Load Specifications
Load data in caliber .308 Norma Mag. with .308 | 148gr | Hasler ARIETE bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, Alliant Reloder-17 and ReloadSwiss RS 60.
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% | 55,840 psi | 88% | 2976 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 54,491 psi | 85% | 2995 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 56,521 psi | 89% | 3068 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 57,696 psi | 90% | 3051 fps | 97.1% |
| Accurate 4064 | <<locked>> | 90% | 54,694 psi | 86% | 3045 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,940 psi | 86% | 3130 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 86% | 55,201 psi | 87% | 3081 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 56,521 psi | 89% | 3081 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 57,711 psi | 90% | 3084 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,245 psi | 87% | 3009 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,201 psi | 87% | 3205 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 55,912 psi | 88% | 3094 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 56,434 psi | 88% | 3104 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 57,145 psi | 90% | 3130 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,304 psi | 88% | 3196 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,085 psi | 85% | 3176 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,074 psi | 63% | 2897 fps | 98.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,266 psi | 71% | 3074 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,361 psi | 87% | 3097 fps | 99.5% |
| Bofors RP3 | <<locked>> | 92% | 57,217 psi | 90% | 3120 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 57,319 psi | 90% | 3091 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,854 psi | 88% | 3015 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 57,450 psi | 90% | 3117 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,651 psi | 87% | 3163 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 90% | 54,331 psi | 85% | 3074 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 96% | 54,360 psi | 85% | 3127 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 94% | 54,882 psi | 86% | 3087 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 86% | 55,753 psi | 87% | 3091 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,446 psi | 82% | 3058 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,477 psi | 87% | 3123 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,114 psi | 86% | 3166 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,375 psi | 55% | 1909 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,072 psi | 89% | 3094 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 55,956 psi | 88% | 3077 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,898 psi | 88% | 3064 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 55,637 psi | 87% | 3038 fps | 97.6% |
| IMR 4350 | <<locked>> | 98% | 54,244 psi | 85% | 3058 fps | 96.8% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,651 psi | 87% | 3068 fps | 97.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,622 psi | 87% | 3123 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 54,737 psi | 86% | 3104 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 57,711 psi | 90% | 3084 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,071 psi | 86% | 3054 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,795 psi | 86% | 3009 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 55,477 psi | 87% | 3058 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,853 psi | 86% | 3054 fps | 98.6% |
| Lovex S070 | <<locked>> | 98% | 56,043 psi | 88% | 3094 fps | 97.9% |
| Norma 201 | <<locked>> | 88% | 57,334 psi | 90% | 3077 fps | 100% |
| Norma 202 | <<locked>> | 86% | 54,389 psi | 85% | 3025 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,318 psi | 88% | 3114 fps | 99.9% |
| Norma URP | <<locked>> | 98% | 54,143 psi | 85% | 3120 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 90% | 57,116 psi | 90% | 3140 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 56,840 psi | 89% | 3176 fps | 98.6% |
| Ramshot TAC | <<locked>> | 84% | 54,621 psi | 86% | 3045 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,230 psi | 85% | 3064 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,998 psi | 86% | 3028 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,882 psi | 56% | 1955 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,058 psi | 89% | 3061 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 54,723 psi | 86% | 3054 fps | 98% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 53,925 psi | 85% | 3140 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 53,780 psi | 84% | 3179 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,071 psi | 86% | 3156 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,607 psi | 86% | 3186 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 54,447 psi | 85% | 3005 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 54,302 psi | 85% | 3022 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 57,058 psi | 89% | 3110 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 57,319 psi | 90% | 3091 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,853 psi | 86% | 3054 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,071 psi | 86% | 3054 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,477 psi | 87% | 3058 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,043 psi | 88% | 3094 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,347 psi | 87% | 3120 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 56,753 psi | 89% | 3084 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 57,421 psi | 90% | 3107 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,361 psi | 87% | 2963 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,709 psi | 87% | 2959 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,405 psi | 87% | 3009 fps | 97.5% |
| Somchem S321 | <<locked>> | 82% | 55,390 psi | 87% | 3061 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,708 psi | 86% | 2959 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 56,434 psi | 88% | 3074 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 57,087 psi | 89% | 3107 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,257 psi | 82% | 3123 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 54,911 psi | 86% | 2923 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,680 psi | 87% | 2949 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,070 psi | 85% | 2986 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,230 psi | 87% | 3005 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,332 psi | 87% | 3031 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 56,652 psi | 89% | 3117 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 54,520 psi | 85% | 3028 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 56,753 psi | 89% | 3048 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 55,579 psi | 87% | 3120 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,237 psi | 69% | 2982 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 57,217 psi | 90% | 3094 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,810 psi | 86% | 3081 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 54,650 psi | 86% | 3133 fps | 97.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,897 psi | 56% | 2894 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 57,319 psi | 90% | 3114 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% | 49,197 psi | 77% | 2877 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,481 psi | 65% | 2782 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,110 psi | 77% | 2953 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 50,589 psi | 79% | 2933 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 39,262 psi | 62% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,752 psi | 56% | 2749 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 45,556 psi | 71% | 2907 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 38,638 psi | 61% | 2743 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,718 psi | 75% | 2920 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 48,138 psi | 75% | 2904 fps | 100% |
| Alliant Power Pro 2000-MR | 60.5 gr | 80% | 41,626 psi | 65% | 2936 fps | 97.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 46,166 psi | 72% | 2920 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,203 psi | 60% | 2762 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,205 psi | 65% | 2835 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,911 psi | 56% | 2769 fps | 95.4% |
| Alliant Reloder-17 | 59.5 gr | 80% | 32,996 psi | 52% | 2717 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 92% | 31,053 psi | 49% | 2654 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 96% | 38,972 psi | 61% | 2927 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,991 psi | 71% | 2910 fps | 98.1% |
| Bofors RP3 | <<locked>> | 80% | 37,884 psi | 59% | 2766 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 47,253 psi | 74% | 2913 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,327 psi | 77% | 2907 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,746 psi | 73% | 2940 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,895 psi | 81% | 3100 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 80% | 38,740 psi | 61% | 2769 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 90% | 44,237 psi | 69% | 2936 fps | 95% |
| Hodgdon H4350 | <<locked>> | 92% | 51,503 psi | 81% | 3028 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 46,021 psi | 72% | 2920 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,908 psi | 48% | 2598 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,119 psi | 66% | 2884 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 92% | 47,601 psi | 75% | 3025 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,237 psi | 41% | 1706 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,179 psi | 69% | 2867 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 45,614 psi | 71% | 2913 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,567 psi | 64% | 2779 fps | 97.7% |
| IMR 4166 Enduron | <<locked>> | 82% | 46,093 psi | 72% | 2864 fps | 95.4% |
| IMR 4350 | <<locked>> | 94% | 47,587 psi | 75% | 2940 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,151 psi | 72% | 2894 fps | 95.3% |
| IMR 4831 | <<locked>> | 86% | 34,635 psi | 54% | 2703 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 42,250 psi | 66% | 2867 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 47,718 psi | 75% | 2920 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 44,744 psi | 70% | 2884 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,368 psi | 71% | 2841 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 40,379 psi | 63% | 2782 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 40,103 psi | 63% | 2772 fps | 95.2% |
| Lovex S070 | <<locked>> | 92% | 46,253 psi | 72% | 2920 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 44,324 psi | 69% | 2851 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 44,759 psi | 70% | 2864 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,553 psi | 64% | 2822 fps | 98.1% |
| Norma URP | <<locked>> | 86% | 36,245 psi | 57% | 2759 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 40,335 psi | 63% | 2835 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 43,250 psi | 68% | 2923 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 47,645 psi | 75% | 2923 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,152 psi | 74% | 2943 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,503 psi | 81% | 2972 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,600 psi | 42% | 1745 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,519 psi | 84% | 3009 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 44,875 psi | 70% | 2874 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,584 psi | 68% | 2946 fps | 98.2% |
| ReloadSwiss RS 60 | 59.5 gr | 80% | 35,172 psi | 55% | 2792 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 38,319 psi | 60% | 2835 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 41,104 psi | 64% | 2913 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 80% | 48,138 psi | 75% | 2900 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,134 psi | 66% | 2802 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 35,476 psi | 56% | 2700 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 90% | 47,253 psi | 74% | 2913 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 86% | 40,103 psi | 63% | 2772 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,744 psi | 70% | 2884 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,379 psi | 63% | 2782 fps | 99% |
| Shooters World SW4350 | <<locked>> | 92% | 46,253 psi | 72% | 2920 fps | 95.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,724 psi | 58% | 2756 fps | 96.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,905 psi | 72% | 2894 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,048 psi | 69% | 2871 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,832 psi | 72% | 2808 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,145 psi | 60% | 2664 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 45,266 psi | 71% | 2831 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 51,779 psi | 81% | 3005 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,324 psi | 71% | 2808 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,788 psi | 72% | 2890 fps | 99% |
| Somchem S355 | <<locked>> | 80% | 36,347 psi | 57% | 2710 fps | 97.4% |
| Somchem S365 | <<locked>> | 82% | 28,181 psi | 44% | 2575 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 51,735 psi | 81% | 2877 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,253 psi | 72% | 2805 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,872 psi | 66% | 2789 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,395 psi | 66% | 2792 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,577 psi | 54% | 2641 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 86% | 37,811 psi | 59% | 2762 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 47,819 psi | 75% | 2917 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 40,973 psi | 64% | 2779 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 37,159 psi | 58% | 2759 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 33,533 psi | 53% | 2736 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,777 psi | 48% | 2556 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 47,645 psi | 75% | 2963 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 44,454 psi | 70% | 2943 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 96% | 31,256 psi | 49% | 2740 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,526 psi | 68% | 2874 fps | 99.1% |
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 114 powders for .308 Norma Mag. loaded with the .308 | 148gr | Hasler ARIETE. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,205 fps; across all powders the maximum-charge window runs from 1,909 fps to 3,205 fps. Accurate 3100 gives the best case fill at 100 %, and 114 of the 114 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 148.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, ADI AR 2209 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 Power Pro 2000-MR, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .308 Norma Mag. with the .308 | 148gr | Hasler ARIETE they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate High Country, ADI AR 2209, Alliant Reloder-19 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.