Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 155.8gr | Peregrine Glider (Glider GRM) 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 60, Alliant Reloder-17 and Winchester 760.
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% | 56,536 psi | 89% | 2904 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,288 psi | 87% | 2923 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,406 psi | 90% | 2999 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,578 psi | 86% | 2930 fps | 97% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,699 psi | 67% | 2812 fps | 96.2% |
| Accurate 4064 | <<locked>> | 90% | 55,288 psi | 87% | 2972 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,883 psi | 88% | 3068 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 86% | 55,854 psi | 88% | 3012 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,087 psi | 89% | 3015 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,781 psi | 86% | 2959 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,782 psi | 87% | 2933 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,825 psi | 87% | 3136 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,145 psi | 90% | 3035 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,143 psi | 85% | 3002 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,101 psi | 89% | 3130 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,723 psi | 86% | 3110 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,712 psi | 64% | 2844 fps | 99% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,992 psi | 72% | 3022 fps | 98.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,869 psi | 88% | 3028 fps | 99.7% |
| Bofors RP3 | <<locked>> | 90% | 54,027 psi | 85% | 2992 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,201 psi | 85% | 2963 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,333 psi | 88% | 2940 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,259 psi | 85% | 2986 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,681 psi | 89% | 3097 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 55,071 psi | 86% | 3009 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 96% | 54,940 psi | 86% | 3061 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 94% | 55,506 psi | 87% | 3025 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 86% | 56,478 psi | 89% | 3025 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,229 psi | 83% | 2992 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,304 psi | 88% | 3058 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,811 psi | 87% | 3104 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,534 psi | 56% | 1850 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,230 psi | 85% | 2969 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,623 psi | 89% | 3005 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,376 psi | 88% | 2992 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,434 psi | 88% | 2976 fps | 98% |
| IMR 4350 | <<locked>> | 98% | 54,752 psi | 86% | 2992 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,391 psi | 88% | 3002 fps | 97.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,318 psi | 88% | 3058 fps | 99.7% |
| IMR 4895 | <<locked>> | 88% | 55,550 psi | 87% | 3035 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 54,781 psi | 86% | 2959 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,709 psi | 87% | 2986 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,317 psi | 87% | 2936 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 56,275 psi | 88% | 2989 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,651 psi | 87% | 2992 fps | 98.9% |
| Lovex S070 | <<locked>> | 98% | 56,739 psi | 89% | 3031 fps | 98.3% |
| Norma 201 | <<locked>> | 86% | 54,389 psi | 85% | 2953 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,071 psi | 86% | 2953 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,985 psi | 89% | 3045 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,564 psi | 87% | 3045 fps | 96.2% |
| Norma URP | <<locked>> | 98% | 54,955 psi | 86% | 3054 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 88% | 53,911 psi | 84% | 3015 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,435 psi | 90% | 3107 fps | 99% |
| Ramshot TAC | <<locked>> | 84% | 55,216 psi | 87% | 2979 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,868 psi | 86% | 2999 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,724 psi | 87% | 2963 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,882 psi | 56% | 1893 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,609 psi | 90% | 2989 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,535 psi | 87% | 2992 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,636 psi | 86% | 3071 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,563 psi | 86% | 3110 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,666 psi | 87% | 3091 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,158 psi | 86% | 3120 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 84% | 55,085 psi | 86% | 2933 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 54,940 psi | 86% | 2953 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 57,638 psi | 90% | 3041 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 54,201 psi | 85% | 2963 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,651 psi | 87% | 2992 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,709 psi | 87% | 2986 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,275 psi | 88% | 2989 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,739 psi | 89% | 3031 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,043 psi | 88% | 3051 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,290 psi | 90% | 3012 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,288 psi | 85% | 2979 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,014 psi | 88% | 2894 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,434 psi | 88% | 2890 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,057 psi | 88% | 2946 fps | 98% |
| Somchem S321 | <<locked>> | 82% | 56,217 psi | 88% | 2995 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,288 psi | 87% | 2887 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,971 psi | 89% | 3002 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 54,447 psi | 85% | 2989 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,982 psi | 83% | 3054 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,965 psi | 77% | 2927 fps | 96% |
| Vihtavuori N130 | <<locked>> | 82% | 55,695 psi | 87% | 2854 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,376 psi | 88% | 2877 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,926 psi | 86% | 2917 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,709 psi | 87% | 2933 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,898 psi | 88% | 2963 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,479 psi | 90% | 3051 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 84% | 55,419 psi | 87% | 2963 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,479 psi | 90% | 2976 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,492 psi | 89% | 3054 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,831 psi | 70% | 2923 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,157 psi | 85% | 2976 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,390 psi | 87% | 3009 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,201 psi | 87% | 3064 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,318 psi | 57% | 2844 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,230 psi | 85% | 2989 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% | 49,922 psi | 78% | 2808 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,264 psi | 66% | 2723 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,980 psi | 78% | 2890 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 47,674 psi | 75% | 2808 fps | 95.4% |
| Accurate 3100 | <<locked>> | 98% | 39,711 psi | 62% | 2749 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 40,016 psi | 63% | 2717 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 33,823 psi | 53% | 2638 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 46,151 psi | 72% | 2844 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 39,059 psi | 61% | 2680 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,312 psi | 76% | 2854 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 48,950 psi | 77% | 2838 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,206 psi | 66% | 2877 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,885 psi | 61% | 2707 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,785 psi | 65% | 2776 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 34,142 psi | 54% | 2654 fps | 95.2% |
| Alliant Reloder-17 | 58 gr | 80% | 33,605 psi | 53% | 2667 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 31,488 psi | 49% | 2608 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 36,840 psi | 58% | 2805 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,600 psi | 71% | 2851 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 38,522 psi | 60% | 2707 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 47,761 psi | 75% | 2851 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,821 psi | 78% | 2838 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,369 psi | 74% | 2874 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,504 psi | 82% | 3031 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 80% | 39,363 psi | 62% | 2713 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 90% | 44,933 psi | 70% | 2881 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 90% | 48,704 psi | 76% | 2907 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 46,630 psi | 73% | 2858 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 29,327 psi | 46% | 2490 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,656 psi | 67% | 2825 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 90% | 44,730 psi | 70% | 2897 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 41% | 1654 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,715 psi | 70% | 2805 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 46,427 psi | 73% | 2848 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,031 psi | 64% | 2720 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,598 psi | 68% | 2743 fps | 95.2% |
| IMR 4350 | <<locked>> | 92% | 45,266 psi | 71% | 2825 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 86% | 43,830 psi | 69% | 2776 fps | 95.2% |
| IMR 4831 | <<locked>> | 86% | 35,201 psi | 55% | 2654 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 42,844 psi | 67% | 2808 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 80% | 48,312 psi | 76% | 2854 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 45,237 psi | 71% | 2818 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,050 psi | 72% | 2779 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 41,031 psi | 64% | 2723 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 38,189 psi | 60% | 2661 fps | 95.1% |
| Lovex S070 | <<locked>> | 90% | 43,888 psi | 69% | 2802 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 45,034 psi | 71% | 2792 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 45,513 psi | 71% | 2802 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,133 psi | 64% | 2762 fps | 98.5% |
| Norma 204 | <<locked>> | 96% | 51,909 psi | 81% | 2982 fps | 95.3% |
| Norma URP | <<locked>> | 84% | 34,330 psi | 54% | 2644 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 40,930 psi | 64% | 2776 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 41,017 psi | 64% | 2805 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 48,240 psi | 76% | 2861 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,761 psi | 75% | 2877 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,098 psi | 82% | 2904 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,716 psi | 42% | 1693 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,998 psi | 85% | 2936 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,438 psi | 67% | 2753 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,367 psi | 70% | 2887 fps | 98.7% |
| ReloadSwiss RS 60 | 58 gr | 80% | 35,810 psi | 56% | 2743 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 36,201 psi | 57% | 2717 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 38,769 psi | 61% | 2789 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 48,776 psi | 76% | 2831 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,757 psi | 67% | 2740 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 36,172 psi | 57% | 2648 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 47,761 psi | 75% | 2851 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,189 psi | 60% | 2661 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,237 psi | 71% | 2818 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,031 psi | 64% | 2723 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 43,888 psi | 69% | 2802 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,362 psi | 59% | 2703 fps | 97.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,543 psi | 73% | 2831 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,686 psi | 70% | 2812 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,456 psi | 73% | 2746 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,696 psi | 61% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,844 psi | 67% | 2713 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 52,446 psi | 82% | 2936 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,006 psi | 72% | 2743 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,398 psi | 73% | 2828 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 36,985 psi | 58% | 2657 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 26,789 psi | 42% | 2467 fps | 95.3% |
| Somchem S385 | <<locked>> | 98% | 45,745 psi | 72% | 2864 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 52,402 psi | 82% | 2808 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,876 psi | 73% | 2736 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,540 psi | 67% | 2723 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,134 psi | 68% | 2733 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,244 psi | 55% | 2592 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 35,839 psi | 56% | 2648 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 48,472 psi | 76% | 2851 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 41,553 psi | 65% | 2720 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 35,317 psi | 55% | 2648 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 90% | 31,937 psi | 50% | 2631 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,227 psi | 49% | 2507 fps | 96.2% |
| Winchester 748 | <<locked>> | 80% | 48,240 psi | 76% | 2894 fps | 100% |
| Winchester 760 | 63.9 gr | 90% | 45,150 psi | 71% | 2884 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 94% | 29,660 psi | 46% | 2628 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,280 psi | 69% | 2815 fps | 99.4% |
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 | 155.8gr | Peregrine Glider (Glider GRM). Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 1,850 fps to 3,136 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 56–90 %, leaving at least 10 % headroom. The 156.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-16, Alliant Reloder-23 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 60, Alliant Reloder-17, Winchester 760 rank at the top here: for .308 Norma Mag. with the .308 | 155.8gr | Peregrine Glider (Glider GRM) 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.