
Load Specifications
Load data in caliber 7 x 61 S&H (Super) with .284 | 150gr | Sierra GameKing bullet and 70 powders. The key underlying parameters are shown in the table above.
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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 51,358 psi | 87% | 2851 fps | 99.6% |
| Accurate 4350 | <<locked>> | 86% | 49,574 psi | 84% | 2838 fps | 99.9% |
| Accurate High Country | <<locked>> | 94% | 52,460 psi | 89% | 2992 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 52,156 psi | 89% | 2818 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 50,546 psi | 86% | 2884 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 96% | 51,677 psi | 88% | 2933 fps | 96.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,072 psi | 65% | 2703 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,040 psi | 90% | 2841 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 50,444 psi | 86% | 2900 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 51,227 psi | 87% | 2917 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 50,067 psi | 85% | 2874 fps | 97.7% |
| Alliant Reloder-22 | <<locked>> | 96% | 51,082 psi | 87% | 2933 fps | 98.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 51,793 psi | 88% | 2920 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,906 psi | 82% | 2910 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 51,750 psi | 88% | 3002 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 50,111 psi | 85% | 2913 fps | 97.8% |
| Bofors RP5 | <<locked>> | 96% | 51,082 psi | 87% | 2933 fps | 98.1% |
| Bofors RP7 | <<locked>> | 84% | 49,951 psi | 85% | 2792 fps | 98.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,369 psi | 81% | 2848 fps | 96.6% |
| Hodgdon H414 | <<locked>> | 86% | 51,547 psi | 88% | 2890 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 84% | 51,242 psi | 87% | 2851 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 94% | 51,837 psi | 88% | 2877 fps | 96.2% |
| Hodgdon H4831 SC | <<locked>> | 94% | 50,807 psi | 86% | 2861 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 50,749 psi | 86% | 2828 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,847 psi | 80% | 2949 fps | 98% |
| Hodgdon Superformance | <<locked>> | 86% | 51,503 psi | 88% | 2923 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,666 psi | 62% | 1818 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 50,836 psi | 87% | 2825 fps | 98.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 51,285 psi | 87% | 2818 fps | 99% |
| IMR 4831 | <<locked>> | 88% | 50,314 psi | 86% | 2838 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 50,096 psi | 85% | 2815 fps | 96% |
| IMR 7828 SSC | <<locked>> | 98% | 52,765 psi | 90% | 2966 fps | 97.2% |
| Lovex S065 | <<locked>> | 86% | 51,706 psi | 88% | 2822 fps | 99.7% |
| Lovex S070 | <<locked>> | 88% | 52,866 psi | 90% | 2861 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,791 psi | 83% | 2808 fps | 99.3% |
| Norma 204 | <<locked>> | 88% | 51,416 psi | 88% | 2874 fps | 97.8% |
| Norma MRP | <<locked>> | 94% | 50,633 psi | 86% | 2956 fps | 99.1% |
| Norma URP | <<locked>> | 88% | 51,837 psi | 88% | 2881 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 49,458 psi | 84% | 2920 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 88% | 50,734 psi | 86% | 2881 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,343 psi | 87% | 2923 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 64% | 1857 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 50,676 psi | 86% | 2907 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,069 psi | 90% | 2920 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 51,314 psi | 87% | 2943 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,224 psi | 80% | 2949 fps | 99% |
| Rottweil R 903 | <<locked>> | 82% | 50,662 psi | 86% | 2805 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,199 psi | 89% | 2858 fps | 97% |
| Rottweil R 905 | <<locked>> | 94% | 52,779 psi | 90% | 2917 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 84% | 49,951 psi | 85% | 2792 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 51,706 psi | 88% | 2822 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 52,866 psi | 90% | 2861 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 51,779 psi | 88% | 2858 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 51,343 psi | 87% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 51,140 psi | 87% | 2769 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 52,330 psi | 89% | 2913 fps | 98.3% |
| Somchem S355 | <<locked>> | 82% | 50,633 psi | 86% | 2802 fps | 100% |
| Somchem S365 | <<locked>> | 90% | 51,590 psi | 88% | 2887 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 50,067 psi | 85% | 2838 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 84% | 51,706 psi | 88% | 2776 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 50,328 psi | 86% | 2822 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 98% | 52,649 psi | 90% | 2867 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 88% | 52,881 psi | 90% | 2881 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 50,807 psi | 86% | 2894 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 50,792 psi | 86% | 2943 fps | 96.3% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,125 psi | 85% | 2917 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,113 psi | 90% | 2838 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 51,764 psi | 88% | 2894 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 51,619 psi | 88% | 3048 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 49,748 psi | 85% | 2828 fps | 97.6% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 82% | 31,995 psi | 54% | 2457 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 40,364 psi | 69% | 2667 fps | 99.1% |
| Accurate High Country | <<locked>> | 90% | 45,571 psi | 78% | 2861 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 49,037 psi | 83% | 2769 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 41,452 psi | 71% | 2703 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 92% | 45,194 psi | 77% | 2808 fps | 95% |
| ADI AR 2225 | <<locked>> | 98% | 35,810 psi | 61% | 2644 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,850 psi | 85% | 2792 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,928 psi | 66% | 2674 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,454 psi | 76% | 2799 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 41,249 psi | 70% | 2697 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 90% | 41,843 psi | 71% | 2756 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,848 psi | 49% | 2431 fps | 97.4% |
| Alliant Reloder-25 | <<locked>> | 88% | 32,547 psi | 55% | 2552 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 30,850 psi | 53% | 2543 fps | 95.9% |
| Bofors RP15 | <<locked>> | 92% | 41,321 psi | 70% | 2740 fps | 95.4% |
| Bofors RP5 | <<locked>> | 90% | 41,843 psi | 71% | 2756 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 43,903 psi | 75% | 2677 fps | 97.3% |
| Hodgdon H1000 | <<locked>> | 98% | 44,396 psi | 76% | 2785 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 42,206 psi | 72% | 2713 fps | 97.4% |
| Hodgdon H4350 | <<locked>> | 80% | 45,020 psi | 77% | 2733 fps | 96.8% |
| Hodgdon H4831 | <<locked>> | 92% | 48,356 psi | 82% | 2818 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,442 psi | 81% | 2802 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,651 psi | 62% | 2569 fps | 99.5% |
| Hodgdon Retumbo | <<locked>> | 96% | 41,278 psi | 70% | 2822 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 41,133 psi | 70% | 2726 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 47% | 1624 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,479 psi | 67% | 2605 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,353 psi | 77% | 2707 fps | 98% |
| IMR 4831 | <<locked>> | 80% | 38,725 psi | 66% | 2618 fps | 98.8% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,137 psi | 80% | 2759 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 94% | 46,093 psi | 78% | 2841 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 42,989 psi | 73% | 2661 fps | 98.6% |
| Lovex S070 | <<locked>> | 80% | 41,104 psi | 70% | 2638 fps | 97.3% |
| Lovex S071 | <<locked>> | 88% | 33,344 psi | 57% | 2490 fps | 95.6% |
| Norma 204 | <<locked>> | 82% | 41,814 psi | 71% | 2690 fps | 95.3% |
| Norma MRP | <<locked>> | 84% | 35,621 psi | 61% | 2638 fps | 95% |
| Norma URP | <<locked>> | 80% | 39,856 psi | 68% | 2657 fps | 98.9% |
| Ramshot Grand | <<locked>> | 94% | 46,253 psi | 79% | 2858 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 38,827 psi | 66% | 2648 fps | 97.3% |
| Ramshot Magnum | <<locked>> | 92% | 38,159 psi | 65% | 2661 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,876 psi | 47% | 1660 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,195 psi | 80% | 2851 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,234 psi | 68% | 2687 fps | 98.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,740 psi | 66% | 2694 fps | 98.4% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,985 psi | 65% | 2736 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 47,282 psi | 80% | 2749 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 45,818 psi | 78% | 2743 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 86% | 40,480 psi | 69% | 2684 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 43,903 psi | 75% | 2677 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,989 psi | 73% | 2661 fps | 98.6% |
| Shooters World SW4350 | <<locked>> | 80% | 41,104 psi | 70% | 2638 fps | 97.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,660 psi | 83% | 2805 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,182 psi | 82% | 2644 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,930 psi | 71% | 2602 fps | 97.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 40,118 psi | 68% | 2677 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 47,601 psi | 81% | 2749 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 36,463 psi | 62% | 2615 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 38,493 psi | 66% | 2612 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 45,310 psi | 77% | 2674 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,321 psi | 70% | 2657 fps | 99.1% |
| Vihtavuori N165 | <<locked>> | 88% | 37,985 psi | 65% | 2592 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 40,857 psi | 70% | 2661 fps | 98.9% |
| Vihtavuori N555 | <<locked>> | 80% | 32,082 psi | 55% | 2510 fps | 97.5% |
| Vihtavuori N560 | <<locked>> | 92% | 47,442 psi | 81% | 2881 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 98% | 46,731 psi | 80% | 2854 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,393 psi | 69% | 2625 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 42,409 psi | 72% | 2720 fps | 97.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,512 psi | 43% | 2408 fps | 96.4% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,379 psi | 69% | 2648 fps | 95.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 70 powders for 7 x 61 S&H (Super) loaded with the .284 | 150gr | Sierra GameKing. Winchester StaBALL HD delivers the highest muzzle velocity at 3,048 fps; across all powders the maximum-charge window runs from 1,818 fps to 3,048 fps. ADI AR 2225 gives the best case fill at 100 %, and 70 of the 70 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Hodgdon H1000 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.