Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 180gr | Swift A-Frame 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, Alliant Reloder-26 and Alliant Reloder-16.
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 2495 | <<locked>> | 82% | 54,462 psi | 85% | 2713 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 57,000 psi | 89% | 2789 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,330 psi | 84% | 2822 fps | 99.5% |
| Accurate 4064 | <<locked>> | 84% | 54,824 psi | 86% | 2766 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,405 psi | 87% | 2871 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 57,261 psi | 90% | 2841 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 54,839 psi | 86% | 2795 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 56,318 psi | 88% | 2913 fps | 98.3% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,012 psi | 85% | 2904 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,027 psi | 85% | 2913 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,593 psi | 87% | 2818 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,927 psi | 88% | 2841 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,144 psi | 88% | 2927 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 57,740 psi | 90% | 2953 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,608 psi | 87% | 2900 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,808 psi | 83% | 2900 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,922 psi | 78% | 2838 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,598 psi | 68% | 2762 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 57,537 psi | 90% | 3035 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 57,130 psi | 90% | 2861 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,515 psi | 76% | 2825 fps | 96.9% |
| Bofors RP3 | <<locked>> | 86% | 56,565 psi | 89% | 2838 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,808 psi | 83% | 2900 fps | 97.9% |
| Bofors RP7 | <<locked>> | 90% | 55,883 psi | 88% | 2822 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 86% | 57,058 psi | 89% | 2858 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,303 psi | 87% | 2887 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 92% | 55,738 psi | 87% | 2858 fps | 98.4% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 56,695 psi | 89% | 2890 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,623 psi | 89% | 2851 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 54,810 psi | 86% | 2841 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 54,070 psi | 85% | 2904 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,434 psi | 57% | 1752 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,621 psi | 86% | 2789 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,319 psi | 90% | 2805 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 57,305 psi | 90% | 2822 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,086 psi | 88% | 2802 fps | 99.3% |
| IMR 4350 | <<locked>> | 94% | 56,826 psi | 89% | 2854 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 57,493 psi | 90% | 2848 fps | 99.4% |
| IMR 4831 | <<locked>> | 98% | 56,797 psi | 89% | 2874 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 57,348 psi | 90% | 2867 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,782 psi | 87% | 2841 fps | 96.6% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,593 psi | 87% | 2943 fps | 97.1% |
| Lovex S060 | <<locked>> | 82% | 55,999 psi | 88% | 2766 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,665 psi | 86% | 2776 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 57,595 psi | 90% | 2844 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 55,405 psi | 87% | 2835 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,266 psi | 69% | 2671 fps | 98.3% |
| Norma 201 | <<locked>> | 82% | 55,927 psi | 88% | 2785 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,579 psi | 89% | 2779 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,216 psi | 87% | 2828 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,027 psi | 85% | 2851 fps | 97.8% |
| Norma MRPᴾ | <<locked>> | 100% | 56,289 psi | 88% | 2989 fps | 99.4% |
| Norma URP | <<locked>> | 94% | 57,682 psi | 90% | 2907 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 55,956 psi | 88% | 2854 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,550 psi | 87% | 2953 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 94% | 56,652 psi | 89% | 2913 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,880 psi | 81% | 2864 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,956 psi | 58% | 1791 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 56,855 psi | 89% | 2838 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,029 psi | 89% | 2910 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 57,261 psi | 90% | 2946 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,332 psi | 87% | 2894 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 57,551 psi | 90% | 2979 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,482 psi | 67% | 2776 fps | 97% |
| Rottweil R 902 | <<locked>> | 84% | 56,739 psi | 89% | 2785 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,681 psi | 89% | 2831 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,563 psi | 86% | 2828 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 98% | 54,940 psi | 86% | 2887 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 90% | 55,883 psi | 88% | 2822 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 57,595 psi | 90% | 2844 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 54,665 psi | 86% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,405 psi | 87% | 2835 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,737 psi | 86% | 2841 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,666 psi | 87% | 2812 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,724 psi | 89% | 2713 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,259 psi | 85% | 2674 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 57,508 psi | 90% | 2799 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,447 psi | 85% | 2884 fps | 98.2% |
| Somchem S335 | <<locked>> | 82% | 56,391 psi | 88% | 2710 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,507 psi | 89% | 2828 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 56,492 psi | 89% | 2825 fps | 96.4% |
| Somchem S365 | <<locked>> | 96% | 56,971 psi | 89% | 2907 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,608 psi | 87% | 2864 fps | 98.9% |
| Unknown powder | <<locked>> | 90% | 54,766 psi | 86% | 2861 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 82% | 57,261 psi | 90% | 2694 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 57,087 psi | 89% | 2743 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 57,334 psi | 90% | 2759 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,418 psi | 85% | 2756 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,231 psi | 88% | 2851 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,416 psi | 81% | 2785 fps | 98% |
| Vihtavuori N540 | <<locked>> | 84% | 55,317 psi | 87% | 2756 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,463 psi | 87% | 2858 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,043 psi | 88% | 2917 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 56,652 psi | 89% | 2979 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,883 psi | 88% | 2818 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,303 psi | 87% | 2887 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,121 psi | 71% | 2894 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 57,740 psi | 90% | 2887 fps | 98.4% |
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 2495 | <<locked>> | 80% | 51,082 psi | 80% | 2664 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,845 psi | 69% | 2569 fps | 96.5% |
| Accurate 3100 | <<locked>> | 88% | 35,404 psi | 55% | 2490 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 48,385 psi | 76% | 2671 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,883 psi | 58% | 2539 fps | 98% |
| ADI AR 2206H | <<locked>> | 80% | 53,896 psi | 84% | 2792 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,716 psi | 72% | 2648 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 43,598 psi | 68% | 2687 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 98% | 50,589 psi | 79% | 2844 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,401 psi | 79% | 2858 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,108 psi | 72% | 2671 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,371 psi | 77% | 2740 fps | 100% |
| Alliant Reloder-16 | 55.7 gr | 80% | 36,027 psi | 56% | 2549 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,727 psi | 64% | 2674 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,076 psi | 68% | 2677 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,279 psi | 68% | 2726 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,324 psi | 41% | 2303 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,852 psi | 53% | 2530 fps | 95.7% |
| Alliant Reloder-26 | 64.5 gr | 84% | 32,126 psi | 50% | 2526 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,592 psi | 84% | 2808 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 42,525 psi | 67% | 2707 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 46,499 psi | 73% | 2680 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,279 psi | 68% | 2726 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 40,930 psi | 64% | 2552 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 80% | 46,833 psi | 73% | 2690 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 42,177 psi | 66% | 2654 fps | 96.9% |
| Hodgdon H4350 | <<locked>> | 82% | 40,843 psi | 64% | 2585 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,127 psi | 83% | 2835 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,460 psi | 52% | 2441 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,109 psi | 75% | 2736 fps | 100% |
| Hodgdon Superformance | <<locked>> | 80% | 37,753 psi | 59% | 2589 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 43% | 1565 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,211 psi | 76% | 2690 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 50,531 psi | 79% | 2713 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,947 psi | 70% | 2625 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,063 psi | 69% | 2592 fps | 97.3% |
| IMR 4350 | <<locked>> | 82% | 39,088 psi | 61% | 2536 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,366 psi | 66% | 2585 fps | 96.8% |
| IMR 4831 | <<locked>> | 80% | 32,111 psi | 50% | 2411 fps | 96.5% |
| IMR 4895 | <<locked>> | 80% | 50,662 psi | 79% | 2766 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,342 psi | 77% | 2733 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 96% | 48,559 psi | 76% | 2822 fps | 95.4% |
| Lovex S060 | <<locked>> | 80% | 52,692 psi | 83% | 2717 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,298 psi | 76% | 2677 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,856 psi | 62% | 2536 fps | 97.5% |
| Lovex S070 | <<locked>> | 80% | 38,072 psi | 60% | 2513 fps | 95.9% |
| Lovex S071 | <<locked>> | 92% | 34,258 psi | 54% | 2464 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 52,576 psi | 82% | 2736 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,171 psi | 83% | 2733 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,747 psi | 76% | 2726 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,150 psi | 69% | 2677 fps | 95.5% |
| Norma MRP | <<locked>> | 88% | 37,130 psi | 58% | 2621 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 36,564 psi | 57% | 2530 fps | 97.8% |
| Ramshot Big Game | <<locked>> | 80% | 48,936 psi | 77% | 2746 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 47,790 psi | 75% | 2818 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 35,447 psi | 56% | 2513 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 94% | 41,466 psi | 65% | 2674 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,615 psi | 43% | 1601 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,920 psi | 74% | 2674 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,200 psi | 83% | 2854 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,294 psi | 68% | 2726 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,506 psi | 57% | 2552 fps | 97.6% |
| ReloadSwiss RS 70 | 60.9 gr | 80% | 35,578 psi | 56% | 2559 fps | 96.9% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,639 psi | 62% | 2707 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 50,096 psi | 79% | 2690 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,656 psi | 68% | 2628 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,080 psi | 75% | 2720 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 90% | 42,090 psi | 66% | 2657 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 40,930 psi | 64% | 2552 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,856 psi | 62% | 2536 fps | 97.5% |
| Shooters World Precision | <<locked>> | 80% | 48,298 psi | 76% | 2677 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,072 psi | 60% | 2513 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,788 psi | 70% | 2677 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,170 psi | 82% | 2759 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,476 psi | 84% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,208 psi | 71% | 2543 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,059 psi | 61% | 2480 fps | 96.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,698 psi | 65% | 2654 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 53,084 psi | 83% | 2667 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,063 psi | 69% | 2628 fps | 99.9% |
| Somchem S361 | <<locked>> | 94% | 52,678 psi | 83% | 2766 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 33,185 psi | 52% | 2490 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 40,190 psi | 63% | 2592 fps | 95.7% |
| Unknown powder | <<locked>> | 80% | 39,566 psi | 62% | 2589 fps | 98% |
| Vihtavuori N133 | <<locked>> | 80% | 54,027 psi | 85% | 2654 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,415 psi | 79% | 2654 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,430 psi | 79% | 2664 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,003 psi | 66% | 2559 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,101 psi | 60% | 2533 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 94% | 42,148 psi | 66% | 2621 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 48,776 psi | 76% | 2661 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,492 psi | 59% | 2533 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 80% | 28,834 psi | 45% | 2375 fps | 95.7% |
| Vihtavuori N560 | <<locked>> | 96% | 49,414 psi | 77% | 2854 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,159 psi | 58% | 2503 fps | 99.5% |
| Winchester 760 | <<locked>> | 80% | 42,177 psi | 66% | 2654 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,801 psi | 39% | 2323 fps | 95% |
| Winchester Supreme 780 | <<locked>> | 90% | 43,395 psi | 68% | 2648 fps | 95.4% |
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 98 powders for .308 Norma Mag. loaded with the .308 | 180gr | Swift A-Frame. Alliant Reloder-26 delivers the highest muzzle velocity at 3,035 fps; across all powders the maximum-charge window runs from 1,752 fps to 3,035 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.308" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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, Alliant Reloder-26, Alliant Reloder-16 rank at the top here: for .308 Norma Mag. with the .308 | 180gr | Swift A-Frame they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.