Load Specifications
Load data in caliber 7 x 61 S&H (Super) with .284 | 145gr | Speer Boat-Tail bullet and 69 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% | 50,212 psi | 85% | 2877 fps | 99.3% |
| Accurate 4350 | <<locked>> | 88% | 52,214 psi | 89% | 2930 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 51,198 psi | 87% | 3012 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 82% | 51,285 psi | 87% | 2851 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 52,881 psi | 90% | 2969 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 96% | 50,633 psi | 86% | 2959 fps | 96.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,069 psi | 89% | 2877 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 52,866 psi | 90% | 2986 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 50,241 psi | 86% | 2946 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,547 psi | 89% | 2959 fps | 97.9% |
| Alliant Reloder-22 | <<locked>> | 96% | 49,951 psi | 85% | 2956 fps | 97.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 50,908 psi | 87% | 2953 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,094 psi | 80% | 2936 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 94% | 50,372 psi | 86% | 3025 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,489 psi | 89% | 2999 fps | 97.9% |
| Bofors RP3 | <<locked>> | 82% | 52,823 psi | 90% | 2890 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 49,951 psi | 85% | 2956 fps | 97.6% |
| Bofors RP7 | <<locked>> | 86% | 52,185 psi | 89% | 2874 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 82% | 53,055 psi | 90% | 2907 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 86% | 50,604 psi | 86% | 2920 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 84% | 50,444 psi | 86% | 2881 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,156 psi | 90% | 2946 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 49,850 psi | 85% | 2858 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,021 psi | 78% | 2972 fps | 97.4% |
| Hodgdon Superformance | <<locked>> | 86% | 50,401 psi | 86% | 2946 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,622 psi | 62% | 1850 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 50,024 psi | 85% | 2854 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 84% | 50,633 psi | 86% | 2848 fps | 98.7% |
| IMR 4831 | <<locked>> | 90% | 52,620 psi | 90% | 2923 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,388 psi | 89% | 2897 fps | 96.1% |
| IMR 7828 SSC | <<locked>> | 98% | 51,924 psi | 88% | 2995 fps | 96.6% |
| Lovex S065 | <<locked>> | 86% | 50,734 psi | 86% | 2848 fps | 99.5% |
| Lovex S070 | <<locked>> | 88% | 52,040 psi | 89% | 2890 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,964 psi | 82% | 2838 fps | 99% |
| Norma 204 | <<locked>> | 88% | 50,488 psi | 86% | 2904 fps | 97.3% |
| Norma MRP | <<locked>> | 94% | 49,414 psi | 84% | 2979 fps | 98.7% |
| Norma URP | <<locked>> | 88% | 50,908 psi | 87% | 2910 fps | 99.9% |
| Ramshot Grand | <<locked>> | 98% | 52,214 psi | 89% | 3012 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 88% | 49,777 psi | 85% | 2910 fps | 99.2% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,285 psi | 86% | 2946 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,246 psi | 63% | 1890 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 52,852 psi | 90% | 2890 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 49,705 psi | 85% | 2940 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 51,982 psi | 88% | 2949 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 50,256 psi | 86% | 2972 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,253 psi | 79% | 2969 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 84% | 52,895 psi | 90% | 2887 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 51,314 psi | 87% | 2884 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 94% | 51,764 psi | 88% | 2943 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 86% | 52,185 psi | 89% | 2874 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 50,734 psi | 86% | 2848 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 52,040 psi | 89% | 2890 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 50,966 psi | 87% | 2894 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 50,502 psi | 86% | 2726 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 50,111 psi | 85% | 2795 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 51,314 psi | 87% | 2940 fps | 97.8% |
| Somchem S355 | <<locked>> | 84% | 52,881 psi | 90% | 2884 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,765 psi | 90% | 2877 fps | 96% |
| Somchem S365 | <<locked>> | 90% | 50,531 psi | 86% | 2920 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,460 psi | 89% | 2923 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 84% | 50,676 psi | 86% | 2805 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 52,953 psi | 90% | 2910 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 51,779 psi | 88% | 2897 fps | 98.2% |
| Vihtavuori N550 | <<locked>> | 88% | 51,967 psi | 88% | 2910 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 94% | 49,980 psi | 85% | 2927 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,373 psi | 89% | 2874 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 50,865 psi | 87% | 2923 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,937 psi | 85% | 3074 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,301 psi | 89% | 2913 fps | 97.8% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 33,504 psi | 57% | 2533 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 39,668 psi | 68% | 2694 fps | 98.7% |
| Accurate High Country | <<locked>> | 92% | 47,747 psi | 81% | 2946 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 80% | 48,196 psi | 82% | 2799 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 43,453 psi | 74% | 2789 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 94% | 47,514 psi | 81% | 2897 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,936 psi | 83% | 2822 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,334 psi | 65% | 2703 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,642 psi | 74% | 2831 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 43,352 psi | 74% | 2785 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 90% | 41,031 psi | 70% | 2779 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,224 psi | 48% | 2451 fps | 96.7% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,952 psi | 54% | 2572 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 80% | 30,211 psi | 51% | 2559 fps | 95% |
| Bofors RP15 | <<locked>> | 94% | 43,120 psi | 73% | 2822 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 49,588 psi | 84% | 2838 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 41,031 psi | 70% | 2779 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 43,352 psi | 74% | 2707 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 80% | 49,603 psi | 84% | 2848 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 41,495 psi | 71% | 2743 fps | 96.9% |
| Hodgdon H4350 | <<locked>> | 80% | 44,382 psi | 76% | 2762 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,835 psi | 85% | 2887 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,868 psi | 61% | 2592 fps | 99.2% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,408 psi | 69% | 2835 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 40,364 psi | 69% | 2749 fps | 96.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,456 psi | 47% | 1654 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,943 psi | 66% | 2631 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,599 psi | 76% | 2736 fps | 97.5% |
| IMR 4831 | <<locked>> | 80% | 37,927 psi | 65% | 2644 fps | 98.4% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,298 psi | 84% | 2841 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 96% | 48,414 psi | 82% | 2930 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 42,250 psi | 72% | 2687 fps | 98.2% |
| Lovex S070 | <<locked>> | 80% | 40,538 psi | 69% | 2667 fps | 96.8% |
| Lovex S071 | <<locked>> | 90% | 34,737 psi | 59% | 2566 fps | 95.7% |
| Norma 204 | <<locked>> | 84% | 44,034 psi | 75% | 2779 fps | 95.6% |
| Norma MRP | <<locked>> | 86% | 37,405 psi | 64% | 2723 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 39,218 psi | 67% | 2684 fps | 98.5% |
| Ramshot Grand | <<locked>> | 94% | 45,223 psi | 77% | 2877 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 37,971 psi | 65% | 2671 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 94% | 40,248 psi | 69% | 2746 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,891 psi | 47% | 1693 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,501 psi | 84% | 2831 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,325 psi | 79% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,262 psi | 67% | 2707 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,043 psi | 65% | 2717 fps | 97.9% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,289 psi | 63% | 2753 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 46,601 psi | 79% | 2782 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,979 psi | 82% | 2825 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 88% | 42,424 psi | 72% | 2766 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 43,352 psi | 74% | 2707 fps | 96.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,250 psi | 72% | 2687 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 80% | 40,538 psi | 69% | 2667 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,645 psi | 81% | 2835 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,398 psi | 81% | 2680 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,350 psi | 70% | 2631 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 42,032 psi | 72% | 2759 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 46,731 psi | 80% | 2779 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 49,458 psi | 84% | 2818 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 35,752 psi | 61% | 2644 fps | 99.8% |
| Somchem S385 | <<locked>> | 84% | 37,782 psi | 64% | 2635 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 44,686 psi | 76% | 2707 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,669 psi | 69% | 2687 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 39,711 psi | 68% | 2667 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 39,972 psi | 68% | 2684 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 31,270 psi | 53% | 2526 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,740 psi | 68% | 2654 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 41,495 psi | 71% | 2743 fps | 96.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,918 psi | 42% | 2415 fps | 95.2% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,482 psi | 72% | 2733 fps | 95.4% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 81 powders for 7 x 61 S&H (Super) loaded with the .284 | 145gr | Speer Boat-Tail. Winchester StaBALL HD delivers the highest muzzle velocity at 3,074 fps; across all powders the maximum-charge window runs from 1,850 fps to 3,074 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 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 1:12.0 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.