Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 150gr | Speer Magnum Tip Soft Point bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, 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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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% | 57,377 psi | 90% | 2989 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,334 psi | 90% | 3022 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,405 psi | 87% | 3018 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,341 psi | 76% | 2979 fps | 97.7% |
| Accurate 4064 | <<locked>> | 88% | 57,334 psi | 90% | 3071 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,143 psi | 85% | 3110 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 56,913 psi | 89% | 3104 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,433 psi | 85% | 3048 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,680 psi | 87% | 3146 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,448 psi | 87% | 3045 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 57,014 psi | 89% | 3018 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 57,116 psi | 90% | 3232 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 57,682 psi | 90% | 3114 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,969 psi | 86% | 3074 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,390 psi | 87% | 3097 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 55,129 psi | 86% | 3173 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,347 psi | 88% | 3205 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,694 psi | 86% | 3130 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,368 psi | 71% | 3005 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,953 psi | 81% | 3202 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,840 psi | 89% | 3117 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 55,738 psi | 87% | 3087 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 55,332 psi | 87% | 3061 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,884 psi | 89% | 3025 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,390 psi | 87% | 3077 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,304 psi | 88% | 3104 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 56,753 psi | 89% | 3166 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 92% | 56,826 psi | 89% | 3123 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 84% | 57,522 psi | 90% | 3114 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,085 psi | 86% | 3091 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,638 psi | 90% | 3150 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 57,392 psi | 90% | 3205 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,882 psi | 56% | 1929 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,100 psi | 86% | 3058 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,346 psi | 85% | 3041 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,290 psi | 90% | 3084 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,898 psi | 89% | 3064 fps | 98.3% |
| IMR 4350 | <<locked>> | 96% | 56,217 psi | 88% | 3094 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 92% | 57,188 psi | 90% | 3094 fps | 98.3% |
| IMR 4831 | <<locked>> | 96% | 54,781 psi | 86% | 3104 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 56,782 psi | 89% | 3127 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,448 psi | 87% | 3045 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 57,174 psi | 90% | 3074 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,753 psi | 87% | 3022 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 57,522 psi | 90% | 3081 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,985 psi | 89% | 3087 fps | 99.2% |
| Lovex S070 | <<locked>> | 94% | 54,766 psi | 86% | 3071 fps | 98.2% |
| Norma 201 | <<locked>> | 84% | 55,579 psi | 87% | 3041 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,101 psi | 88% | 3041 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,621 psi | 86% | 3081 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,927 psi | 89% | 3143 fps | 96.7% |
| Norma MRPᴾ | <<locked>> | 100% | 51,140 psi | 80% | 3146 fps | 97.3% |
| Norma URP | <<locked>> | 96% | 56,753 psi | 89% | 3153 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 55,245 psi | 87% | 3104 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 55,434 psi | 87% | 3146 fps | 98.8% |
| Ramshot TAC | <<locked>> | 82% | 55,738 psi | 87% | 3064 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,709 psi | 87% | 3084 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,477 psi | 57% | 1975 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 56,550 psi | 89% | 3084 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,043 psi | 88% | 3166 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,912 psi | 88% | 3202 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 53,969 psi | 85% | 3130 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,782 psi | 89% | 3222 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 56,217 psi | 88% | 3022 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,999 psi | 88% | 3041 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,811 psi | 87% | 3084 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,664 psi | 84% | 3114 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 92% | 55,332 psi | 87% | 3061 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,985 psi | 89% | 3087 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 57,174 psi | 90% | 3074 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 57,522 psi | 90% | 3081 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,766 psi | 86% | 3071 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,406 psi | 90% | 3146 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,549 psi | 85% | 3045 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,216 psi | 87% | 3068 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 56,521 psi | 89% | 2976 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 57,261 psi | 90% | 2972 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 57,101 psi | 89% | 3038 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,171 psi | 83% | 3104 fps | 96.3% |
| Somchem S335 | <<locked>> | 84% | 56,217 psi | 88% | 2972 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 54,186 psi | 85% | 3031 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 55,753 psi | 87% | 3077 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,535 psi | 87% | 3156 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,491 psi | 85% | 3091 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 84% | 56,927 psi | 89% | 2959 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,101 psi | 88% | 3002 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,869 psi | 89% | 3018 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,348 psi | 90% | 3054 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,274 psi | 87% | 3091 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 55,941 psi | 88% | 3045 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 54,969 psi | 86% | 3015 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,520 psi | 85% | 3097 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,691 psi | 79% | 3091 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 55,419 psi | 87% | 3064 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,376 psi | 88% | 3094 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,985 psi | 89% | 3169 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,002 psi | 64% | 3035 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,332 psi | 87% | 3074 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% | 54,012 psi | 85% | 2940 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,007 psi | 74% | 2864 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,527 psi | 71% | 2838 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 39,160 psi | 61% | 2792 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 44,498 psi | 70% | 2861 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 35,636 psi | 56% | 2733 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 49,980 psi | 78% | 2986 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 42,409 psi | 66% | 2822 fps | 98.3% |
| ADI AR 2209 | <<locked>> | 98% | 52,156 psi | 82% | 3081 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,054 psi | 82% | 2989 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,548 psi | 84% | 2969 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,282 psi | 73% | 3035 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 50,676 psi | 79% | 2999 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,554 psi | 67% | 2848 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,585 psi | 71% | 2917 fps | 99% |
| Alliant Reloder-16 | 60.5 gr | 82% | 35,230 psi | 55% | 2749 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,188 psi | 58% | 2825 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 51,271 psi | 80% | 3068 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,937 psi | 48% | 2644 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 90% | 36,013 psi | 56% | 2841 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,603 psi | 78% | 2992 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 42,714 psi | 67% | 2858 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 45,977 psi | 72% | 2887 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,505 psi | 84% | 2972 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,808 psi | 81% | 3018 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,163 psi | 68% | 2861 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 86% | 43,453 psi | 68% | 2913 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 88% | 49,922 psi | 78% | 3002 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 50,531 psi | 79% | 2999 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,603 psi | 48% | 2582 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,934 psi | 74% | 2969 fps | 99.9% |
| Hodgdon Superformance | 73.9 gr | 88% | 45,977 psi | 72% | 2995 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,760 psi | 42% | 1726 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,341 psi | 76% | 2943 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 50,836 psi | 80% | 2986 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,585 psi | 70% | 2861 fps | 98.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,021 psi | 74% | 2884 fps | 96.4% |
| IMR 4350 | <<locked>> | 90% | 46,398 psi | 73% | 2913 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 44,643 psi | 70% | 2861 fps | 95.6% |
| IMR 4831 | <<locked>> | 82% | 34,418 psi | 54% | 2687 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 46,746 psi | 73% | 2949 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 52,054 psi | 82% | 2989 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,995 psi | 78% | 2963 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,429 psi | 77% | 2913 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 44,817 psi | 70% | 2864 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 39,291 psi | 62% | 2749 fps | 95.6% |
| Lovex S070 | <<locked>> | 86% | 42,554 psi | 67% | 2838 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 48,921 psi | 77% | 2930 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,400 psi | 77% | 2933 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,962 psi | 70% | 2907 fps | 99.2% |
| Norma 204 | <<locked>> | 92% | 49,734 psi | 78% | 3015 fps | 95% |
| Norma MRP | <<locked>> | 96% | 44,425 psi | 70% | 3009 fps | 95.5% |
| Norma URP | <<locked>> | 82% | 35,795 psi | 56% | 2736 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 45,049 psi | 71% | 2923 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 39,726 psi | 62% | 2838 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 52,214 psi | 82% | 3005 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,127 psi | 82% | 3025 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,195 psi | 43% | 1768 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,497 psi | 68% | 2844 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,834 psi | 77% | 3038 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,537 psi | 62% | 2894 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 35,389 psi | 55% | 2749 fps | 95.3% |
| ReloadSwiss RS 70 | 67.8 gr | 84% | 37,420 psi | 59% | 2818 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 53,055 psi | 83% | 2972 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,717 psi | 73% | 2884 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 40,219 psi | 63% | 2799 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 98% | 50,169 psi | 79% | 3048 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 86% | 45,977 psi | 72% | 2887 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 82% | 39,291 psi | 62% | 2749 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,995 psi | 78% | 2963 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,817 psi | 70% | 2864 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 42,554 psi | 67% | 2838 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,176 psi | 65% | 2848 fps | 98.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,763 psi | 80% | 2979 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,559 psi | 76% | 2953 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,879 psi | 78% | 2874 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,916 psi | 66% | 2730 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,947 psi | 69% | 2805 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 49,705 psi | 78% | 3041 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 49,676 psi | 78% | 2874 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,444 psi | 79% | 2969 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 40,654 psi | 64% | 2799 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 30,008 psi | 47% | 2621 fps | 97.1% |
| Somchem S385 | <<locked>> | 94% | 44,643 psi | 70% | 2907 fps | 95% |
| Vihtavuori N133 | <<locked>> | 80% | 50,357 psi | 79% | 2861 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,427 psi | 73% | 2854 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,963 psi | 74% | 2864 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,870 psi | 61% | 2730 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 34,737 psi | 54% | 2677 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 52,489 psi | 82% | 2989 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,223 psi | 71% | 2851 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 36,724 psi | 58% | 2740 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 88% | 33,997 psi | 53% | 2733 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,272 psi | 54% | 2648 fps | 97.6% |
| Winchester 748 | <<locked>> | 80% | 52,924 psi | 83% | 3041 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 43,453 psi | 68% | 2913 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 90% | 29,298 psi | 46% | 2671 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,341 psi | 76% | 2959 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 | 150gr | Speer Magnum Tip Soft Point. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,232 fps; across all powders the maximum-charge window runs from 1,929 fps to 3,232 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 150.0 gr projectile in 0.308" calls for a 1:6.0 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-16, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for .308 Norma Mag. with the .308 | 150gr | Speer Magnum Tip Soft Point they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, 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.