Load Specifications
Load data in caliber 7 x 61 S&H (Super) with .284 | 158gr | Prvi Partizan Grom bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country and Ramshot Grand.
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% | 52,257 psi | 89% | 2792 fps | 99.8% |
| Accurate 4350 | <<locked>> | 86% | 50,502 psi | 86% | 2782 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 49,806 psi | 85% | 2871 fps | 97.2% |
| Accurate MAGPRO | <<locked>> | 94% | 50,430 psi | 86% | 2867 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 82% | 52,707 psi | 90% | 2753 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 51,140 psi | 87% | 2825 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 96% | 52,286 psi | 89% | 2874 fps | 97.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,682 psi | 66% | 2657 fps | 97.1% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 51,605 psi | 88% | 2825 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 88% | 51,416 psi | 88% | 2838 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,083 psi | 89% | 2851 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 50,966 psi | 87% | 2815 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 51,793 psi | 88% | 2874 fps | 98.5% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,779 psi | 90% | 2858 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,660 psi | 83% | 2851 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 52,504 psi | 89% | 2940 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 51,024 psi | 87% | 2858 fps | 98.3% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,643 psi | 76% | 2776 fps | 96.3% |
| Bofors RP5 | <<locked>> | 96% | 51,793 psi | 88% | 2874 fps | 98.5% |
| Bofors RP7 | <<locked>> | 84% | 50,372 psi | 86% | 2726 fps | 98.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,124 psi | 82% | 2795 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 86% | 52,272 psi | 89% | 2828 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 84% | 51,793 psi | 88% | 2785 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 94% | 52,431 psi | 89% | 2818 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 51,358 psi | 87% | 2802 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 51,532 psi | 88% | 2762 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,630 psi | 81% | 2897 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 86% | 52,127 psi | 89% | 2861 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,695 psi | 62% | 1762 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 51,488 psi | 88% | 2766 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 84% | 51,953 psi | 88% | 2756 fps | 99.3% |
| IMR 4831 | <<locked>> | 88% | 51,039 psi | 87% | 2776 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 50,647 psi | 86% | 2756 fps | 96.5% |
| IMR 7828 SSC | <<locked>> | 96% | 50,024 psi | 85% | 2848 fps | 97% |
| Lovex S065 | <<locked>> | 86% | 52,199 psi | 89% | 2753 fps | 99.9% |
| Lovex S070 | <<locked>> | 86% | 50,299 psi | 86% | 2743 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,603 psi | 84% | 2753 fps | 99.6% |
| Norma 204 | <<locked>> | 88% | 51,996 psi | 89% | 2812 fps | 98.2% |
| Norma MRP | <<locked>> | 94% | 51,387 psi | 87% | 2894 fps | 99.4% |
| Norma URP | <<locked>> | 88% | 52,547 psi | 89% | 2815 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 50,241 psi | 86% | 2864 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 88% | 51,358 psi | 87% | 2818 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,170 psi | 89% | 2867 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,391 psi | 64% | 1801 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 51,692 psi | 88% | 2844 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 50,169 psi | 85% | 2799 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,083 psi | 89% | 2881 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,805 psi | 81% | 2894 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 82% | 51,329 psi | 87% | 2740 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,779 psi | 90% | 2795 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 92% | 50,125 psi | 85% | 2799 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 84% | 50,372 psi | 86% | 2726 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 52,199 psi | 89% | 2753 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 50,299 psi | 86% | 2743 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 52,649 psi | 90% | 2795 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 51,996 psi | 89% | 2628 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 51,648 psi | 88% | 2707 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,098 psi | 90% | 2854 fps | 98.7% |
| Somchem S355 | <<locked>> | 82% | 51,271 psi | 87% | 2736 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 50,879 psi | 87% | 2736 fps | 96.3% |
| Somchem S365 | <<locked>> | 90% | 52,257 psi | 89% | 2822 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 50,763 psi | 86% | 2779 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 84% | 52,417 psi | 89% | 2710 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 51,213 psi | 87% | 2762 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 50,212 psi | 85% | 2759 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 86% | 50,386 psi | 86% | 2766 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 51,837 psi | 88% | 2835 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 51,561 psi | 88% | 2887 fps | 96.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,821 psi | 87% | 2861 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 50,328 psi | 86% | 2723 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 52,533 psi | 89% | 2835 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,605 psi | 90% | 2986 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 50,575 psi | 86% | 2772 fps | 98.1% |
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>> | 82% | 32,576 psi | 55% | 2411 fps | 95.8% |
| Accurate 4350 | <<locked>> | 80% | 41,176 psi | 70% | 2615 fps | 99.4% |
| Accurate High Country | 59.7 gr | 88% | 43,134 psi | 73% | 2743 fps | 95.4% |
| Accurate MAGPRO | <<locked>> | 92% | 46,949 psi | 80% | 2802 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 49,458 psi | 84% | 2700 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,508 psi | 67% | 2595 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 92% | 45,818 psi | 78% | 2753 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 98% | 36,303 psi | 62% | 2598 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,769 psi | 68% | 2598 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,610 psi | 67% | 2621 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,281 psi | 77% | 2740 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,363 psi | 67% | 2592 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,726 psi | 68% | 2641 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,225 psi | 50% | 2385 fps | 98.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,154 psi | 53% | 2454 fps | 95.7% |
| Alliant Reloder-26 | 56 gr | 80% | 31,517 psi | 54% | 2503 fps | 96.8% |
| Bofors RP15 | <<locked>> | 90% | 39,247 psi | 67% | 2628 fps | 95.2% |
| Bofors RP30 | <<locked>> | 98% | 41,800 psi | 71% | 2717 fps | 95.4% |
| Bofors RP5 | <<locked>> | 88% | 39,726 psi | 68% | 2641 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 44,556 psi | 76% | 2621 fps | 97.8% |
| Hodgdon H1000 | <<locked>> | 96% | 42,119 psi | 72% | 2674 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 42,815 psi | 73% | 2657 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 45,585 psi | 78% | 2674 fps | 97.4% |
| Hodgdon H4831 | <<locked>> | 90% | 45,905 psi | 78% | 2703 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,095 psi | 82% | 2746 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,333 psi | 64% | 2513 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,247 psi | 67% | 2707 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 41,800 psi | 71% | 2674 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 47% | 1572 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,147 psi | 68% | 2552 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,847 psi | 78% | 2648 fps | 98.4% |
| IMR 4831 | <<locked>> | 80% | 39,291 psi | 67% | 2562 fps | 99.2% |
| IMR 4955 Enduron | <<locked>> | 90% | 47,587 psi | 81% | 2700 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 92% | 43,816 psi | 75% | 2726 fps | 95.2% |
| Lovex S065 | <<locked>> | 80% | 43,439 psi | 74% | 2598 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 41,800 psi | 71% | 2585 fps | 97.9% |
| Lovex S071 | <<locked>> | 86% | 31,749 psi | 54% | 2388 fps | 95.4% |
| Norma 204 | <<locked>> | 80% | 39,610 psi | 67% | 2579 fps | 95.1% |
| Norma MRP | <<locked>> | 84% | 36,230 psi | 62% | 2589 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 40,582 psi | 69% | 2605 fps | 99.3% |
| Ramshot Grand | 61.9 gr | 92% | 43,569 psi | 74% | 2736 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 39,291 psi | 67% | 2592 fps | 97.8% |
| Ramshot Magnum | <<locked>> | 90% | 36,187 psi | 62% | 2552 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,108 psi | 48% | 1614 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,037 psi | 82% | 2789 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,770 psi | 69% | 2628 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,233 psi | 67% | 2638 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,027 psi | 61% | 2625 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 48,095 psi | 82% | 2690 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,700 psi | 74% | 2631 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 84% | 38,377 psi | 65% | 2572 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 44,556 psi | 76% | 2621 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,439 psi | 74% | 2598 fps | 99% |
| Shooters World SW4350 | <<locked>> | 80% | 41,800 psi | 71% | 2585 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,124 psi | 84% | 2740 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,747 psi | 83% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,598 psi | 73% | 2549 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,029 psi | 65% | 2566 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 48,109 psi | 82% | 2684 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,616 psi | 81% | 2677 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 37,260 psi | 63% | 2562 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,550 psi | 62% | 2500 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 46,050 psi | 78% | 2615 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,105 psi | 72% | 2602 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 88% | 38,595 psi | 66% | 2539 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 41,466 psi | 71% | 2605 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 32,590 psi | 55% | 2457 fps | 98% |
| Vihtavuori N560 | <<locked>> | 90% | 45,005 psi | 77% | 2762 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 96% | 44,498 psi | 76% | 2743 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,930 psi | 70% | 2566 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,047 psi | 73% | 2664 fps | 98% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,831 psi | 44% | 2365 fps | 97.4% |
| Winchester Supreme 780 | <<locked>> | 88% | 41,089 psi | 70% | 2598 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 73 powders for 7 x 61 S&H (Super) loaded with the .284 | 158gr | Prvi Partizan Grom. Winchester StaBALL HD delivers the highest muzzle velocity at 2,986 fps; across all powders the maximum-charge window runs from 1,762 fps to 2,986 fps. ADI AR 2225 gives the best case fill at 100 %, and 73 of the 73 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 158.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP30 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, Accurate High Country, Ramshot Grand rank at the top here: for 7 x 61 S&H (Super) with the .284 | 158gr | Prvi Partizan Grom 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.