Load Specifications
Load data in caliber 7 x 61 S&H (Super) with .284 | 160gr | Speer Grand Slam bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP and Vihtavuori N560.
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>> | 94% | 50,865 psi | 87% | 2762 fps | 99.8% |
| Accurate 4350 | <<locked>> | 86% | 52,286 psi | 89% | 2795 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 51,909 psi | 88% | 2897 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 94% | 52,663 psi | 90% | 2897 fps | 96.8% |
| ADI AR 2209 | <<locked>> | 92% | 53,142 psi | 90% | 2848 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 94% | 50,981 psi | 87% | 2844 fps | 97.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,353 psi | 77% | 2730 fps | 96.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,248 psi | 69% | 2690 fps | 98% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 50,024 psi | 85% | 2789 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,142 psi | 90% | 2854 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 50,430 psi | 86% | 2812 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 52,649 psi | 90% | 2835 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 50,720 psi | 86% | 2844 fps | 98.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 51,517 psi | 88% | 2828 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,749 psi | 86% | 2874 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 51,213 psi | 87% | 2904 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 53,040 psi | 90% | 2881 fps | 98.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,775 psi | 80% | 2805 fps | 97.2% |
| Bofors RP5 | <<locked>> | 94% | 50,720 psi | 86% | 2844 fps | 98.6% |
| Bofors RP7 | <<locked>> | 84% | 52,112 psi | 89% | 2749 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,995 psi | 85% | 2825 fps | 98% |
| Hodgdon H414 | <<locked>> | 84% | 50,836 psi | 87% | 2795 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 82% | 50,343 psi | 86% | 2753 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 92% | 50,908 psi | 87% | 2785 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 92% | 49,937 psi | 85% | 2769 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 50,328 psi | 86% | 2733 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,647 psi | 85% | 2930 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 84% | 50,517 psi | 86% | 2825 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,956 psi | 63% | 1765 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 50,009 psi | 85% | 2730 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 82% | 50,256 psi | 86% | 2720 fps | 99.3% |
| IMR 4831 | <<locked>> | 88% | 52,895 psi | 90% | 2792 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 52,402 psi | 89% | 2776 fps | 97.2% |
| IMR 7828 SSC | <<locked>> | 96% | 52,199 psi | 89% | 2881 fps | 97.8% |
| Lovex S065 | <<locked>> | 84% | 50,749 psi | 86% | 2720 fps | 99.9% |
| Lovex S070 | <<locked>> | 86% | 52,011 psi | 89% | 2762 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,648 psi | 88% | 2772 fps | 99.8% |
| Norma 204 | <<locked>> | 86% | 50,430 psi | 86% | 2776 fps | 98.2% |
| Norma MRP | <<locked>> | 92% | 50,111 psi | 85% | 2861 fps | 99.4% |
| Norma URP | <<locked>> | 86% | 51,097 psi | 87% | 2782 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 52,446 psi | 89% | 2894 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 86% | 49,922 psi | 85% | 2782 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 98% | 50,734 psi | 86% | 2835 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,652 psi | 64% | 1804 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 52,315 psi | 89% | 2822 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 50,517 psi | 86% | 2844 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,922 psi | 85% | 2927 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 82% | 53,069 psi | 90% | 2756 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 51,372 psi | 87% | 2766 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 92% | 52,170 psi | 89% | 2825 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 84% | 52,112 psi | 89% | 2749 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 50,749 psi | 86% | 2720 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 52,011 psi | 89% | 2762 fps | 99.6% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 49,850 psi | 85% | 2671 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 51,735 psi | 88% | 2818 fps | 98.7% |
| Somchem S355 | <<locked>> | 82% | 52,924 psi | 90% | 2749 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 52,547 psi | 89% | 2756 fps | 97% |
| Somchem S365 | <<locked>> | 88% | 51,140 psi | 87% | 2792 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 52,649 psi | 90% | 2799 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 82% | 50,720 psi | 86% | 2674 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 52,808 psi | 90% | 2776 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 52,083 psi | 89% | 2779 fps | 99% |
| Vihtavuori N550 | <<locked>> | 86% | 52,170 psi | 89% | 2782 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 50,444 psi | 86% | 2799 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 50,212 psi | 85% | 2854 fps | 96.9% |
| Vihtavuori N565 | <<locked>> | 98% | 49,690 psi | 85% | 2828 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 52,228 psi | 89% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 50,836 psi | 87% | 2795 fps | 99.4% |
| Winchester StaBALL HD | <<locked>> | 98% | 51,706 psi | 88% | 2953 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 52,460 psi | 89% | 2792 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 3100 | <<locked>> | 80% | 31,618 psi | 54% | 2375 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 42,612 psi | 73% | 2631 fps | 99.7% |
| Accurate High Country | <<locked>> | 86% | 42,076 psi | 72% | 2710 fps | 95.4% |
| Accurate MAGPRO | <<locked>> | 90% | 45,803 psi | 78% | 2772 fps | 95% |
| ADI AR 2209 | <<locked>> | 82% | 38,305 psi | 65% | 2559 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 90% | 44,599 psi | 76% | 2723 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 98% | 42,496 psi | 72% | 2671 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 96% | 35,563 psi | 61% | 2572 fps | 96.2% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 38,595 psi | 66% | 2562 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,944 psi | 70% | 2638 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,978 psi | 80% | 2756 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,218 psi | 65% | 2556 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,754 psi | 66% | 2612 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,458 psi | 52% | 2408 fps | 98.7% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,313 psi | 52% | 2421 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 32,793 psi | 56% | 2526 fps | 97.6% |
| Bofors RP15 | <<locked>> | 88% | 38,247 psi | 65% | 2598 fps | 95.2% |
| Bofors RP30 | <<locked>> | 96% | 40,799 psi | 69% | 2684 fps | 95.4% |
| Bofors RP5 | <<locked>> | 86% | 38,754 psi | 66% | 2612 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 45,992 psi | 78% | 2641 fps | 98.3% |
| Hodgdon H1000 | <<locked>> | 94% | 40,886 psi | 70% | 2641 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 44,367 psi | 76% | 2677 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 80% | 47,079 psi | 80% | 2697 fps | 98% |
| Hodgdon H4831 | <<locked>> | 88% | 44,512 psi | 76% | 2671 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,789 psi | 80% | 2713 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,653 psi | 66% | 2530 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,334 psi | 65% | 2677 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 43,482 psi | 74% | 2697 fps | 98.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,659 psi | 47% | 1575 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,336 psi | 70% | 2569 fps | 97.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,268 psi | 80% | 2664 fps | 98.9% |
| IMR 4831 | <<locked>> | 80% | 40,799 psi | 69% | 2582 fps | 99.5% |
| IMR 4955 Enduron | <<locked>> | 88% | 46,383 psi | 79% | 2671 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 90% | 42,728 psi | 73% | 2697 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 44,889 psi | 76% | 2618 fps | 99.3% |
| Lovex S070 | <<locked>> | 80% | 43,221 psi | 74% | 2605 fps | 98.4% |
| Lovex S071 | <<locked>> | 84% | 31,140 psi | 53% | 2362 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 41,205 psi | 70% | 2602 fps | 96% |
| Norma MRP | 57 gr | 82% | 35,230 psi | 60% | 2556 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 42,177 psi | 72% | 2625 fps | 99.6% |
| Ramshot Grand | <<locked>> | 90% | 42,424 psi | 72% | 2703 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 40,944 psi | 70% | 2615 fps | 98.4% |
| Ramshot Magnum | <<locked>> | 88% | 35,143 psi | 60% | 2520 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,152 psi | 48% | 1611 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,540 psi | 72% | 2651 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,828 psi | 70% | 2664 fps | 99.3% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,172 psi | 60% | 2592 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 49,792 psi | 85% | 2703 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,308 psi | 72% | 2598 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 82% | 37,478 psi | 64% | 2543 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 45,992 psi | 78% | 2641 fps | 98.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,889 psi | 76% | 2618 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 80% | 43,221 psi | 74% | 2605 fps | 98.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,947 psi | 75% | 2566 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,130 psi | 63% | 2536 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 49,719 psi | 85% | 2700 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,137 psi | 79% | 2644 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 38,740 psi | 66% | 2579 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,578 psi | 61% | 2470 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 47,601 psi | 81% | 2628 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,410 psi | 74% | 2618 fps | 99.7% |
| Vihtavuori N165 | <<locked>> | 86% | 37,405 psi | 64% | 2507 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 42,902 psi | 73% | 2621 fps | 99.6% |
| Vihtavuori N555 | <<locked>> | 80% | 34,069 psi | 58% | 2484 fps | 98.7% |
| Vihtavuori N560 | 61.2 gr | 88% | 43,714 psi | 74% | 2726 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 94% | 43,468 psi | 74% | 2713 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,467 psi | 72% | 2585 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,585 psi | 76% | 2680 fps | 98.5% |
| Winchester StaBALL HD | 55.1 gr | 80% | 26,992 psi | 46% | 2402 fps | 98.4% |
| Winchester Supreme 780 | <<locked>> | 86% | 39,726 psi | 68% | 2559 fps | 95.7% |
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 70 powders for 7 x 61 S&H (Super) loaded with the .284 | 160gr | Speer Grand Slam. Winchester StaBALL HD delivers the highest muzzle velocity at 2,953 fps; across all powders the maximum-charge window runs from 1,765 fps to 2,953 fps. ADI AR 2217 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 63–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Winchester StaBALL HD, Norma MRP, Vihtavuori N560 rank at the top here: for 7 x 61 S&H (Super) with the .284 | 160gr | Speer Grand Slam 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.