Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 155gr | CutEdge MTAC 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>> | 84% | 57,595 psi | 90% | 2933 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,289 psi | 88% | 2953 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,650 psi | 86% | 2976 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,680 psi | 87% | 2963 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,888 psi | 69% | 2848 fps | 96.6% |
| Accurate 4064 | <<locked>> | 90% | 56,492 psi | 89% | 3005 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 57,377 psi | 90% | 3104 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 86% | 57,000 psi | 89% | 3045 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,563 psi | 86% | 2989 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,898 psi | 88% | 2992 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,971 psi | 89% | 2963 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 57,087 psi | 89% | 3173 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,824 psi | 86% | 3015 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,216 psi | 87% | 3035 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,795 psi | 86% | 3110 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,130 psi | 88% | 3143 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,626 psi | 65% | 2877 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,253 psi | 74% | 3058 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,072 psi | 89% | 3061 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 55,376 psi | 87% | 3028 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,317 psi | 87% | 2999 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 57,464 psi | 90% | 2972 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,332 psi | 87% | 3018 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,333 psi | 88% | 3045 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 96% | 56,304 psi | 88% | 3097 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 94% | 56,855 psi | 89% | 3064 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 86% | 57,595 psi | 90% | 3054 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,665 psi | 86% | 3031 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 57,609 psi | 90% | 3094 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 57,116 psi | 90% | 3140 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,679 psi | 56% | 1870 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,317 psi | 87% | 3002 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,259 psi | 85% | 2982 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 57,464 psi | 90% | 3028 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 57,363 psi | 90% | 3009 fps | 98.2% |
| IMR 4350 | <<locked>> | 98% | 55,999 psi | 88% | 3028 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 57,246 psi | 90% | 3035 fps | 98.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 57,711 psi | 90% | 3091 fps | 99.8% |
| IMR 4895 | <<locked>> | 88% | 56,666 psi | 89% | 3068 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,898 psi | 88% | 2992 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,840 psi | 89% | 3015 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,144 psi | 88% | 2966 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 57,377 psi | 90% | 3022 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,782 psi | 89% | 3025 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 54,259 psi | 85% | 3009 fps | 98% |
| Norma 201 | <<locked>> | 86% | 55,288 psi | 87% | 2982 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,231 psi | 88% | 2986 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,462 psi | 85% | 3022 fps | 100% |
| Norma 204 | <<locked>> | 98% | 56,753 psi | 89% | 3081 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 46,963 psi | 74% | 3012 fps | 96.2% |
| Norma URP | <<locked>> | 98% | 56,130 psi | 88% | 3087 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 55,114 psi | 86% | 3045 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 54,955 psi | 86% | 3084 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 56,101 psi | 88% | 3012 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,840 psi | 88% | 3028 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,724 psi | 89% | 2992 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,027 psi | 56% | 1909 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,652 psi | 89% | 3025 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,101 psi | 88% | 3107 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,738 psi | 87% | 3143 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 57,261 psi | 90% | 3127 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,550 psi | 89% | 3159 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 84% | 56,159 psi | 88% | 2963 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,086 psi | 88% | 2986 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,230 psi | 87% | 3018 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 55,317 psi | 87% | 2999 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,782 psi | 89% | 3025 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,840 psi | 89% | 3015 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 57,377 psi | 90% | 3022 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,259 psi | 85% | 3009 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 57,203 psi | 90% | 3084 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,621 psi | 86% | 2986 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,521 psi | 87% | 3015 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,000 psi | 89% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 57,522 psi | 90% | 2920 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 57,029 psi | 89% | 2976 fps | 98.2% |
| Somchem S321 | <<locked>> | 82% | 57,261 psi | 90% | 3025 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 56,144 psi | 88% | 2913 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,360 psi | 85% | 2979 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 55,463 psi | 87% | 3018 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,462 psi | 85% | 3091 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,357 psi | 79% | 2966 fps | 96.5% |
| Vihtavuori N130 | <<locked>> | 82% | 56,492 psi | 89% | 2881 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 57,377 psi | 90% | 2907 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,999 psi | 88% | 2946 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,811 psi | 89% | 2963 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 57,087 psi | 89% | 2995 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,882 psi | 86% | 3028 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 56,318 psi | 88% | 2989 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,882 psi | 86% | 2956 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 53,969 psi | 85% | 3031 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,209 psi | 72% | 2959 fps | 99.1% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,187 psi | 86% | 3005 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,536 psi | 89% | 3038 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,565 psi | 89% | 3104 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,347 psi | 59% | 2887 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,463 psi | 87% | 3022 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% | 50,807 psi | 80% | 2835 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,134 psi | 68% | 2749 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,908 psi | 80% | 2917 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 45,614 psi | 71% | 2785 fps | 95% |
| Accurate 3100 | <<locked>> | 98% | 40,915 psi | 64% | 2789 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 40,814 psi | 64% | 2743 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 34,838 psi | 55% | 2671 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 46,876 psi | 73% | 2874 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 39,914 psi | 63% | 2713 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,023 psi | 77% | 2881 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 49,922 psi | 78% | 2864 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,004 psi | 67% | 2910 fps | 98.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,595 psi | 62% | 2736 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,482 psi | 67% | 2802 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 34,867 psi | 55% | 2687 fps | 95.6% |
| Alliant Reloder-17 | 59.4 gr | 80% | 34,316 psi | 54% | 2700 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,197 psi | 47% | 2579 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 37,768 psi | 59% | 2844 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,398 psi | 73% | 2877 fps | 98.7% |
| Bofors RP3 | <<locked>> | 80% | 39,218 psi | 61% | 2736 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 45,629 psi | 72% | 2825 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,749 psi | 80% | 2871 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,211 psi | 76% | 2904 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,205 psi | 63% | 2746 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 42,917 psi | 67% | 2851 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 90% | 49,864 psi | 78% | 2943 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 47,340 psi | 74% | 2884 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 29,907 psi | 47% | 2520 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,569 psi | 68% | 2854 fps | 99.6% |
| Hodgdon Superformance | 70.6 gr | 90% | 45,774 psi | 72% | 2936 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,469 psi | 41% | 1670 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,411 psi | 71% | 2835 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 47,340 psi | 74% | 2877 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,930 psi | 66% | 2753 fps | 98.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,367 psi | 70% | 2776 fps | 95.5% |
| IMR 4350 | <<locked>> | 92% | 46,282 psi | 73% | 2858 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 44,556 psi | 70% | 2805 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 33,779 psi | 53% | 2628 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 43,540 psi | 68% | 2835 fps | 99% |
| IMR 8208 XBR | <<locked>> | 80% | 49,023 psi | 77% | 2881 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,195 psi | 72% | 2848 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,731 psi | 73% | 2808 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 41,771 psi | 65% | 2753 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 38,943 psi | 61% | 2690 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 42,018 psi | 66% | 2776 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 45,788 psi | 72% | 2822 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 46,325 psi | 73% | 2828 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,843 psi | 66% | 2789 fps | 98.7% |
| Norma 204 | <<locked>> | 96% | 53,127 psi | 83% | 3022 fps | 95.7% |
| Norma MRP | <<locked>> | 98% | 43,772 psi | 69% | 2943 fps | 95.2% |
| Norma URP | <<locked>> | 84% | 35,099 psi | 55% | 2677 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 41,727 psi | 65% | 2805 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 90% | 41,989 psi | 66% | 2838 fps | 95.9% |
| Ramshot TAC | <<locked>> | 80% | 49,197 psi | 77% | 2894 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,776 psi | 76% | 2910 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,866 psi | 83% | 2933 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,687 psi | 42% | 1706 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,509 psi | 63% | 2726 fps | 95.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,353 psi | 71% | 2920 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,550 psi | 57% | 2772 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,621 psi | 54% | 2687 fps | 95% |
| ReloadSwiss RS 70 | 64.8 gr | 86% | 37,014 psi | 58% | 2759 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 49,647 psi | 78% | 2861 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,526 psi | 68% | 2769 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 36,898 psi | 58% | 2677 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 45,629 psi | 72% | 2825 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,943 psi | 61% | 2690 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,195 psi | 72% | 2848 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,771 psi | 65% | 2753 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 42,018 psi | 66% | 2776 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,174 psi | 60% | 2733 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,297 psi | 74% | 2861 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,571 psi | 71% | 2841 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,021 psi | 74% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,233 psi | 61% | 2625 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 43,685 psi | 68% | 2746 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 53,301 psi | 84% | 2963 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,746 psi | 73% | 2769 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,195 psi | 74% | 2858 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 37,710 psi | 59% | 2684 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 27,340 psi | 43% | 2497 fps | 95.7% |
| Somchem S385 | <<locked>> | 98% | 46,920 psi | 74% | 2900 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 53,011 psi | 83% | 2831 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,471 psi | 74% | 2762 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,192 psi | 68% | 2746 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,874 psi | 69% | 2759 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,897 psi | 56% | 2618 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 34,200 psi | 54% | 2618 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 49,197 psi | 77% | 2877 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,395 psi | 66% | 2749 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 36,042 psi | 56% | 2677 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 90% | 32,837 psi | 51% | 2664 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,734 psi | 50% | 2536 fps | 96.5% |
| Winchester 748 | <<locked>> | 80% | 49,385 psi | 77% | 2930 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 43,134 psi | 68% | 2858 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,443 psi | 48% | 2671 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,107 psi | 71% | 2844 fps | 99.5% |
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 | 155gr | CutEdge MTAC. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,173 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 155.0 gr projectile in 0.308" calls for a 1:12.0 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. ReloadSwiss RS 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .308 Norma Mag. with the .308 | 155gr | CutEdge MTAC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2213, Alliant Reloder-22, Alliant Reloder-25 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.