635 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,811 psi | 58% | 2769 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 50,662 psi | 79% | 3009 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,661 psi | 48% | 2598 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 90% | 35,563 psi | 56% | 2789 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,269 psi | 77% | 2936 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 42,163 psi | 66% | 2799 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 45,440 psi | 71% | 2828 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,084 psi | 83% | 2913 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,213 psi | 80% | 2956 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,873 psi | 67% | 2805 fps | 97.6% |
| Hodgdon H414 | 64.6 gr | 86% | 42,859 psi | 67% | 2854 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 88% | 49,530 psi | 78% | 2943 fps | 95.8% |
| Hodgdon H4895 | <<locked>> | 80% | 50,125 psi | 79% | 2940 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,226 psi | 47% | 2530 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,441 psi | 73% | 2910 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 45,527 psi | 71% | 2936 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,716 psi | 42% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,993 psi | 75% | 2887 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 50,256 psi | 79% | 2927 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,309 psi | 69% | 2805 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,746 psi | 73% | 2831 fps | 96.4% |
| IMR 4350 | <<locked>> | 90% | 46,050 psi | 72% | 2861 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 44,266 psi | 69% | 2805 fps | 95.7% |
| IMR 4831 | <<locked>> | 82% | 34,127 psi | 53% | 2638 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 46,340 psi | 73% | 2894 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 51,692 psi | 81% | 2933 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,458 psi | 78% | 2904 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,008 psi | 77% | 2854 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 44,396 psi | 70% | 2808 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 38,986 psi | 61% | 2697 fps | 95.7% |
| Lovex S070 | <<locked>> | 86% | 42,076 psi | 66% | 2782 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 48,501 psi | 76% | 2874 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,936 psi | 77% | 2877 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,570 psi | 70% | 2848 fps | 99.3% |
| Norma 204 | <<locked>> | 92% | 49,168 psi | 77% | 2956 fps | 95% |
| Norma MRP | <<locked>> | 96% | 43,888 psi | 69% | 2953 fps | 95.5% |
| Norma URP | <<locked>> | 82% | 35,331 psi | 55% | 2680 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 44,483 psi | 70% | 2864 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 39,349 psi | 62% | 2785 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 51,764 psi | 81% | 2946 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,590 psi | 81% | 2966 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,166 psi | 43% | 1726 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,105 psi | 68% | 2789 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,312 psi | 76% | 2979 fps | 99.4% |
| ReloadSwiss RS 60 | 61.5 gr | 80% | 39,146 psi | 61% | 2838 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 34,925 psi | 55% | 2697 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 36,970 psi | 58% | 2762 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 52,678 psi | 83% | 2913 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,224 psi | 72% | 2825 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 39,827 psi | 62% | 2743 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 49,429 psi | 77% | 2989 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 86% | 45,440 psi | 71% | 2828 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,986 psi | 61% | 2697 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,458 psi | 78% | 2904 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,396 psi | 70% | 2808 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 42,076 psi | 66% | 2782 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,727 psi | 64% | 2792 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,430 psi | 79% | 2923 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,095 psi | 75% | 2894 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,559 psi | 78% | 2815 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,611 psi | 65% | 2674 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,497 psi | 68% | 2749 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 48,950 psi | 77% | 2979 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 49,255 psi | 77% | 2815 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,169 psi | 79% | 2917 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 40,277 psi | 63% | 2743 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 29,704 psi | 47% | 2572 fps | 97.2% |
| Somchem S385 | <<locked>> | 94% | 44,106 psi | 69% | 2851 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 50,009 psi | 78% | 2805 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,050 psi | 72% | 2799 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,572 psi | 73% | 2808 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,479 psi | 60% | 2677 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 34,389 psi | 54% | 2625 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 51,895 psi | 81% | 2927 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,933 psi | 70% | 2799 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,982 psi | 53% | 2625 fps | 95% |
| Vihtavuori N555 | <<locked>> | 86% | 31,357 psi | 49% | 2621 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,040 psi | 53% | 2602 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 52,185 psi | 82% | 2976 fps | 100% |
| Winchester 760 | 64.7 gr | 86% | 43,004 psi | 67% | 2858 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,993 psi | 45% | 2621 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,921 psi | 75% | 2900 fps | 99.8% |
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 118 powders for .308 Norma Mag. loaded with the .308 | 155gr | Nosler Custom Competition. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,169 fps; across all powders the maximum-charge window runs from 1,886 fps to 3,169 fps. Accurate 3100 gives the best case fill at 100 %, and 118 of the 118 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 155.0 gr projectile in 0.308" calls for a 1:14.5 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. ReloadSwiss RS 60, Hodgdon H414, Winchester 760 rank at the top here: for .308 Norma Mag. with the .308 | 155gr | Nosler Custom Competition 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.