Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 155gr | Frontier RSBT 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 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% | 54,737 psi | 86% | 2884 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 57,421 psi | 90% | 2959 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,303 psi | 87% | 2976 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 56,043 psi | 88% | 2959 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,483 psi | 70% | 2851 fps | 96.6% |
| Accurate 4064 | <<locked>> | 90% | 57,537 psi | 90% | 3012 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,882 psi | 84% | 3041 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 57,479 psi | 90% | 3045 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,969 psi | 86% | 2989 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,289 psi | 88% | 2989 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 57,334 psi | 90% | 2959 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,580 psi | 90% | 3173 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 54,708 psi | 86% | 3002 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,143 psi | 86% | 3012 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,811 psi | 87% | 3035 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 55,085 psi | 86% | 3107 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,521 psi | 89% | 3143 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,163 psi | 66% | 2881 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,732 psi | 75% | 3061 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,348 psi | 90% | 3058 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 55,869 psi | 88% | 3028 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,753 psi | 87% | 2995 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,331 psi | 85% | 2920 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,941 psi | 88% | 3018 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,710 psi | 89% | 3041 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 96% | 56,724 psi | 89% | 3100 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 94% | 57,145 psi | 90% | 3058 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 84% | 54,549 psi | 85% | 2999 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 55,071 psi | 86% | 3028 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 54,027 psi | 85% | 3031 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,406 psi | 90% | 3136 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,665 psi | 56% | 1860 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,709 psi | 87% | 3002 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,665 psi | 86% | 2982 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,592 psi | 86% | 2976 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,070 psi | 85% | 2946 fps | 97.6% |
| IMR 4350 | <<locked>> | 98% | 56,333 psi | 88% | 3028 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,696 psi | 90% | 3031 fps | 98.2% |
| IMR 4831 | <<locked>> | 98% | 54,534 psi | 85% | 3038 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 57,261 psi | 90% | 3068 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 56,289 psi | 88% | 2989 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,537 psi | 90% | 3015 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,507 psi | 89% | 2963 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,447 psi | 85% | 2969 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,203 psi | 90% | 3025 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 54,737 psi | 86% | 3005 fps | 98% |
| Norma 201 | <<locked>> | 86% | 56,159 psi | 88% | 2986 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,739 psi | 89% | 2986 fps | 100% |
| Norma 203B | <<locked>> | 88% | 55,027 psi | 86% | 3022 fps | 100% |
| Norma 204 | <<locked>> | 98% | 57,188 psi | 90% | 3081 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 47,398 psi | 74% | 3012 fps | 96.2% |
| Norma URP | <<locked>> | 98% | 56,521 psi | 89% | 3087 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 55,695 psi | 87% | 3048 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,390 psi | 87% | 3084 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 56,623 psi | 89% | 3012 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,347 psi | 88% | 3028 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,942 psi | 89% | 2989 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,274 psi | 57% | 1906 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,985 psi | 89% | 3025 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,362 psi | 88% | 3104 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 56,057 psi | 88% | 3140 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,537 psi | 90% | 3123 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,797 psi | 89% | 3156 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 84% | 56,855 psi | 89% | 2963 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,739 psi | 89% | 2986 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,956 psi | 88% | 3022 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 55,753 psi | 87% | 2995 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,203 psi | 90% | 3025 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,537 psi | 90% | 3015 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,447 psi | 85% | 2969 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,737 psi | 86% | 3005 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,551 psi | 90% | 3084 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,013 psi | 86% | 2986 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,753 psi | 87% | 3012 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,334 psi | 90% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,288 psi | 85% | 2867 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,522 psi | 90% | 2976 fps | 98.2% |
| Somchem S321 | <<locked>> | 82% | 57,551 psi | 90% | 3022 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,927 psi | 89% | 2917 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,621 psi | 86% | 2976 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 56,159 psi | 88% | 3018 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,926 psi | 86% | 3091 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,720 psi | 79% | 2963 fps | 96.5% |
| Vihtavuori N130 | <<locked>> | 82% | 57,043 psi | 89% | 2877 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,638 psi | 90% | 2900 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,507 psi | 89% | 2943 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,290 psi | 90% | 2963 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,493 psi | 90% | 2992 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,245 psi | 87% | 3028 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 56,768 psi | 89% | 2989 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,492 psi | 87% | 2956 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,476 psi | 85% | 3031 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,847 psi | 73% | 2966 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,405 psi | 87% | 3002 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 57,000 psi | 89% | 3038 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,985 psi | 89% | 3104 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,913 psi | 59% | 2894 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,782 psi | 87% | 3018 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% | 51,300 psi | 80% | 2835 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 44,353 psi | 70% | 2762 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,590 psi | 81% | 2920 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 46,180 psi | 72% | 2789 fps | 95% |
| Accurate 3100 | <<locked>> | 98% | 41,524 psi | 65% | 2792 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 41,945 psi | 66% | 2759 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 35,650 psi | 56% | 2684 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 47,572 psi | 75% | 2877 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 40,306 psi | 63% | 2713 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,617 psi | 78% | 2881 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,270 psi | 79% | 2864 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,453 psi | 68% | 2913 fps | 98.4% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 48,167 psi | 75% | 2890 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,306 psi | 63% | 2743 fps | 99% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,178 psi | 68% | 2808 fps | 98.5% |
| Alliant Reloder-16 | <<locked>> | 84% | 35,360 psi | 55% | 2694 fps | 95.8% |
| Alliant Reloder-17 | 58.6 gr | 80% | 34,867 psi | 55% | 2710 fps | 97.4% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,879 psi | 48% | 2595 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,868 psi | 56% | 2785 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,876 psi | 73% | 2881 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 40,118 psi | 63% | 2746 fps | 99.1% |
| Bofors RP7 | <<locked>> | 88% | 46,224 psi | 72% | 2828 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 51,053 psi | 80% | 2867 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,776 psi | 76% | 2907 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,799 psi | 64% | 2749 fps | 96.8% |
| Hodgdon H414 | <<locked>> | 88% | 43,526 psi | 68% | 2858 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 90% | 50,125 psi | 79% | 2940 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 48,022 psi | 75% | 2890 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 30,618 psi | 48% | 2533 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,237 psi | 69% | 2861 fps | 99.6% |
| Hodgdon Superformance | 69.7 gr | 90% | 46,267 psi | 73% | 2936 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 42% | 1663 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,963 psi | 72% | 2835 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 47,950 psi | 75% | 2881 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,322 psi | 66% | 2753 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,788 psi | 70% | 2776 fps | 95.6% |
| IMR 4350 | <<locked>> | 92% | 46,601 psi | 73% | 2858 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 45,005 psi | 71% | 2805 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 34,418 psi | 54% | 2638 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 44,266 psi | 69% | 2841 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 49,617 psi | 78% | 2881 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 47,108 psi | 74% | 2854 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,239 psi | 74% | 2808 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 42,511 psi | 67% | 2759 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 39,552 psi | 62% | 2697 fps | 95.5% |
| Lovex S070 | <<locked>> | 88% | 42,699 psi | 67% | 2782 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 46,601 psi | 73% | 2825 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 46,992 psi | 74% | 2835 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,554 psi | 67% | 2799 fps | 98.8% |
| Norma 204 | <<locked>> | 96% | 53,258 psi | 83% | 3015 fps | 95.7% |
| Norma MRP | <<locked>> | 98% | 44,193 psi | 69% | 2946 fps | 95.2% |
| Norma URP | <<locked>> | 84% | 35,694 psi | 56% | 2684 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 42,250 psi | 66% | 2808 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 88% | 39,798 psi | 62% | 2782 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 49,458 psi | 78% | 2887 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,255 psi | 77% | 2910 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 53,345 psi | 84% | 2933 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,021 psi | 42% | 1706 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,075 psi | 64% | 2730 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,847 psi | 72% | 2920 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,086 psi | 58% | 2779 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 35,346 psi | 55% | 2700 fps | 95.2% |
| ReloadSwiss RS 70 | 64 gr | 86% | 37,637 psi | 59% | 2766 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 50,560 psi | 79% | 2867 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,324 psi | 69% | 2776 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 37,797 psi | 59% | 2690 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 46,224 psi | 72% | 2828 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,552 psi | 62% | 2697 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,108 psi | 74% | 2854 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,511 psi | 67% | 2759 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 42,699 psi | 67% | 2782 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,696 psi | 61% | 2740 fps | 97.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,964 psi | 75% | 2867 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,977 psi | 72% | 2841 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,572 psi | 75% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,784 psi | 62% | 2631 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 44,367 psi | 70% | 2749 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 53,853 psi | 84% | 2966 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 47,442 psi | 74% | 2772 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,688 psi | 75% | 2861 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 38,508 psi | 60% | 2694 fps | 98.3% |
| Somchem S365 | <<locked>> | 80% | 28,094 psi | 44% | 2516 fps | 96.1% |
| Somchem S385 | <<locked>> | 98% | 47,500 psi | 74% | 2904 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 53,534 psi | 84% | 2831 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,979 psi | 75% | 2762 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,888 psi | 69% | 2753 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,527 psi | 70% | 2762 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,637 psi | 57% | 2625 fps | 99% |
| Vihtavuori N160 | <<locked>> | 82% | 34,896 psi | 55% | 2631 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 49,806 psi | 78% | 2881 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,888 psi | 67% | 2749 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 36,695 psi | 57% | 2684 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 90% | 33,460 psi | 52% | 2674 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,314 psi | 51% | 2543 fps | 96.7% |
| Winchester 748 | <<locked>> | 80% | 49,864 psi | 78% | 2930 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 43,526 psi | 68% | 2858 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 94% | 31,154 psi | 49% | 2684 fps | 96.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,600 psi | 71% | 2848 fps | 99.6% |
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 | Frontier RSBT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,860 fps to 3,173 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 1:10.5 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 | 155gr | Frontier RSBT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate High Country, ADI AR 2213, Alliant Reloder-22 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.