Load Specifications
Load data in caliber 7 x 61 S&H (Super) with .284 | 150gr | Osprey Virtus bullet and 79 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 Norma MRP.
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 2700 | <<locked>> | 82% | 51,996 psi | 89% | 2776 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,055 psi | 90% | 2871 fps | 99.6% |
| Accurate 4064 | <<locked>> | 82% | 50,807 psi | 86% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 51,590 psi | 88% | 2864 fps | 100% |
| Accurate High Country | <<locked>> | 96% | 50,691 psi | 86% | 2949 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 51,721 psi | 88% | 2799 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,113 psi | 90% | 2917 fps | 97.9% |
| ADI AR 2213 | <<locked>> | 98% | 50,604 psi | 86% | 2900 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,084 psi | 90% | 2910 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 52,301 psi | 89% | 2822 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 52,475 psi | 89% | 2844 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 52,939 psi | 90% | 2933 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 50,053 psi | 85% | 2894 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 52,373 psi | 89% | 2900 fps | 97.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,040 psi | 90% | 2959 fps | 98.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,908 psi | 85% | 2887 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,511 psi | 74% | 2812 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 96% | 49,603 psi | 84% | 2963 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,472 psi | 83% | 2874 fps | 97.1% |
| Bofors RP3 | <<locked>> | 84% | 52,736 psi | 90% | 2835 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,040 psi | 90% | 2959 fps | 98.1% |
| Bofors RP7 | <<locked>> | 88% | 52,373 psi | 89% | 2822 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 82% | 49,806 psi | 85% | 2795 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 88% | 50,604 psi | 86% | 2864 fps | 98.8% |
| Hodgdon H4350 | <<locked>> | 86% | 50,662 psi | 86% | 2828 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,040 psi | 90% | 2854 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 50,444 psi | 86% | 2897 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,187 psi | 62% | 1788 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 51,169 psi | 87% | 2785 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 50,169 psi | 85% | 2802 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 50,821 psi | 87% | 2795 fps | 98.6% |
| IMR 4831 | <<locked>> | 92% | 52,330 psi | 89% | 2864 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 52,721 psi | 90% | 2844 fps | 96.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,663 psi | 88% | 2933 fps | 96.5% |
| Lovex S062 | <<locked>> | 82% | 51,213 psi | 87% | 2776 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 50,705 psi | 86% | 2792 fps | 99.5% |
| Lovex S070 | <<locked>> | 90% | 51,982 psi | 88% | 2835 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 43,932 psi | 75% | 2717 fps | 98.4% |
| Norma 203B | <<locked>> | 82% | 51,779 psi | 88% | 2828 fps | 100% |
| Norma 204 | <<locked>> | 90% | 50,647 psi | 86% | 2848 fps | 97.3% |
| Norma MRP | <<locked>> | 98% | 52,489 psi | 89% | 2979 fps | 99.1% |
| Norma URP | <<locked>> | 90% | 50,763 psi | 86% | 2854 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 82% | 52,257 psi | 89% | 2851 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,895 psi | 88% | 2946 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 92% | 53,156 psi | 90% | 2913 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,137 psi | 79% | 2815 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,796 psi | 63% | 1827 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 49,995 psi | 85% | 2782 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 49,647 psi | 85% | 2887 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 51,532 psi | 88% | 2890 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 50,256 psi | 86% | 2917 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,380 psi | 72% | 2828 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 82% | 52,895 psi | 90% | 2785 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 52,881 psi | 90% | 2831 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 51,300 psi | 87% | 2828 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 96% | 51,343 psi | 87% | 2881 fps | 97.8% |
| Rottweil R 907 | <<locked>> | 88% | 52,373 psi | 89% | 2822 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 50,705 psi | 86% | 2792 fps | 99.5% |
| Shooters World Precision | <<locked>> | 82% | 51,213 psi | 87% | 2776 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 51,982 psi | 88% | 2835 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 51,242 psi | 87% | 2841 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 51,024 psi | 87% | 2680 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 50,415 psi | 86% | 2746 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 50,894 psi | 87% | 2877 fps | 97.7% |
| Somchem S355 | <<locked>> | 86% | 52,939 psi | 90% | 2828 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 52,852 psi | 90% | 2822 fps | 95.9% |
| Somchem S365 | <<locked>> | 92% | 49,995 psi | 85% | 2861 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 52,185 psi | 89% | 2864 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 86% | 50,865 psi | 87% | 2756 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 52,779 psi | 90% | 2851 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,372 psi | 87% | 2835 fps | 98.1% |
| Vihtavuori N540 | <<locked>> | 82% | 51,880 psi | 88% | 2759 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 51,764 psi | 88% | 2851 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 52,257 psi | 89% | 2913 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,881 psi | 90% | 2969 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 52,330 psi | 89% | 2818 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 50,836 psi | 87% | 2871 fps | 98.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,150 psi | 77% | 2946 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 52,272 psi | 89% | 2858 fps | 97.7% |
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 2700 | <<locked>> | 80% | 48,675 psi | 83% | 2720 fps | 97.7% |
| Accurate 3100 | <<locked>> | 88% | 34,998 psi | 60% | 2530 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 47,732 psi | 81% | 2713 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,260 psi | 62% | 2572 fps | 97.9% |
| Accurate High Country | 61.8 gr | 94% | 47,210 psi | 80% | 2887 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 45,484 psi | 77% | 2694 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,424 psi | 74% | 2736 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 96% | 47,471 psi | 81% | 2838 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 43,497 psi | 74% | 2733 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 45,934 psi | 78% | 2720 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,081 psi | 84% | 2785 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,694 psi | 61% | 2592 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,524 psi | 69% | 2720 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 42,975 psi | 73% | 2726 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,279 psi | 74% | 2776 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 25,831 psi | 44% | 2333 fps | 95.3% |
| Alliant Reloder-25 | <<locked>> | 92% | 33,591 psi | 57% | 2575 fps | 95.8% |
| Alliant Reloder-26 | 56.9 gr | 84% | 31,778 psi | 54% | 2566 fps | 95.9% |
| Bofors RP15 | <<locked>> | 96% | 42,424 psi | 72% | 2759 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 46,180 psi | 79% | 2730 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,279 psi | 74% | 2776 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 40,654 psi | 69% | 2598 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 46,557 psi | 79% | 2740 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 80% | 38,450 psi | 65% | 2625 fps | 96% |
| Hodgdon H4350 | <<locked>> | 80% | 41,640 psi | 71% | 2654 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,185 psi | 56% | 2484 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 80% | 37,507 psi | 64% | 2635 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,064 psi | 46% | 1598 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 47,834 psi | 81% | 2730 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 38,856 psi | 66% | 2579 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,148 psi | 72% | 2631 fps | 96.9% |
| IMR 4831 | <<locked>> | 80% | 35,056 psi | 60% | 2533 fps | 97.7% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,356 psi | 84% | 2785 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 98% | 48,167 psi | 82% | 2867 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 47,892 psi | 82% | 2723 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,465 psi | 67% | 2579 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 37,782 psi | 64% | 2559 fps | 95.9% |
| Lovex S071 | <<locked>> | 92% | 33,649 psi | 57% | 2497 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 48,428 psi | 82% | 2772 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,092 psi | 75% | 2726 fps | 95.6% |
| Norma MRP | 57.9 gr | 88% | 36,970 psi | 63% | 2667 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 36,405 psi | 62% | 2575 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 48,863 psi | 83% | 2799 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 48,269 psi | 82% | 2881 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 35,317 psi | 60% | 2562 fps | 95.8% |
| Ramshot Magnum | <<locked>> | 96% | 39,668 psi | 68% | 2684 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,470 psi | 47% | 1634 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,557 psi | 79% | 2720 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,163 psi | 73% | 2776 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,114 psi | 61% | 2592 fps | 97.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,273 psi | 60% | 2602 fps | 96.9% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 39,523 psi | 67% | 2759 fps | 96.1% |
| Rottweil R 902 | <<locked>> | 80% | 49,734 psi | 85% | 2736 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,395 psi | 74% | 2674 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,182 psi | 82% | 2772 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 90% | 42,032 psi | 72% | 2710 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 40,654 psi | 69% | 2598 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,465 psi | 67% | 2579 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 47,892 psi | 82% | 2723 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,782 psi | 64% | 2559 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,773 psi | 76% | 2730 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,962 psi | 77% | 2589 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,609 psi | 66% | 2520 fps | 96% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,640 psi | 71% | 2703 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 43,685 psi | 74% | 2671 fps | 99.9% |
| Somchem S361 | <<locked>> | 92% | 49,472 psi | 84% | 2766 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 32,648 psi | 56% | 2526 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 39,914 psi | 68% | 2635 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 41,858 psi | 71% | 2605 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,710 psi | 64% | 2575 fps | 98.2% |
| Vihtavuori N165 | <<locked>> | 92% | 39,291 psi | 67% | 2612 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 48,573 psi | 83% | 2710 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,159 psi | 63% | 2575 fps | 97.8% |
| Vihtavuori N555 | <<locked>> | 80% | 28,326 psi | 48% | 2408 fps | 95.5% |
| Vihtavuori N560 | <<locked>> | 96% | 49,371 psi | 84% | 2907 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,883 psi | 63% | 2546 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 38,653 psi | 66% | 2631 fps | 96% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,020 psi | 44% | 2421 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,163 psi | 72% | 2677 fps | 95.2% |
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 79 powders for 7 x 61 S&H (Super) loaded with the .284 | 150gr | Osprey Virtus. Norma MRP delivers the highest muzzle velocity at 2,979 fps; across all powders the maximum-charge window runs from 1,788 fps to 2,979 fps. Accurate 3100 gives the best case fill at 100 %, and 79 of the 79 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 150.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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, Norma MRP rank at the top here: for 7 x 61 S&H (Super) with the .284 | 150gr | Osprey Virtus 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.