Load Specifications
Load data in caliber 7 x 61 S&H (Super) with .284 | 177gr | Peregrine Glider GRM bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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% | 49,966 psi | 85% | 2602 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 52,025 psi | 89% | 2641 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 51,213 psi | 87% | 2736 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 96% | 52,141 psi | 89% | 2740 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 51,387 psi | 87% | 2566 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,055 psi | 90% | 2690 fps | 99% |
| ADI AR 2213 | <<locked>> | 96% | 50,662 psi | 86% | 2687 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 37,086 psi | 63% | 2480 fps | 97.4% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 49,792 psi | 85% | 2635 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 52,054 psi | 89% | 2585 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 49,748 psi | 85% | 2644 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 50,372 psi | 86% | 2661 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,533 psi | 89% | 2680 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 96% | 49,980 psi | 85% | 2684 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 98% | 50,691 psi | 86% | 2664 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,746 psi | 80% | 2661 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 50,401 psi | 86% | 2746 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,344 psi | 89% | 2720 fps | 99% |
| Bofors RP3 | <<locked>> | 82% | 52,533 psi | 89% | 2595 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 42,728 psi | 73% | 2592 fps | 96.6% |
| Bofors RP5 | <<locked>> | 96% | 49,980 psi | 85% | 2684 fps | 98.8% |
| Bofors RP7 | <<locked>> | 86% | 52,098 psi | 89% | 2592 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 46,311 psi | 79% | 2608 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 53,113 psi | 90% | 2618 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 50,676 psi | 86% | 2641 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 84% | 50,386 psi | 86% | 2602 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 94% | 50,894 psi | 87% | 2635 fps | 97.1% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,734 psi | 85% | 2615 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 49,937 psi | 85% | 2575 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,905 psi | 78% | 2707 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 86% | 50,372 psi | 86% | 2671 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,608 psi | 62% | 1627 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 50,212 psi | 85% | 2582 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 50,662 psi | 86% | 2569 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 52,562 psi | 89% | 2635 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,489 psi | 89% | 2625 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 98% | 51,721 psi | 88% | 2717 fps | 98% |
| Lovex S065 | <<locked>> | 86% | 50,778 psi | 86% | 2569 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 51,938 psi | 88% | 2608 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,398 psi | 81% | 2562 fps | 99.7% |
| Norma 204 | <<locked>> | 88% | 50,604 psi | 86% | 2628 fps | 98.5% |
| Norma MRP | <<locked>> | 94% | 49,342 psi | 84% | 2703 fps | 99.5% |
| Norma URP | <<locked>> | 88% | 50,952 psi | 87% | 2628 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,127 psi | 89% | 2733 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 88% | 49,850 psi | 85% | 2631 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,893 psi | 85% | 2674 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,333 psi | 64% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,040 psi | 90% | 2608 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 49,937 psi | 85% | 2651 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 52,069 psi | 89% | 2667 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 50,473 psi | 86% | 2690 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,658 psi | 78% | 2700 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 84% | 53,040 psi | 90% | 2598 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 51,387 psi | 87% | 2615 fps | 97.9% |
| Rottweil R 905 | <<locked>> | 94% | 51,793 psi | 88% | 2667 fps | 99% |
| Rottweil R 907 | <<locked>> | 86% | 52,098 psi | 89% | 2592 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 50,778 psi | 86% | 2569 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 88% | 51,938 psi | 88% | 2608 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 51,082 psi | 87% | 2605 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 50,662 psi | 86% | 2444 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 50,067 psi | 85% | 2523 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 51,358 psi | 87% | 2664 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 52,852 psi | 90% | 2592 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,692 psi | 90% | 2605 fps | 97.4% |
| Somchem S365 | <<locked>> | 90% | 50,575 psi | 86% | 2631 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 52,214 psi | 89% | 2641 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 84% | 50,850 psi | 87% | 2526 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 52,997 psi | 90% | 2621 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 51,764 psi | 88% | 2625 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 88% | 51,967 psi | 88% | 2628 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,113 psi | 90% | 2690 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 49,676 psi | 85% | 2694 fps | 97.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,820 psi | 83% | 2671 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,228 psi | 89% | 2589 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 50,937 psi | 87% | 2644 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,082 psi | 85% | 2785 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,272 psi | 89% | 2638 fps | 98.9% |
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>> | 80% | 28,616 psi | 49% | 2182 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 39,218 psi | 67% | 2428 fps | 99.6% |
| Accurate High Country | <<locked>> | 88% | 41,379 psi | 70% | 2559 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 92% | 45,223 psi | 77% | 2621 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 48,428 psi | 82% | 2520 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 38,043 psi | 65% | 2418 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 90% | 41,365 psi | 70% | 2513 fps | 95.2% |
| ADI AR 2225 | <<locked>> | 96% | 32,547 psi | 55% | 2365 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 38,276 psi | 65% | 2421 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,023 psi | 83% | 2539 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,290 psi | 65% | 2444 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,816 psi | 75% | 2556 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 37,898 psi | 65% | 2415 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 86% | 35,534 psi | 60% | 2408 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,891 psi | 47% | 2218 fps | 98.3% |
| Alliant Reloder-25 | <<locked>> | 86% | 29,704 psi | 51% | 2283 fps | 96.1% |
| Alliant Reloder-26 | 50.8 gr | 80% | 29,892 psi | 51% | 2329 fps | 97.1% |
| Bofors RP15 | <<locked>> | 90% | 37,753 psi | 64% | 2454 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 49,414 psi | 84% | 2552 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 39,885 psi | 68% | 2533 fps | 95.7% |
| Bofors RP5 | <<locked>> | 86% | 35,534 psi | 60% | 2408 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 43,250 psi | 74% | 2444 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 96% | 40,350 psi | 69% | 2490 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 49,705 psi | 85% | 2569 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 41,452 psi | 71% | 2480 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 80% | 44,440 psi | 76% | 2500 fps | 97.8% |
| Hodgdon H4831 | <<locked>> | 90% | 44,425 psi | 76% | 2526 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 90% | 43,424 psi | 74% | 2507 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,839 psi | 61% | 2339 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 35,201 psi | 60% | 2467 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 40,350 psi | 69% | 2497 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 46% | 1453 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 38,885 psi | 66% | 2382 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,773 psi | 76% | 2470 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 37,710 psi | 64% | 2385 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 43,468 psi | 74% | 2470 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 92% | 42,409 psi | 72% | 2549 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 42,032 psi | 72% | 2421 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 40,234 psi | 68% | 2405 fps | 98.1% |
| Lovex S071 | <<locked>> | 86% | 30,023 psi | 51% | 2218 fps | 95.7% |
| Norma 204 | <<locked>> | 80% | 38,377 psi | 65% | 2408 fps | 95.6% |
| Norma MRP | 50.5 gr | 82% | 32,329 psi | 55% | 2359 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 39,073 psi | 67% | 2425 fps | 99.5% |
| Ramshot Grand | <<locked>> | 92% | 41,930 psi | 71% | 2552 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 38,000 psi | 65% | 2418 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 34,577 psi | 59% | 2379 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,789 psi | 47% | 1486 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,458 psi | 84% | 2552 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,601 psi | 79% | 2598 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,189 psi | 67% | 2451 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,869 psi | 64% | 2461 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 34,461 psi | 59% | 2451 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 46,311 psi | 79% | 2500 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 42,351 psi | 72% | 2457 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 84% | 36,912 psi | 63% | 2395 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 43,250 psi | 74% | 2444 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,032 psi | 72% | 2421 fps | 99.2% |
| Shooters World SW4350 | <<locked>> | 80% | 40,234 psi | 68% | 2405 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,848 psi | 81% | 2556 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,630 psi | 81% | 2405 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,017 psi | 70% | 2369 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 36,579 psi | 62% | 2392 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 46,586 psi | 79% | 2500 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 43,047 psi | 73% | 2448 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 35,679 psi | 61% | 2385 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 32,880 psi | 56% | 2280 fps | 95% |
| Vihtavuori N150 | <<locked>> | 80% | 44,498 psi | 76% | 2431 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,466 psi | 69% | 2421 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 34,606 psi | 59% | 2316 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 39,987 psi | 68% | 2428 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 30,980 psi | 53% | 2287 fps | 98.3% |
| Vihtavuori N560 | 55.5 gr | 90% | 43,424 psi | 74% | 2582 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 96% | 42,308 psi | 72% | 2556 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,508 psi | 67% | 2392 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 41,452 psi | 71% | 2480 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,569 psi | 42% | 2205 fps | 97.8% |
| Winchester Supreme 780 | <<locked>> | 86% | 36,680 psi | 62% | 2365 fps | 95.3% |
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 | 177gr | Peregrine Glider GRM. Winchester StaBALL HD delivers the highest muzzle velocity at 2,785 fps; across all powders the maximum-charge window runs from 1,627 fps to 2,785 fps. ADI AR 2225 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 177.0 gr projectile in 0.284" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 x 61 S&H (Super) with the .284 | 177gr | Peregrine Glider GRM 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.