Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 150gr | Nosler Partition bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are IMR 4350, ReloadSwiss RS 70 and Hodgdon Superformance.
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% | 55,927 psi | 88% | 2959 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,376 psi | 87% | 2986 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,158 psi | 86% | 3038 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,158 psi | 86% | 3038 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 55,129 psi | 86% | 2989 fps | 97.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,180 psi | 72% | 2933 fps | 97% |
| Accurate 4064 | <<locked>> | 88% | 55,434 psi | 87% | 3035 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,854 psi | 88% | 3130 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 84% | 55,187 psi | 86% | 3068 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,405 psi | 88% | 3068 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,635 psi | 84% | 3097 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 57,522 psi | 90% | 3068 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,376 psi | 87% | 2989 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,230 psi | 87% | 3192 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,637 psi | 89% | 3091 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 57,029 psi | 89% | 3114 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,652 psi | 89% | 3189 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,389 psi | 85% | 3166 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,634 psi | 82% | 3084 fps | 95.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,569 psi | 68% | 2959 fps | 99.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,661 psi | 78% | 3153 fps | 99.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,143 psi | 86% | 3077 fps | 99.7% |
| Bofors RP3 | <<locked>> | 90% | 57,580 psi | 90% | 3110 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 57,348 psi | 90% | 3081 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,434 psi | 87% | 2995 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 57,363 psi | 90% | 3097 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 57,566 psi | 90% | 3048 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,534 psi | 85% | 3064 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 92% | 56,376 psi | 88% | 3150 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 96% | 56,695 psi | 89% | 3107 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 84% | 55,796 psi | 87% | 3077 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,913 psi | 89% | 3110 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,753 psi | 87% | 3114 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,100 psi | 86% | 3156 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,737 psi | 56% | 1913 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,825 psi | 87% | 3061 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,520 psi | 85% | 3038 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,984 psi | 86% | 3038 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 92% | 57,609 psi | 90% | 3064 fps | 98.2% |
| IMR 4350 | <<locked>> | 96% | 54,244 psi | 85% | 3048 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,651 psi | 87% | 3058 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,301 psi | 84% | 3071 fps | 99.5% |
| IMR 4895 | <<locked>> | 86% | 55,085 psi | 86% | 3091 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 57,522 psi | 90% | 3068 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,361 psi | 87% | 3041 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 57,653 psi | 90% | 3041 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,840 psi | 88% | 3048 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,114 psi | 86% | 3048 fps | 98.9% |
| Lovex S070 | <<locked>> | 96% | 56,260 psi | 88% | 3087 fps | 98.2% |
| Norma 201 | <<locked>> | 86% | 57,406 psi | 90% | 3061 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,592 psi | 86% | 3009 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,275 psi | 88% | 3100 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,998 psi | 86% | 3100 fps | 96% |
| Norma MRPᴾ | <<locked>> | 100% | 48,950 psi | 77% | 3094 fps | 96.6% |
| Norma URP | <<locked>> | 96% | 54,563 psi | 86% | 3110 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 88% | 57,101 psi | 89% | 3127 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 57,130 psi | 90% | 3166 fps | 98.9% |
| Ramshot TAC | <<locked>> | 82% | 54,114 psi | 85% | 3025 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 84% | 57,740 psi | 90% | 3107 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,318 psi | 57% | 1959 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,694 psi | 86% | 3045 fps | 98.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,143 psi | 85% | 3127 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 53,882 psi | 84% | 3163 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,695 psi | 87% | 3150 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,679 psi | 86% | 3179 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 82% | 54,781 psi | 86% | 2992 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,534 psi | 85% | 3009 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 57,363 psi | 90% | 3100 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 57,348 psi | 90% | 3081 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,114 psi | 86% | 3048 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,361 psi | 87% | 3041 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,840 psi | 88% | 3048 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,260 psi | 88% | 3087 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,680 psi | 87% | 3110 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,565 psi | 89% | 3068 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,145 psi | 90% | 3087 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 54,984 psi | 86% | 2946 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,637 psi | 87% | 2943 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,376 psi | 87% | 2999 fps | 97.9% |
| Somchem S335 | <<locked>> | 84% | 54,781 psi | 86% | 2943 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,202 psi | 88% | 3058 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 57,522 psi | 90% | 3097 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 56,753 psi | 89% | 3173 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,330 psi | 82% | 3045 fps | 96.8% |
| Unknown powder | <<locked>> | 94% | 55,434 psi | 87% | 3120 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 84% | 55,361 psi | 87% | 2930 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,404 psi | 85% | 2972 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,187 psi | 86% | 2989 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,390 psi | 87% | 3018 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,043 psi | 89% | 3110 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 54,491 psi | 85% | 3012 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 56,782 psi | 89% | 3031 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,057 psi | 88% | 3114 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,530 psi | 76% | 3048 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 57,290 psi | 90% | 3084 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,376 psi | 88% | 3150 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,189 psi | 61% | 2979 fps | 99.6% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,752 psi | 86% | 3071 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% | 52,576 psi | 82% | 2910 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,542 psi | 71% | 2835 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,561 psi | 81% | 2986 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,561 psi | 81% | 2986 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 48,312 psi | 76% | 2871 fps | 95.6% |
| Accurate 3100 | <<locked>> | 96% | 40,277 psi | 63% | 2815 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 43,062 psi | 67% | 2828 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 34,258 psi | 54% | 2694 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 48,689 psi | 76% | 2953 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 41,249 psi | 65% | 2789 fps | 97.9% |
| ADI AR 2209 | <<locked>> | 98% | 50,328 psi | 79% | 3038 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,792 psi | 80% | 2959 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,634 psi | 81% | 2936 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,744 psi | 70% | 2992 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,292 psi | 65% | 2812 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,324 psi | 69% | 2887 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 82% | 34,214 psi | 54% | 2710 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,824 psi | 56% | 2782 fps | 97.7% |
| Alliant Reloder-19 | <<locked>> | 98% | 49,516 psi | 78% | 3025 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 90% | 31,836 psi | 50% | 2667 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 92% | 37,057 psi | 58% | 2864 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,095 psi | 75% | 2956 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 41,234 psi | 65% | 2822 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 47,355 psi | 74% | 2904 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,272 psi | 82% | 2943 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,169 psi | 79% | 2986 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 53,824 psi | 84% | 2992 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,829 psi | 66% | 2822 fps | 97% |
| Hodgdon H414 | <<locked>> | 86% | 45,759 psi | 72% | 2956 fps | 95.9% |
| Hodgdon H4350 | <<locked>> | 92% | 50,024 psi | 78% | 2992 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 49,211 psi | 77% | 2966 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,443 psi | 46% | 2539 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,714 psi | 67% | 2881 fps | 99.4% |
| Hodgdon Superformance | 73.3 gr | 90% | 47,732 psi | 75% | 3018 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 42% | 1713 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,482 psi | 68% | 2841 fps | 99.2% |
| IMR 3031 | <<locked>> | 80% | 45,063 psi | 71% | 2884 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,524 psi | 64% | 2766 fps | 98% |
| IMR 4166 Enduron | <<locked>> | 84% | 45,339 psi | 71% | 2841 fps | 95.7% |
| IMR 4350 | 67.2 gr | 92% | 47,906 psi | 75% | 2936 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,453 psi | 68% | 2825 fps | 95% |
| IMR 4831 | <<locked>> | 86% | 34,214 psi | 54% | 2677 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 45,440 psi | 71% | 2920 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 80% | 50,792 psi | 80% | 2959 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,240 psi | 76% | 2930 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,240 psi | 76% | 2884 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 43,555 psi | 68% | 2831 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 40,640 psi | 64% | 2769 fps | 95.8% |
| Lovex S070 | <<locked>> | 88% | 43,787 psi | 69% | 2854 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 47,645 psi | 75% | 2900 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 48,066 psi | 75% | 2907 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,700 psi | 68% | 2871 fps | 98.9% |
| Norma 204 | <<locked>> | 94% | 51,372 psi | 81% | 3038 fps | 95.2% |
| Norma MRP | <<locked>> | 98% | 45,716 psi | 72% | 3031 fps | 95.7% |
| Norma URP | <<locked>> | 82% | 34,490 psi | 54% | 2697 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 43,511 psi | 68% | 2887 fps | 98.8% |
| Ramshot Hunter | <<locked>> | 88% | 40,872 psi | 64% | 2858 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 50,807 psi | 80% | 2969 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,575 psi | 79% | 2989 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,137 psi | 43% | 1755 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,119 psi | 66% | 2805 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,253 psi | 74% | 3002 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,130 psi | 60% | 2854 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 36,448 psi | 57% | 2772 fps | 95.5% |
| ReloadSwiss RS 70 | 67.3 gr | 86% | 38,725 psi | 61% | 2841 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 51,605 psi | 81% | 2940 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,223 psi | 71% | 2848 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 38,740 psi | 61% | 2759 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 88% | 47,355 psi | 74% | 2904 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 84% | 40,640 psi | 64% | 2769 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,240 psi | 76% | 2930 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,555 psi | 68% | 2831 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 43,787 psi | 69% | 2854 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,842 psi | 62% | 2812 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,240 psi | 77% | 2943 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,166 psi | 74% | 2920 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,733 psi | 76% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,857 psi | 64% | 2700 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 42,670 psi | 67% | 2769 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 48,414 psi | 76% | 2844 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 48,936 psi | 77% | 2936 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 39,450 psi | 62% | 2766 fps | 98.5% |
| Somchem S365 | <<locked>> | 80% | 28,877 psi | 45% | 2582 fps | 96.3% |
| Somchem S385 | <<locked>> | 96% | 45,977 psi | 72% | 2927 fps | 95.2% |
| Unknown powder | <<locked>> | 82% | 37,289 psi | 58% | 2759 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 49,168 psi | 77% | 2838 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,179 psi | 71% | 2828 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,469 psi | 71% | 2831 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,536 psi | 59% | 2697 fps | 99.1% |
| Vihtavuori N160 | <<locked>> | 82% | 35,853 psi | 56% | 2700 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 50,981 psi | 80% | 2956 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 43,903 psi | 69% | 2822 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 35,375 psi | 55% | 2700 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 88% | 32,561 psi | 51% | 2690 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,214 psi | 52% | 2612 fps | 97% |
| Winchester 760 | <<locked>> | 86% | 45,759 psi | 72% | 2956 fps | 95.9% |
| Winchester StaBALL HD | <<locked>> | 92% | 30,153 psi | 47% | 2694 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 98% | 51,010 psi | 80% | 3005 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 115 powders for .308 Norma Mag. loaded with the .308 | 150gr | Nosler Partition. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,192 fps; across all powders the maximum-charge window runs from 1,913 fps to 3,192 fps. Accurate 3100 gives the best case fill at 100 %, and 115 of the 115 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 150.0 gr projectile in 0.308" calls for a 1:14.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, ADI AR 2213 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. IMR 4350, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for .308 Norma Mag. with the .308 | 150gr | Nosler Partition they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Alliant Reloder-22, Bofors RP15 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.