Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 155gr | Berger VLD Target bullet and 97 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.
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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 2015 | <<locked>> | 82% | 55,738 psi | 87% | 2904 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 54,984 psi | 86% | 2930 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,463 psi | 88% | 2995 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,145 psi | 90% | 2982 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,788 psi | 72% | 2881 fps | 97.1% |
| Accurate 4064 | <<locked>> | 88% | 55,100 psi | 86% | 2979 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,463 psi | 87% | 3071 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 84% | 54,824 psi | 86% | 3009 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 55,956 psi | 88% | 3009 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,214 psi | 83% | 3041 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,116 psi | 90% | 3009 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 54,998 psi | 86% | 2930 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 54,694 psi | 86% | 3130 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 55,535 psi | 87% | 3018 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,188 psi | 88% | 3031 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 56,855 psi | 89% | 3058 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,246 psi | 88% | 3130 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 57,696 psi | 90% | 3166 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,228 psi | 82% | 3028 fps | 95.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,323 psi | 68% | 2910 fps | 99.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,110 psi | 77% | 3094 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 54,839 psi | 86% | 3022 fps | 99.7% |
| Bofors RP3 | <<locked>> | 90% | 57,203 psi | 90% | 3051 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 56,855 psi | 89% | 3022 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,158 psi | 86% | 2936 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 56,956 psi | 89% | 3038 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,172 psi | 85% | 3005 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 94% | 54,317 psi | 85% | 3064 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 92% | 54,520 psi | 85% | 3022 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 84% | 55,376 psi | 87% | 3018 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,304 psi | 88% | 3048 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,303 psi | 87% | 3054 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 54,621 psi | 86% | 3097 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,824 psi | 56% | 1873 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 56,492 psi | 89% | 3018 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 55,709 psi | 87% | 2999 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,347 psi | 87% | 2989 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,969 psi | 86% | 2969 fps | 97.9% |
| IMR 4350 | <<locked>> | 98% | 57,406 psi | 90% | 3048 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,100 psi | 86% | 2999 fps | 97.9% |
| IMR 4831 | <<locked>> | 98% | 55,695 psi | 87% | 3058 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 54,549 psi | 85% | 3028 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 57,116 psi | 90% | 3009 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 54,839 psi | 86% | 2982 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,522 psi | 90% | 2986 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,550 psi | 87% | 2989 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 54,897 psi | 86% | 2992 fps | 98.9% |
| Lovex S070 | <<locked>> | 96% | 55,840 psi | 88% | 3028 fps | 98.3% |
| Norma 201 | <<locked>> | 86% | 57,058 psi | 89% | 3002 fps | 100% |
| Norma 202 | <<locked>> | 86% | 57,595 psi | 90% | 3002 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,072 psi | 88% | 3041 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,549 psi | 85% | 3041 fps | 96.1% |
| Norma MRPᴾ | <<locked>> | 100% | 48,559 psi | 76% | 3041 fps | 96.7% |
| Norma URP | <<locked>> | 96% | 54,114 psi | 85% | 3054 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 88% | 56,927 psi | 89% | 3071 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 56,724 psi | 89% | 3107 fps | 99% |
| Ramshot TAC | <<locked>> | 84% | 57,508 psi | 90% | 3031 fps | 99.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,377 psi | 90% | 3048 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,448 psi | 57% | 1916 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,433 psi | 85% | 2989 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 57,522 psi | 90% | 3127 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 57,261 psi | 90% | 3159 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,042 psi | 86% | 3091 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,128 psi | 85% | 3117 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 82% | 54,592 psi | 86% | 2933 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 57,580 psi | 90% | 3002 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,058 psi | 89% | 3041 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 56,855 psi | 89% | 3022 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 54,897 psi | 86% | 2992 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 54,839 psi | 86% | 2982 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,550 psi | 87% | 2989 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 55,840 psi | 88% | 3028 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,201 psi | 87% | 3051 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,231 psi | 88% | 3012 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 56,724 psi | 89% | 3031 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,897 psi | 86% | 2890 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,317 psi | 87% | 2887 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 54,998 psi | 86% | 2943 fps | 97.9% |
| Somchem S335 | <<locked>> | 86% | 57,711 psi | 90% | 2933 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 55,854 psi | 88% | 2999 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,174 psi | 90% | 3038 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,260 psi | 88% | 3114 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 51,982 psi | 81% | 2989 fps | 96.9% |
| Vihtavuori N133 | <<locked>> | 84% | 55,274 psi | 87% | 2874 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 57,725 psi | 90% | 2963 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 54,853 psi | 86% | 2933 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,071 psi | 86% | 2966 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 56,710 psi | 89% | 3054 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 54,070 psi | 85% | 2953 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,405 psi | 88% | 2972 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 55,550 psi | 87% | 3054 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,993 psi | 75% | 2989 fps | 99.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 56,826 psi | 89% | 3025 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,331 psi | 85% | 3002 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,534 psi | 85% | 3068 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,812 psi | 61% | 2927 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 86% | 57,014 psi | 89% | 3041 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% | 52,286 psi | 82% | 2851 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,150 psi | 71% | 2779 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 52,750 psi | 83% | 2940 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 46,818 psi | 73% | 2805 fps | 95.3% |
| Accurate 3100 | <<locked>> | 96% | 39,943 psi | 63% | 2762 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 42,685 psi | 67% | 2772 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 34,055 psi | 53% | 2644 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 48,428 psi | 76% | 2897 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 41,089 psi | 64% | 2736 fps | 98% |
| ADI AR 2209 | <<locked>> | 98% | 49,922 psi | 78% | 2979 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,473 psi | 79% | 2904 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,430 psi | 81% | 2881 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,425 psi | 70% | 2936 fps | 98.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 49,052 psi | 77% | 2910 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,959 psi | 64% | 2759 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,019 psi | 69% | 2831 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 82% | 33,968 psi | 53% | 2661 fps | 95.3% |
| Alliant Reloder-17 | 59.8 gr | 80% | 35,694 psi | 56% | 2736 fps | 97.8% |
| Alliant Reloder-19 | <<locked>> | 98% | 49,081 psi | 77% | 2969 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,660 psi | 46% | 2559 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 92% | 36,709 psi | 58% | 2812 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,805 psi | 75% | 2900 fps | 99% |
| Bofors RP3 | <<locked>> | 80% | 40,988 psi | 64% | 2766 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 47,137 psi | 74% | 2851 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,924 psi | 81% | 2884 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 49,850 psi | 78% | 2927 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,611 psi | 65% | 2769 fps | 97.2% |
| Hodgdon H414 | <<locked>> | 88% | 44,454 psi | 70% | 2881 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 88% | 47,921 psi | 75% | 2904 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 48,907 psi | 77% | 2910 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,298 psi | 46% | 2497 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,063 psi | 71% | 2877 fps | 99.7% |
| Hodgdon Superformance | 69.5 gr | 88% | 44,048 psi | 69% | 2897 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 42% | 1673 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,804 psi | 73% | 2854 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 48,805 psi | 76% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,134 psi | 68% | 2772 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,513 psi | 71% | 2795 fps | 95.9% |
| IMR 4350 | <<locked>> | 90% | 44,585 psi | 70% | 2822 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,120 psi | 68% | 2772 fps | 95.1% |
| IMR 4831 | <<locked>> | 84% | 35,186 psi | 55% | 2657 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 45,136 psi | 71% | 2864 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 50,473 psi | 79% | 2904 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,022 psi | 75% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,863 psi | 75% | 2825 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 43,178 psi | 68% | 2776 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 37,826 psi | 59% | 2661 fps | 95.1% |
| Lovex S070 | <<locked>> | 88% | 43,584 psi | 68% | 2805 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 47,268 psi | 74% | 2841 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 47,688 psi | 75% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,395 psi | 68% | 2818 fps | 99% |
| Norma 204 | <<locked>> | 94% | 50,879 psi | 80% | 2979 fps | 95.2% |
| Norma MRP | <<locked>> | 98% | 45,281 psi | 71% | 2972 fps | 95.7% |
| Norma URP | <<locked>> | 82% | 34,258 psi | 54% | 2648 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 43,221 psi | 68% | 2831 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 88% | 40,640 psi | 64% | 2805 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 50,372 psi | 79% | 2910 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,285 psi | 79% | 2933 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,151 psi | 43% | 1716 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,945 psi | 66% | 2753 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,775 psi | 73% | 2943 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,985 psi | 60% | 2805 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 36,245 psi | 57% | 2723 fps | 95.7% |
| ReloadSwiss RS 70 | 65.2 gr | 86% | 38,363 psi | 60% | 2789 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 51,329 psi | 80% | 2884 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,005 psi | 71% | 2792 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 38,435 psi | 60% | 2707 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 47,137 psi | 74% | 2851 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 82% | 37,826 psi | 59% | 2661 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,022 psi | 75% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,178 psi | 68% | 2776 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 43,584 psi | 68% | 2805 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,494 psi | 62% | 2759 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 48,921 psi | 77% | 2887 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,775 psi | 73% | 2861 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,472 psi | 76% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,625 psi | 64% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 42,409 psi | 66% | 2717 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 48,080 psi | 75% | 2789 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,689 psi | 76% | 2884 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 39,131 psi | 61% | 2710 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 28,761 psi | 45% | 2539 fps | 96.6% |
| Somchem S385 | <<locked>> | 96% | 45,527 psi | 71% | 2871 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 48,921 psi | 77% | 2782 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 44,904 psi | 70% | 2772 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,165 psi | 71% | 2779 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,231 psi | 58% | 2641 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 82% | 35,665 psi | 56% | 2651 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 50,720 psi | 79% | 2900 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,685 psi | 68% | 2769 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 35,244 psi | 55% | 2651 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 88% | 32,140 psi | 50% | 2638 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,996 psi | 52% | 2566 fps | 97.1% |
| Winchester 748 | <<locked>> | 80% | 50,734 psi | 80% | 2946 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 44,614 psi | 70% | 2884 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 92% | 29,921 psi | 47% | 2648 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,615 psi | 73% | 2871 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 118 powders for .308 Norma Mag. loaded with the .308 | 155gr | Berger VLD Target. Alliant Reloder-17 delivers the highest muzzle velocity at 3,166 fps; across all powders the maximum-charge window runs from 1,873 fps to 3,166 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 1:12.5 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .308 Norma Mag. with the .308 | 155gr | Berger VLD Target 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.