Load Specifications
Load data in caliber 7 x 57 with .284 | 170gr | Geco SOFTPOINT bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Hodgdon Superformance.
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: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 49,240 psi | 87% | 2438 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 51,024 psi | 90% | 2490 fps | 97.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,456 psi | 82% | 2513 fps | 98.5% |
| Accurate 4064 | <<locked>> | 84% | 49,603 psi | 88% | 2487 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 49,226 psi | 87% | 2569 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 86% | 50,488 psi | 89% | 2513 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 50,517 psi | 89% | 2598 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 48,486 psi | 86% | 2612 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 50,531 psi | 89% | 2533 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 50,865 psi | 90% | 2549 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 50,227 psi | 89% | 2618 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 51,184 psi | 90% | 2648 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 49,748 psi | 88% | 2592 fps | 96.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 46,412 psi | 82% | 2582 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,888 psi | 78% | 2536 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,479 psi | 68% | 2451 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,574 psi | 88% | 2703 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 50,995 psi | 90% | 2546 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 46,412 psi | 82% | 2582 fps | 96.2% |
| Bofors RP7 | <<locked>> | 90% | 50,937 psi | 90% | 2526 fps | 97.9% |
| Hodgdon H380 | <<locked>> | 84% | 48,254 psi | 85% | 2507 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 90% | 48,196 psi | 85% | 2562 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 88% | 48,805 psi | 86% | 2526 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 50,256 psi | 89% | 2556 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 49,356 psi | 87% | 2549 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 47,950 psi | 85% | 2589 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 64% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 50,807 psi | 90% | 2516 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 49,922 psi | 88% | 2497 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 49,313 psi | 87% | 2474 fps | 98.1% |
| IMR 4350 | <<locked>> | 92% | 48,298 psi | 85% | 2507 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 49,545 psi | 88% | 2507 fps | 98.1% |
| IMR 4831 | <<locked>> | 94% | 49,922 psi | 88% | 2566 fps | 99.8% |
| IMR 4895 | <<locked>> | 82% | 48,965 psi | 87% | 2530 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 50,009 psi | 88% | 2493 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 49,400 psi | 87% | 2503 fps | 99.1% |
| Lovex S070 | <<locked>> | 92% | 50,256 psi | 89% | 2539 fps | 98.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,754 psi | 69% | 2379 fps | 96.8% |
| Norma 203B | <<locked>> | 84% | 50,169 psi | 89% | 2539 fps | 100% |
| Norma 204 | <<locked>> | 92% | 48,385 psi | 86% | 2546 fps | 96.2% |
| Norma MRPᴾ | <<locked>> | 100% | 49,110 psi | 87% | 2661 fps | 98.2% |
| Norma URP | <<locked>> | 92% | 48,559 psi | 86% | 2559 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 84% | 50,459 psi | 89% | 2562 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 50,270 psi | 89% | 2602 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,477 psi | 64% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 48,472 psi | 86% | 2493 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 50,705 psi | 90% | 2641 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 48,791 psi | 86% | 2589 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 47,848 psi | 85% | 2608 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 82% | 48,791 psi | 86% | 2457 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 51,169 psi | 90% | 2543 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 48,544 psi | 86% | 2572 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 90% | 50,937 psi | 90% | 2526 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 90% | 49,400 psi | 87% | 2503 fps | 99.1% |
| Shooters World Precision | <<locked>> | 84% | 50,009 psi | 88% | 2493 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 50,256 psi | 89% | 2539 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 49,023 psi | 87% | 2546 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 50,952 psi | 90% | 2530 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 49,864 psi | 88% | 2408 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 48,849 psi | 86% | 2454 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 48,080 psi | 85% | 2569 fps | 96.6% |
| Somchem S355 | <<locked>> | 86% | 48,312 psi | 85% | 2493 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 49,908 psi | 88% | 2608 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 49,255 psi | 87% | 2552 fps | 97.6% |
| Vihtavuori N135 | <<locked>> | 82% | 48,950 psi | 87% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 49,284 psi | 87% | 2444 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 49,385 psi | 87% | 2477 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 50,633 psi | 90% | 2556 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,368 psi | 80% | 2480 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 84% | 50,401 psi | 89% | 2480 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 49,690 psi | 88% | 2559 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,805 psi | 86% | 2605 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 50,111 psi | 89% | 2530 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 48,530 psi | 86% | 2566 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,262 psi | 69% | 2566 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 50,792 psi | 90% | 2536 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,501 psi | 88% | 2549 fps | 96.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 46,166 psi | 82% | 2395 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,846 psi | 79% | 2388 fps | 96.4% |
| Accurate 3100 | <<locked>> | 92% | 35,549 psi | 63% | 2313 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 43,685 psi | 77% | 2398 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,576 psi | 58% | 2260 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 80% | 41,843 psi | 74% | 2372 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 44,469 psi | 79% | 2493 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,194 psi | 80% | 2552 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,829 psi | 74% | 2392 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,875 psi | 79% | 2454 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,474 psi | 57% | 2267 fps | 96.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,419 psi | 64% | 2385 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,918 psi | 78% | 2487 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 43,526 psi | 77% | 2530 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,774 psi | 47% | 2146 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,084 psi | 60% | 2346 fps | 95.4% |
| Alliant Reloder-26 | 47.8 gr | 88% | 32,561 psi | 58% | 2356 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 41,756 psi | 74% | 2398 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 43,526 psi | 77% | 2530 fps | 95.4% |
| Bofors RP7 | <<locked>> | 82% | 39,697 psi | 70% | 2329 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 42,511 psi | 75% | 2408 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 82% | 37,130 psi | 66% | 2356 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 84% | 43,091 psi | 76% | 2428 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,081 psi | 53% | 2178 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,021 psi | 81% | 2497 fps | 100% |
| Hodgdon Superformance | 47 gr | 84% | 38,740 psi | 68% | 2415 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,847 psi | 47% | 1401 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,732 psi | 84% | 2470 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,990 psi | 78% | 2402 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,383 psi | 82% | 2425 fps | 97.5% |
| IMR 4350 | <<locked>> | 86% | 40,118 psi | 71% | 2362 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,754 psi | 69% | 2310 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 31,531 psi | 56% | 2221 fps | 96.2% |
| IMR 4895 | <<locked>> | 80% | 45,992 psi | 81% | 2480 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 44,135 psi | 78% | 2402 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,289 psi | 64% | 2267 fps | 96.3% |
| Lovex S070 | <<locked>> | 82% | 36,854 psi | 65% | 2297 fps | 95.2% |
| Lovex S071 | <<locked>> | 96% | 33,924 psi | 60% | 2280 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 44,237 psi | 78% | 2444 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 45,136 psi | 80% | 2490 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 40,045 psi | 71% | 2490 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 32,866 psi | 58% | 2260 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 80% | 43,976 psi | 78% | 2461 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 36,289 psi | 64% | 2346 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,383 psi | 48% | 1437 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,598 psi | 75% | 2392 fps | 97.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,740 psi | 68% | 2441 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,155 psi | 57% | 2270 fps | 96% |
| ReloadSwiss RS 70 | 44.1 gr | 82% | 34,171 psi | 60% | 2329 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 46,108 psi | 82% | 2418 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,523 psi | 70% | 2356 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 94% | 42,612 psi | 75% | 2470 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 82% | 39,697 psi | 70% | 2329 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,289 psi | 64% | 2267 fps | 96.3% |
| Shooters World Precision | <<locked>> | 80% | 44,135 psi | 78% | 2402 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 36,854 psi | 65% | 2297 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,292 psi | 71% | 2398 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,645 psi | 84% | 2480 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,365 psi | 73% | 2283 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,869 psi | 67% | 2264 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 42,206 psi | 75% | 2464 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 39,987 psi | 71% | 2352 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 29,457 psi | 52% | 2221 fps | 98.6% |
| Somchem S385 | <<locked>> | 92% | 40,683 psi | 72% | 2408 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 45,847 psi | 81% | 2385 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,311 psi | 82% | 2402 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,232 psi | 68% | 2297 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,113 psi | 60% | 2260 fps | 96.9% |
| Vihtavuori N165 | <<locked>> | 98% | 42,525 psi | 75% | 2431 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 44,541 psi | 79% | 2395 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,663 psi | 60% | 2264 fps | 96.5% |
| Vihtavuori N555 | <<locked>> | 84% | 28,993 psi | 51% | 2215 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,649 psi | 59% | 2241 fps | 98.7% |
| Winchester 760 | <<locked>> | 82% | 37,130 psi | 66% | 2356 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,774 psi | 47% | 2221 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,427 psi | 84% | 2484 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 45,963 psi | 81% | 2493 fps | 95.7% |
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 57 loaded with the .284 | 170gr | Geco SOFTPOINT. Alliant Reloder-26 delivers the highest muzzle velocity at 2,703 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,703 fps. Accurate 3100 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 (390 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.284" calls for a 1:13.0 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. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for 7 x 57 with the .284 | 170gr | Geco SOFTPOINT 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.