Load Specifications
Load data in caliber 7 x 61 S&H (Super) with .284 | 145gr | Speer Grand Slam bullet and 68 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% | 50,647 psi | 86% | 2884 fps | 99.4% |
| Accurate 4350 | <<locked>> | 88% | 52,170 psi | 89% | 2927 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 51,648 psi | 88% | 3018 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 82% | 51,503 psi | 88% | 2854 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 49,777 psi | 85% | 2913 fps | 97.3% |
| ADI AR 2213 | <<locked>> | 96% | 51,039 psi | 87% | 2963 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,330 psi | 89% | 2881 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,055 psi | 90% | 2989 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 50,459 psi | 86% | 2953 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,707 psi | 90% | 2963 fps | 97.9% |
| Alliant Reloder-22 | <<locked>> | 96% | 50,386 psi | 86% | 2963 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 98% | 51,082 psi | 87% | 2956 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,224 psi | 80% | 2936 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 94% | 50,807 psi | 86% | 3031 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,634 psi | 90% | 3002 fps | 98% |
| Bofors RP3 | <<locked>> | 82% | 52,997 psi | 90% | 2894 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 50,386 psi | 86% | 2963 fps | 97.7% |
| Bofors RP7 | <<locked>> | 86% | 52,344 psi | 89% | 2877 fps | 98.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,731 psi | 80% | 2871 fps | 96% |
| Hodgdon H414 | <<locked>> | 86% | 50,792 psi | 86% | 2923 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 84% | 50,618 psi | 86% | 2884 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 50,067 psi | 85% | 2861 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,166 psi | 79% | 2972 fps | 97.4% |
| Hodgdon Superformance | <<locked>> | 86% | 50,560 psi | 86% | 2949 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,680 psi | 62% | 1850 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 50,212 psi | 85% | 2858 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 50,778 psi | 86% | 2854 fps | 98.7% |
| IMR 4831 | <<locked>> | 90% | 52,823 psi | 90% | 2923 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,794 psi | 90% | 2904 fps | 96.3% |
| IMR 7828 SSC | <<locked>> | 98% | 52,069 psi | 89% | 2995 fps | 96.6% |
| Lovex S065 | <<locked>> | 86% | 50,923 psi | 87% | 2851 fps | 99.5% |
| Lovex S070 | <<locked>> | 88% | 52,243 psi | 89% | 2894 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,153 psi | 82% | 2841 fps | 99.1% |
| Norma 204 | <<locked>> | 88% | 50,662 psi | 86% | 2904 fps | 97.3% |
| Norma MRP | <<locked>> | 94% | 49,850 psi | 85% | 2986 fps | 98.7% |
| Norma URP | <<locked>> | 88% | 51,111 psi | 87% | 2913 fps | 99.9% |
| Ramshot Grand | <<locked>> | 98% | 52,373 psi | 89% | 3012 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 88% | 49,966 psi | 85% | 2913 fps | 99.3% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,415 psi | 86% | 2949 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 64% | 1893 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,055 psi | 90% | 2890 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 49,937 psi | 85% | 2943 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,228 psi | 89% | 2953 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 50,430 psi | 86% | 2976 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,383 psi | 79% | 2969 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 84% | 53,127 psi | 90% | 2890 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 51,488 psi | 88% | 2887 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 94% | 51,938 psi | 88% | 2946 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 86% | 52,344 psi | 89% | 2877 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 50,923 psi | 87% | 2851 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 52,243 psi | 89% | 2894 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 51,184 psi | 87% | 2894 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 50,734 psi | 86% | 2730 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 50,285 psi | 86% | 2799 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 51,488 psi | 88% | 2940 fps | 97.8% |
| Somchem S355 | <<locked>> | 84% | 53,113 psi | 90% | 2887 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,924 psi | 90% | 2881 fps | 96% |
| Somchem S365 | <<locked>> | 90% | 50,749 psi | 86% | 2923 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,620 psi | 90% | 2927 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 84% | 50,894 psi | 87% | 2808 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 52,881 psi | 90% | 2907 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 51,982 psi | 88% | 2900 fps | 98.3% |
| Vihtavuori N550 | <<locked>> | 88% | 52,156 psi | 89% | 2913 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 94% | 50,169 psi | 85% | 2930 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,533 psi | 89% | 2874 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 51,068 psi | 87% | 2927 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,444 psi | 86% | 3081 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,431 psi | 89% | 2917 fps | 97.8% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 33,518 psi | 57% | 2533 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 39,653 psi | 68% | 2694 fps | 98.7% |
| Accurate High Country | <<locked>> | 92% | 48,182 psi | 82% | 2956 fps | 96% |
| ADI AR 2208 | <<locked>> | 80% | 48,428 psi | 82% | 2802 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 43,627 psi | 74% | 2792 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 94% | 47,659 psi | 81% | 2897 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,153 psi | 84% | 2825 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,334 psi | 65% | 2703 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,859 psi | 75% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 43,323 psi | 74% | 2785 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 90% | 41,191 psi | 70% | 2779 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,355 psi | 48% | 2454 fps | 96.8% |
| Alliant Reloder-25 | <<locked>> | 88% | 32,068 psi | 55% | 2572 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 80% | 30,371 psi | 52% | 2566 fps | 95.1% |
| Bofors RP15 | <<locked>> | 94% | 43,279 psi | 74% | 2825 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 49,530 psi | 84% | 2838 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 41,191 psi | 70% | 2779 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 43,308 psi | 74% | 2707 fps | 96.8% |
| Hodgdon H1000 | <<locked>> | 98% | 43,816 psi | 75% | 2812 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 41,698 psi | 71% | 2746 fps | 96.9% |
| Hodgdon H4350 | <<locked>> | 80% | 44,338 psi | 75% | 2762 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,056 psi | 61% | 2595 fps | 99.2% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,553 psi | 69% | 2841 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 40,524 psi | 69% | 2753 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 47% | 1654 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,928 psi | 66% | 2631 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,802 psi | 76% | 2740 fps | 97.6% |
| IMR 4831 | <<locked>> | 80% | 38,087 psi | 65% | 2644 fps | 98.4% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,443 psi | 84% | 2841 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 96% | 48,559 psi | 83% | 2933 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 42,424 psi | 72% | 2690 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 40,698 psi | 69% | 2671 fps | 96.9% |
| Lovex S071 | <<locked>> | 90% | 34,867 psi | 59% | 2566 fps | 95.8% |
| Norma 204 | <<locked>> | 84% | 44,208 psi | 75% | 2782 fps | 95.7% |
| Norma MRP | <<locked>> | 86% | 37,579 psi | 64% | 2726 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 39,436 psi | 67% | 2690 fps | 98.6% |
| Ramshot Grand | <<locked>> | 94% | 45,368 psi | 77% | 2877 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 38,174 psi | 65% | 2674 fps | 96.8% |
| Ramshot Magnum | <<locked>> | 94% | 40,408 psi | 69% | 2749 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,978 psi | 48% | 1693 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,705 psi | 85% | 2835 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,557 psi | 79% | 2887 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,479 psi | 67% | 2710 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,218 psi | 65% | 2720 fps | 97.9% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,420 psi | 64% | 2753 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 46,804 psi | 80% | 2785 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 48,153 psi | 82% | 2828 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 88% | 42,554 psi | 72% | 2769 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 43,308 psi | 74% | 2707 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,424 psi | 72% | 2690 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 80% | 40,698 psi | 69% | 2671 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,863 psi | 81% | 2838 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,587 psi | 81% | 2684 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,524 psi | 71% | 2631 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 42,177 psi | 72% | 2762 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 46,949 psi | 80% | 2782 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 49,588 psi | 84% | 2822 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 35,781 psi | 61% | 2641 fps | 99.8% |
| Somchem S385 | <<locked>> | 84% | 37,971 psi | 65% | 2638 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 44,889 psi | 76% | 2710 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,654 psi | 69% | 2687 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 39,871 psi | 68% | 2671 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 40,176 psi | 68% | 2687 fps | 98.6% |
| Vihtavuori N555 | <<locked>> | 80% | 31,473 psi | 54% | 2530 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,914 psi | 68% | 2654 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 41,698 psi | 71% | 2746 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,034 psi | 43% | 2418 fps | 95.4% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,641 psi | 73% | 2733 fps | 95.4% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 80 powders for 7 x 61 S&H (Super) loaded with the .284 | 145gr | Speer Grand Slam. Winchester StaBALL HD delivers the highest muzzle velocity at 3,081 fps; across all powders the maximum-charge window runs from 1,850 fps to 3,081 fps. ADI AR 2217 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (405 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 145.0 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. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 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.