Load Specifications
Load data in caliber 7 x 61 S&H (Super) with .284 | 155gr | TWENTY-NINE ERTP bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 and Alliant Reloder-16.
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>> | 98% | 51,053 psi | 87% | 2789 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 52,794 psi | 90% | 2733 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 49,850 psi | 85% | 2785 fps | 99.9% |
| Accurate High Country | <<locked>> | 96% | 52,286 psi | 89% | 2927 fps | 97.2% |
| Accurate MAGPRO | <<locked>> | 98% | 52,968 psi | 90% | 2920 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 84% | 52,779 psi | 90% | 2766 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 50,633 psi | 86% | 2822 fps | 97.6% |
| ADI AR 2213 | <<locked>> | 98% | 51,909 psi | 88% | 2871 fps | 96.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 50,995 psi | 87% | 2825 fps | 97.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 50,995 psi | 87% | 2825 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 50,386 psi | 86% | 2740 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 50,821 psi | 87% | 2844 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 51,430 psi | 88% | 2861 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 50,343 psi | 86% | 2815 fps | 97.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 50,937 psi | 87% | 2871 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,343 psi | 87% | 2858 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,643 psi | 76% | 2785 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 51,140 psi | 87% | 2936 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,893 psi | 85% | 2851 fps | 97.6% |
| Bofors RP3 | <<locked>> | 82% | 50,749 psi | 86% | 2749 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 50,937 psi | 87% | 2871 fps | 97.9% |
| Bofors RP7 | <<locked>> | 86% | 50,560 psi | 86% | 2736 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 82% | 51,227 psi | 87% | 2766 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 51,909 psi | 88% | 2835 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 86% | 51,706 psi | 88% | 2792 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 96% | 51,953 psi | 88% | 2818 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 50,995 psi | 87% | 2769 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,816 psi | 75% | 2818 fps | 96.9% |
| Hodgdon Superformance | <<locked>> | 88% | 51,750 psi | 88% | 2867 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,390 psi | 62% | 1749 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 52,214 psi | 89% | 2746 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 51,314 psi | 87% | 2769 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 51,996 psi | 89% | 2762 fps | 99% |
| IMR 4831 | <<locked>> | 90% | 50,314 psi | 86% | 2779 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,357 psi | 86% | 2753 fps | 95.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,794 psi | 90% | 2900 fps | 97% |
| Lovex S062 | <<locked>> | 82% | 52,446 psi | 89% | 2740 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,156 psi | 89% | 2762 fps | 99.7% |
| Lovex S070 | <<locked>> | 88% | 50,140 psi | 85% | 2749 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,527 psi | 78% | 2694 fps | 98.8% |
| Norma 203B | <<locked>> | 82% | 53,098 psi | 90% | 2792 fps | 100% |
| Norma 204 | <<locked>> | 90% | 51,721 psi | 88% | 2815 fps | 97.7% |
| Norma MRP | <<locked>> | 96% | 50,459 psi | 86% | 2894 fps | 99% |
| Norma URP | <<locked>> | 90% | 52,112 psi | 89% | 2822 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 49,501 psi | 84% | 2854 fps | 96.5% |
| Ramshot Hunter | <<locked>> | 90% | 50,850 psi | 87% | 2822 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,587 psi | 81% | 2795 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,072 psi | 63% | 1791 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 51,053 psi | 87% | 2749 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 50,937 psi | 87% | 2851 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 52,924 psi | 90% | 2858 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 51,488 psi | 88% | 2884 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,584 psi | 74% | 2808 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 84% | 50,865 psi | 87% | 2746 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 52,330 psi | 89% | 2792 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 96% | 52,663 psi | 90% | 2851 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 86% | 50,560 psi | 86% | 2736 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,156 psi | 89% | 2762 fps | 99.7% |
| Shooters World Precision | <<locked>> | 82% | 52,446 psi | 89% | 2740 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 50,140 psi | 85% | 2749 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 52,373 psi | 89% | 2805 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,054 psi | 89% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 51,692 psi | 88% | 2713 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 52,199 psi | 89% | 2848 fps | 98.1% |
| Somchem S355 | <<locked>> | 84% | 51,126 psi | 87% | 2746 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 51,271 psi | 87% | 2825 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 50,082 psi | 85% | 2779 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 86% | 52,286 psi | 89% | 2723 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 50,778 psi | 86% | 2766 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,837 psi | 90% | 2808 fps | 98.5% |
| Vihtavuori N550 | <<locked>> | 88% | 49,806 psi | 85% | 2769 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 96% | 50,444 psi | 86% | 2831 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 50,807 psi | 86% | 2881 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 50,038 psi | 85% | 2733 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 51,909 psi | 88% | 2835 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,601 psi | 79% | 2923 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 49,719 psi | 85% | 2762 fps | 97.4% |
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>> | 86% | 33,997 psi | 58% | 2457 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 49,617 psi | 84% | 2687 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,739 psi | 64% | 2559 fps | 98.5% |
| Accurate High Country | <<locked>> | 92% | 45,397 psi | 77% | 2802 fps | 95.5% |
| Accurate MAGPRO | <<locked>> | 96% | 49,327 psi | 84% | 2858 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 46,659 psi | 79% | 2664 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 41,843 psi | 71% | 2651 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 96% | 48,428 psi | 82% | 2808 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 41,974 psi | 71% | 2654 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 41,974 psi | 71% | 2654 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,108 psi | 80% | 2687 fps | 100% |
| Alliant Reloder-16 | 48 gr | 80% | 36,898 psi | 63% | 2569 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,829 psi | 71% | 2694 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,510 psi | 71% | 2644 fps | 95.4% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,568 psi | 71% | 2694 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,064 psi | 46% | 2329 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,590 psi | 55% | 2500 fps | 95.7% |
| Alliant Reloder-26 | 54.3 gr | 82% | 30,937 psi | 53% | 2497 fps | 95.9% |
| Bofors RP15 | <<locked>> | 94% | 41,017 psi | 70% | 2677 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 47,616 psi | 81% | 2700 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 41,568 psi | 71% | 2694 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 41,756 psi | 71% | 2572 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 47,863 psi | 81% | 2710 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 39,697 psi | 68% | 2605 fps | 96.6% |
| Hodgdon H4350 | <<locked>> | 80% | 42,699 psi | 73% | 2625 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 94% | 48,660 psi | 83% | 2759 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,301 psi | 58% | 2461 fps | 99.1% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,147 psi | 70% | 2756 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 38,667 psi | 66% | 2615 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 46% | 1565 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,081 psi | 84% | 2697 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,536 psi | 64% | 2503 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,323 psi | 74% | 2605 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 36,318 psi | 62% | 2513 fps | 98.2% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,355 psi | 81% | 2700 fps | 95% |
| IMR 7828 SSC | <<locked>> | 96% | 46,180 psi | 79% | 2779 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 49,327 psi | 84% | 2690 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,828 psi | 70% | 2556 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 39,001 psi | 66% | 2536 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 33,069 psi | 56% | 2438 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 49,632 psi | 84% | 2740 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,264 psi | 72% | 2641 fps | 95.4% |
| Norma MRP | 56.5 gr | 88% | 38,145 psi | 65% | 2648 fps | 96% |
| Norma URP | <<locked>> | 80% | 37,579 psi | 64% | 2552 fps | 98.4% |
| Ramshot Grand | <<locked>> | 96% | 46,021 psi | 78% | 2789 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 36,332 psi | 62% | 2536 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 94% | 38,305 psi | 65% | 2605 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 47% | 1601 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,805 psi | 81% | 2694 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,469 psi | 76% | 2746 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,550 psi | 64% | 2575 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,521 psi | 62% | 2582 fps | 97.6% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,985 psi | 65% | 2677 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 44,773 psi | 76% | 2644 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,137 psi | 79% | 2687 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 88% | 40,611 psi | 69% | 2628 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 41,756 psi | 71% | 2572 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,828 psi | 70% | 2556 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 49,327 psi | 84% | 2690 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,001 psi | 66% | 2536 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,774 psi | 78% | 2697 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,093 psi | 78% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,001 psi | 68% | 2503 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,234 psi | 68% | 2625 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 45,136 psi | 77% | 2644 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 34,098 psi | 58% | 2513 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 38,522 psi | 66% | 2556 fps | 95.6% |
| Vihtavuori N150 | <<locked>> | 80% | 43,033 psi | 73% | 2575 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,899 psi | 66% | 2549 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 40,422 psi | 69% | 2589 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 38,435 psi | 65% | 2552 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 29,849 psi | 51% | 2405 fps | 96.6% |
| Vihtavuori N560 | <<locked>> | 94% | 47,456 psi | 81% | 2822 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,116 psi | 65% | 2523 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 39,900 psi | 68% | 2608 fps | 96.7% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,469 psi | 43% | 2356 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,611 psi | 69% | 2595 fps | 95% |
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 77 powders for 7 x 61 S&H (Super) loaded with the .284 | 155gr | TWENTY-NINE ERTP. Alliant Reloder-26 delivers the highest muzzle velocity at 2,936 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,936 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 77 of the 77 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 155.0 gr projectile in 0.284" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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. Norma MRP, Alliant Reloder-26, Alliant Reloder-16 rank at the top here: for 7 x 61 S&H (Super) with the .284 | 155gr | TWENTY-NINE ERTP 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.