Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 150gr | Lapua Mega bullet and 95 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and ReloadSwiss RS 70.
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% | 56,898 psi | 89% | 2959 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,941 psi | 88% | 2982 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,883 psi | 88% | 3038 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 56,014 psi | 88% | 2982 fps | 96.8% |
| Accurate 4064 | <<locked>> | 90% | 56,101 psi | 88% | 3035 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,101 psi | 88% | 3120 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 55,970 psi | 88% | 3064 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 57,043 psi | 89% | 3064 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,882 psi | 86% | 3012 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,927 psi | 88% | 2989 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,854 psi | 88% | 3189 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,406 psi | 90% | 3091 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,230 psi | 85% | 3054 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,029 psi | 89% | 3179 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,694 psi | 86% | 3159 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,988 psi | 64% | 2890 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,050 psi | 72% | 3064 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,985 psi | 88% | 3077 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 54,505 psi | 85% | 3051 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,476 psi | 85% | 3015 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,463 psi | 88% | 2995 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,621 psi | 86% | 3041 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,536 psi | 89% | 3146 fps | 99.8% |
| Hodgdon H322 | <<locked>> | 82% | 54,984 psi | 86% | 2999 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,405 psi | 87% | 3061 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 94% | 56,797 psi | 89% | 3140 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 98% | 57,072 psi | 89% | 3097 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 86% | 56,565 psi | 89% | 3074 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,229 psi | 83% | 3045 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 56,405 psi | 88% | 3110 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,898 psi | 88% | 3150 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,549 psi | 56% | 1890 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 56,768 psi | 89% | 3061 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 55,129 psi | 86% | 3035 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 55,869 psi | 88% | 3035 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 92% | 55,158 psi | 86% | 3002 fps | 97.5% |
| IMR 4350 | <<locked>> | 98% | 54,766 psi | 86% | 3038 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,260 psi | 88% | 3048 fps | 97.6% |
| IMR 4831ᴾ | <<locked>> | 100% | 50,111 psi | 79% | 3005 fps | 99% |
| IMR 4895 | <<locked>> | 88% | 55,637 psi | 87% | 3087 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 54,882 psi | 86% | 3012 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,173 psi | 88% | 3041 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,390 psi | 87% | 2989 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 56,434 psi | 88% | 3041 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,941 psi | 88% | 3045 fps | 98.7% |
| Lovex S070 | <<locked>> | 98% | 56,927 psi | 89% | 3081 fps | 98% |
| Norma 201 | <<locked>> | 86% | 54,708 psi | 86% | 3005 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,463 psi | 87% | 3012 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,029 psi | 89% | 3094 fps | 100% |
| Norma URP | <<locked>> | 98% | 55,027 psi | 86% | 3107 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 88% | 54,041 psi | 85% | 3064 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,522 psi | 90% | 3156 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 55,230 psi | 87% | 3028 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,824 psi | 86% | 3048 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,782 psi | 87% | 3012 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,143 psi | 57% | 1936 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,477 psi | 87% | 3038 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,839 psi | 86% | 3123 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,549 psi | 85% | 3163 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,898 psi | 88% | 3140 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,361 psi | 87% | 3169 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 55,695 psi | 87% | 2989 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,274 psi | 87% | 3005 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,302 psi | 85% | 3041 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 54,476 psi | 85% | 3015 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,941 psi | 88% | 3045 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,173 psi | 88% | 3041 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,434 psi | 88% | 3041 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,927 psi | 89% | 3081 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,072 psi | 88% | 3104 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,609 psi | 90% | 3068 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,520 psi | 85% | 3031 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,231 psi | 88% | 2946 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,434 psi | 88% | 2940 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,304 psi | 88% | 2995 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 56,260 psi | 88% | 3045 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,550 psi | 87% | 2940 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,116 psi | 90% | 3054 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 54,534 psi | 85% | 3038 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,997 psi | 83% | 3107 fps | 100% |
| Unknown powder | <<locked>> | 96% | 55,912 psi | 88% | 3110 fps | 99.1% |
| Vihtavuori N130 | <<locked>> | 82% | 55,724 psi | 87% | 2904 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,507 psi | 89% | 2930 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,172 psi | 86% | 2972 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,999 psi | 88% | 2989 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,101 psi | 88% | 3015 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,522 psi | 90% | 3100 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 55,521 psi | 87% | 3012 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,696 psi | 90% | 3031 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,536 psi | 89% | 3107 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,136 psi | 71% | 2976 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,085 psi | 85% | 3022 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,130 psi | 88% | 3071 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,797 psi | 89% | 3140 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,811 psi | 58% | 2890 fps | 98.6% |
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% | 50,198 psi | 79% | 2861 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,989 psi | 67% | 2779 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,820 psi | 77% | 2927 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 49,124 psi | 77% | 2867 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 40,640 psi | 64% | 2772 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 36,883 psi | 58% | 2753 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 46,282 psi | 73% | 2890 fps | 99.1% |
| ADI AR 2208 | <<locked>> | 80% | 39,407 psi | 62% | 2733 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,341 psi | 76% | 2900 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 49,023 psi | 77% | 2887 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,366 psi | 66% | 2927 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,131 psi | 61% | 2753 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,945 psi | 66% | 2822 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 36,825 psi | 58% | 2766 fps | 95.9% |
| Alliant Reloder-17 | 58.6 gr | 80% | 33,939 psi | 53% | 2717 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 92% | 31,879 psi | 50% | 2657 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 94% | 37,144 psi | 58% | 2854 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,730 psi | 72% | 2897 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 38,885 psi | 61% | 2759 fps | 98.6% |
| Bofors RP7 | <<locked>> | 90% | 48,167 psi | 75% | 2900 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,053 psi | 78% | 2890 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,616 psi | 75% | 2927 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,707 psi | 83% | 3084 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 80% | 51,430 psi | 81% | 2943 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,798 psi | 62% | 2766 fps | 96.1% |
| Hodgdon H414 | <<locked>> | 88% | 46,296 psi | 73% | 2953 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 94% | 50,502 psi | 79% | 2982 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 46,731 psi | 73% | 2904 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 31,691 psi | 50% | 2595 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,524 psi | 64% | 2825 fps | 98.9% |
| Hodgdon Superformance | <<locked>> | 92% | 48,312 psi | 76% | 3012 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,484 psi | 42% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,524 psi | 65% | 2785 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 42,786 psi | 67% | 2831 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,522 psi | 60% | 2703 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 86% | 46,108 psi | 72% | 2838 fps | 95.5% |
| IMR 4350 | <<locked>> | 94% | 48,472 psi | 76% | 2930 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,847 psi | 73% | 2877 fps | 95.5% |
| IMR 4831 | <<locked>> | 90% | 36,637 psi | 57% | 2730 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 42,989 psi | 67% | 2854 fps | 98.6% |
| IMR 8208 XBR | <<locked>> | 80% | 48,341 psi | 76% | 2900 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 45,687 psi | 72% | 2871 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,108 psi | 72% | 2825 fps | 99.1% |
| Lovex S062 | <<locked>> | 80% | 41,321 psi | 65% | 2772 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 40,988 psi | 64% | 2762 fps | 95.5% |
| Lovex S070 | <<locked>> | 90% | 44,179 psi | 69% | 2848 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 45,353 psi | 71% | 2844 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 45,716 psi | 72% | 2851 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,336 psi | 65% | 2808 fps | 98.3% |
| Norma URP | <<locked>> | 86% | 37,115 psi | 58% | 2756 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 41,133 psi | 64% | 2825 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 41,336 psi | 65% | 2854 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 48,399 psi | 76% | 2907 fps | 97.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,153 psi | 75% | 2930 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,228 psi | 82% | 2956 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,905 psi | 42% | 1732 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,728 psi | 67% | 2802 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,556 psi | 70% | 2936 fps | 98.4% |
| ReloadSwiss RS 60 | 58.6 gr | 80% | 36,129 psi | 57% | 2792 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 36,680 psi | 57% | 2769 fps | 95.3% |
| ReloadSwiss RS 70 | 65.4 gr | 88% | 39,131 psi | 61% | 2838 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 49,313 psi | 77% | 2887 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,120 psi | 68% | 2792 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 36,593 psi | 57% | 2700 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 48,167 psi | 75% | 2900 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 40,988 psi | 64% | 2762 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,687 psi | 72% | 2871 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,321 psi | 65% | 2772 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 90% | 44,179 psi | 69% | 2848 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,681 psi | 59% | 2753 fps | 97.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,818 psi | 73% | 2881 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,947 psi | 70% | 2861 fps | 98.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,601 psi | 73% | 2795 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,928 psi | 61% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,267 psi | 73% | 2822 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 52,620 psi | 82% | 2989 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,253 psi | 72% | 2795 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,572 psi | 73% | 2877 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 37,362 psi | 59% | 2707 fps | 97.7% |
| Somchem S365 | <<locked>> | 80% | 27,209 psi | 43% | 2516 fps | 95% |
| Unknown powder | <<locked>> | 84% | 37,608 psi | 59% | 2756 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 52,518 psi | 82% | 2858 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,949 psi | 74% | 2785 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,801 psi | 67% | 2776 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,294 psi | 68% | 2782 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,520 psi | 56% | 2638 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 36,158 psi | 57% | 2694 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 48,486 psi | 76% | 2897 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 41,916 psi | 66% | 2769 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 38,072 psi | 60% | 2756 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 92% | 34,650 psi | 54% | 2740 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,575 psi | 49% | 2552 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 52,373 psi | 82% | 3012 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 46,296 psi | 73% | 2953 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,284 psi | 47% | 2677 fps | 95.1% |
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 95 powders for .308 Norma Mag. loaded with the .308 | 150gr | Lapua Mega. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,189 fps; across all powders the maximum-charge window runs from 1,890 fps to 3,189 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 95 of the 95 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 1:11.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Alliant Reloder-26 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-17, ReloadSwiss RS 60, ReloadSwiss RS 70 rank at the top here: for .308 Norma Mag. with the .308 | 150gr | Lapua Mega 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.