Load Specifications
Load data in caliber 7.62 UKM with .308 | 170gr | Sako Powerhead Blade 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-26, Norma MRP 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 2495 | <<locked>> | 82% | 55,056 psi | 86% | 2828 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,956 psi | 89% | 2910 fps | 99.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,940 psi | 86% | 2949 fps | 99.8% |
| Accurate 4064 | <<locked>> | 84% | 55,608 psi | 87% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,043 psi | 89% | 3002 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 57,711 psi | 90% | 3104 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 86% | 56,086 psi | 88% | 2923 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,563 psi | 86% | 2992 fps | 98.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,869 psi | 88% | 3045 fps | 97.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,680 psi | 87% | 3048 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 54,621 psi | 86% | 2989 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,971 psi | 89% | 2946 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,072 psi | 89% | 2969 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,404 psi | 85% | 3009 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,506 psi | 87% | 3028 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,435 psi | 90% | 3035 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,839 psi | 86% | 3038 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,750 psi | 81% | 2966 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,947 psi | 70% | 2894 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 98% | 55,811 psi | 87% | 3110 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,082 psi | 78% | 2956 fps | 97.6% |
| Bofors RP3 | <<locked>> | 84% | 54,012 psi | 85% | 2907 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,839 psi | 86% | 3038 fps | 98.5% |
| Bofors RP7 | <<locked>> | 90% | 57,188 psi | 90% | 2953 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 84% | 54,418 psi | 85% | 2927 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 55,666 psi | 87% | 3002 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 88% | 55,434 psi | 87% | 2963 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 98% | 56,159 psi | 88% | 2989 fps | 96.8% |
| Hodgdon H4831 SC | <<locked>> | 98% | 54,940 psi | 86% | 2969 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,621 psi | 86% | 2930 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,956 psi | 88% | 2963 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,888 psi | 69% | 2920 fps | 96.8% |
| Hodgdon Superformance | <<locked>> | 90% | 56,072 psi | 88% | 3038 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,318 psi | 57% | 1837 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,579 psi | 89% | 2927 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,492 psi | 87% | 2907 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,607 psi | 86% | 2890 fps | 99.3% |
| IMR 4350 | <<locked>> | 92% | 54,766 psi | 86% | 2930 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,390 psi | 87% | 2927 fps | 99.3% |
| IMR 4831 | <<locked>> | 94% | 57,508 psi | 90% | 2992 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,027 psi | 86% | 2943 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,450 psi | 90% | 2976 fps | 97.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,229 psi | 83% | 3015 fps | 97% |
| Lovex S060 | <<locked>> | 82% | 57,072 psi | 89% | 2894 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,709 psi | 87% | 2897 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,477 psi | 87% | 2923 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 56,666 psi | 89% | 2963 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,411 psi | 71% | 2792 fps | 98.7% |
| Norma 201 | <<locked>> | 82% | 56,826 psi | 89% | 2907 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,362 psi | 88% | 2953 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,622 psi | 87% | 2986 fps | 98.3% |
| Norma MRP | <<locked>> | 98% | 54,462 psi | 85% | 3064 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 55,651 psi | 87% | 2986 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 57,624 psi | 90% | 2986 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,809 psi | 84% | 3035 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 92% | 54,520 psi | 85% | 2986 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,935 psi | 75% | 2900 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,956 psi | 58% | 1883 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,433 psi | 85% | 2910 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,984 psi | 86% | 3022 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,116 psi | 90% | 3025 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,593 psi | 87% | 3054 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,019 psi | 69% | 2917 fps | 98% |
| Rottweil R 902 | <<locked>> | 84% | 57,537 psi | 90% | 2910 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,331 psi | 85% | 2907 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,318 psi | 88% | 2966 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 98% | 56,840 psi | 89% | 3025 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 90% | 57,188 psi | 90% | 2953 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,477 psi | 87% | 2923 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 55,709 psi | 87% | 2897 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,666 psi | 89% | 2963 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,941 psi | 88% | 2966 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,014 psi | 89% | 2943 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,390 psi | 87% | 2792 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,998 psi | 86% | 2874 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,362 psi | 88% | 3018 fps | 98.7% |
| Somchem S335 | <<locked>> | 82% | 57,319 psi | 90% | 2831 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,638 psi | 90% | 2953 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,331 psi | 85% | 2897 fps | 96.4% |
| Somchem S365 | <<locked>> | 94% | 55,332 psi | 87% | 2989 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,406 psi | 90% | 2995 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 82% | 54,650 psi | 86% | 2822 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,839 psi | 86% | 2835 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,680 psi | 87% | 2877 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,317 psi | 85% | 2927 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,098 psi | 83% | 2913 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 84% | 56,463 psi | 88% | 2877 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,072 psi | 89% | 2989 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,201 psi | 85% | 2995 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,723 psi | 86% | 3054 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,041 psi | 85% | 2894 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,898 psi | 88% | 3005 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,108 psi | 74% | 3028 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,087 psi | 89% | 2949 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 57,725 psi | 90% | 2992 fps | 98.7% |
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% | 51,561 psi | 81% | 2779 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,661 psi | 78% | 2792 fps | 98% |
| Accurate 3100 | <<locked>> | 86% | 33,634 psi | 53% | 2543 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 48,892 psi | 77% | 2785 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,275 psi | 58% | 2644 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 96% | 49,806 psi | 78% | 2969 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 46,456 psi | 73% | 2766 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 41,814 psi | 66% | 2753 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 96% | 48,733 psi | 76% | 2917 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,880 psi | 81% | 2989 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 41,800 psi | 66% | 2749 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,891 psi | 73% | 2789 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,125 psi | 79% | 2861 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,506 psi | 57% | 2661 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,713 psi | 65% | 2795 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,350 psi | 65% | 2743 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,698 psi | 65% | 2795 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,556 psi | 42% | 2402 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,358 psi | 51% | 2585 fps | 95.3% |
| Alliant Reloder-26 | 68 gr | 82% | 30,472 psi | 48% | 2575 fps | 95.4% |
| Bofors RP15 | <<locked>> | 94% | 41,118 psi | 64% | 2779 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 47,181 psi | 74% | 2799 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 41,698 psi | 65% | 2795 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 41,481 psi | 65% | 2671 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 80% | 47,674 psi | 75% | 2812 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 39,624 psi | 62% | 2703 fps | 96.4% |
| Hodgdon H4350 | <<locked>> | 80% | 42,496 psi | 67% | 2723 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 94% | 48,776 psi | 76% | 2864 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,184 psi | 80% | 2907 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,982 psi | 53% | 2552 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,272 psi | 82% | 2910 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,162 psi | 65% | 2858 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 38,609 psi | 61% | 2710 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,079 psi | 42% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,910 psi | 83% | 2874 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,863 psi | 77% | 2799 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,329 psi | 80% | 2835 fps | 98.9% |
| IMR 4350 | <<locked>> | 82% | 39,668 psi | 62% | 2651 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,047 psi | 67% | 2703 fps | 97.2% |
| IMR 4831 | <<locked>> | 80% | 35,926 psi | 56% | 2598 fps | 98% |
| IMR 4895 | <<locked>> | 80% | 51,445 psi | 81% | 2890 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,734 psi | 80% | 2864 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 96% | 46,412 psi | 73% | 2887 fps | 95.2% |
| Lovex S060 | <<locked>> | 80% | 53,664 psi | 84% | 2841 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,110 psi | 77% | 2799 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,393 psi | 63% | 2648 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 38,653 psi | 61% | 2628 fps | 96.3% |
| Lovex S071 | <<locked>> | 90% | 32,576 psi | 51% | 2516 fps | 95% |
| Norma 201 | <<locked>> | 80% | 53,330 psi | 84% | 2858 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,443 psi | 77% | 2844 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,076 psi | 66% | 2740 fps | 95.1% |
| Norma MRP | 70.9 gr | 88% | 38,159 psi | 60% | 2743 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 37,347 psi | 59% | 2648 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 50,154 psi | 79% | 2871 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,412 psi | 73% | 2897 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 36,274 psi | 57% | 2631 fps | 96.2% |
| Ramshot Magnum | <<locked>> | 96% | 41,147 psi | 64% | 2766 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,543 psi | 43% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,674 psi | 75% | 2795 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,396 psi | 70% | 2848 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,275 psi | 58% | 2667 fps | 98% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,274 psi | 57% | 2677 fps | 97.4% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,927 psi | 59% | 2769 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 50,720 psi | 79% | 2808 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,469 psi | 70% | 2746 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,253 psi | 72% | 2789 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 40,379 psi | 63% | 2723 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 41,481 psi | 65% | 2671 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,393 psi | 63% | 2648 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 49,110 psi | 77% | 2799 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,653 psi | 61% | 2628 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,876 psi | 72% | 2802 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,374 psi | 84% | 2887 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,861 psi | 72% | 2654 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,552 psi | 62% | 2592 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,815 psi | 67% | 2776 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 53,911 psi | 84% | 2785 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,744 psi | 70% | 2743 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,647 psi | 79% | 2838 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 33,692 psi | 53% | 2598 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 38,319 psi | 60% | 2648 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 51,198 psi | 80% | 2769 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,488 psi | 81% | 2789 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,801 psi | 67% | 2674 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,667 psi | 61% | 2644 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 40,437 psi | 63% | 2684 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 49,705 psi | 78% | 2779 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,203 psi | 60% | 2648 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 80% | 29,225 psi | 46% | 2477 fps | 96% |
| Vihtavuori N560 | <<locked>> | 94% | 47,572 psi | 75% | 2923 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,884 psi | 59% | 2615 fps | 99.7% |
| Winchester 760 | 63.4 gr | 80% | 39,624 psi | 62% | 2703 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,034 psi | 39% | 2428 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,388 psi | 84% | 2894 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,395 psi | 68% | 2749 fps | 95.8% |
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 7.62 UKM loaded with the .308 | 170gr | Sako Powerhead Blade. Alliant Reloder-26 delivers the highest muzzle velocity at 3,110 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,110 fps. Accurate 3100 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 57–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, 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. Alliant Reloder-26, Norma MRP, Winchester 760 rank at the top here: for 7.62 UKM with the .308 | 170gr | Sako Powerhead Blade 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.