Load Specifications
Load data in caliber 7 x 57 with .284 | 175gr | Nosler Partition bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70 and Alliant Reloder-17.
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>> | 84% | 50,807 psi | 90% | 2405 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 49,400 psi | 87% | 2408 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,440 psi | 79% | 2431 fps | 98.1% |
| Accurate 4064 | <<locked>> | 86% | 50,923 psi | 90% | 2451 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 50,314 psi | 89% | 2533 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 82% | 50,879 psi | 90% | 2474 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 48,863 psi | 86% | 2434 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 98% | 48,863 psi | 86% | 2513 fps | 96.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 50,314 psi | 89% | 2582 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 49,168 psi | 87% | 2457 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 49,472 psi | 87% | 2474 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 48,718 psi | 86% | 2539 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 49,052 psi | 87% | 2562 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 51,039 psi | 90% | 2556 fps | 97% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,250 psi | 75% | 2454 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,057 psi | 66% | 2365 fps | 96.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,413 psi | 84% | 2612 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 50,444 psi | 89% | 2490 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 49,356 psi | 87% | 2467 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 49,313 psi | 87% | 2441 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 86% | 49,922 psi | 88% | 2477 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 92% | 49,647 psi | 88% | 2530 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 90% | 50,386 psi | 89% | 2497 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 48,341 psi | 85% | 2474 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 51,010 psi | 90% | 2516 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 49,734 psi | 88% | 2559 fps | 97.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,969 psi | 64% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 49,327 psi | 87% | 2441 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 48,443 psi | 86% | 2418 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 48,080 psi | 85% | 2395 fps | 97.8% |
| IMR 4350 | <<locked>> | 94% | 49,748 psi | 88% | 2474 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 51,097 psi | 90% | 2470 fps | 98.3% |
| IMR 4831 | <<locked>> | 96% | 51,140 psi | 90% | 2530 fps | 99.9% |
| IMR 4895 | <<locked>> | 84% | 50,691 psi | 90% | 2500 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 50,647 psi | 90% | 2454 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 50,633 psi | 90% | 2411 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 48,515 psi | 86% | 2418 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 50,633 psi | 90% | 2467 fps | 99.2% |
| Lovex S070 | <<locked>> | 92% | 48,472 psi | 86% | 2454 fps | 98.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,999 psi | 65% | 2297 fps | 96.2% |
| Norma 201 | <<locked>> | 82% | 49,995 psi | 88% | 2428 fps | 100% |
| Norma 202 | <<locked>> | 82% | 50,430 psi | 89% | 2428 fps | 100% |
| Norma 203B | <<locked>> | 84% | 48,776 psi | 86% | 2461 fps | 100% |
| Norma 204 | <<locked>> | 94% | 49,821 psi | 88% | 2513 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 47,181 psi | 83% | 2572 fps | 97.7% |
| Norma URP | <<locked>> | 94% | 49,908 psi | 88% | 2526 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 48,776 psi | 86% | 2480 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 48,414 psi | 86% | 2520 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,506 psi | 65% | 1562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 50,256 psi | 89% | 2464 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 49,545 psi | 88% | 2526 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 48,863 psi | 86% | 2559 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 50,140 psi | 89% | 2556 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 49,472 psi | 87% | 2579 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 84% | 50,372 psi | 89% | 2425 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 49,269 psi | 87% | 2461 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,748 psi | 88% | 2536 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 90% | 49,313 psi | 87% | 2441 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 50,633 psi | 90% | 2467 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 82% | 50,647 psi | 90% | 2454 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 48,515 psi | 86% | 2418 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 48,472 psi | 86% | 2454 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 50,531 psi | 89% | 2513 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 49,385 psi | 87% | 2451 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 51,169 psi | 90% | 2369 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 48,414 psi | 86% | 2333 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 50,647 psi | 90% | 2428 fps | 98.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,269 psi | 87% | 2533 fps | 96.8% |
| Somchem S335 | <<locked>> | 82% | 50,778 psi | 90% | 2372 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 49,850 psi | 88% | 2461 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 47,747 psi | 84% | 2523 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,546 psi | 89% | 2520 fps | 97.8% |
| Vihtavuori N135 | <<locked>> | 84% | 50,401 psi | 89% | 2395 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 50,705 psi | 90% | 2408 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 50,908 psi | 90% | 2441 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 48,762 psi | 86% | 2474 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 84% | 48,892 psi | 86% | 2405 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 50,995 psi | 90% | 2523 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,891 psi | 83% | 2523 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 48,298 psi | 85% | 2451 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 49,937 psi | 88% | 2533 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,855 psi | 67% | 2484 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 48,965 psi | 87% | 2454 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 47,485 psi | 84% | 2461 fps | 96% |
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% | 44,614 psi | 79% | 2320 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,381 psi | 77% | 2310 fps | 95.9% |
| Accurate 3100 | <<locked>> | 92% | 33,982 psi | 60% | 2238 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 42,177 psi | 75% | 2323 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,386 psi | 55% | 2188 fps | 96.2% |
| ADI AR 2206H | <<locked>> | 80% | 47,979 psi | 85% | 2431 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 40,582 psi | 72% | 2297 fps | 99% |
| ADI AR 2209 | <<locked>> | 96% | 45,716 psi | 81% | 2461 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,642 psi | 77% | 2470 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,524 psi | 72% | 2316 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,613 psi | 77% | 2379 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,633 psi | 56% | 2198 fps | 96.3% |
| Alliant Reloder-17 | 40 gr | 80% | 35,056 psi | 62% | 2306 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 96% | 45,078 psi | 80% | 2454 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,875 psi | 46% | 2073 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,969 psi | 62% | 2316 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,169 psi | 55% | 2270 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,282 psi | 84% | 2441 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 40,524 psi | 72% | 2329 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 41,031 psi | 73% | 2303 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 41,118 psi | 73% | 2333 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 84% | 38,189 psi | 68% | 2326 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 84% | 41,684 psi | 74% | 2349 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,993 psi | 51% | 2106 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,628 psi | 79% | 2421 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 40,205 psi | 71% | 2392 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 48% | 1362 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,209 psi | 82% | 2392 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,656 psi | 75% | 2323 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,020 psi | 80% | 2346 fps | 97.2% |
| IMR 4350 | <<locked>> | 88% | 41,176 psi | 73% | 2329 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,710 psi | 67% | 2238 fps | 95% |
| IMR 4831 | <<locked>> | 80% | 30,429 psi | 54% | 2149 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 44,686 psi | 79% | 2405 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 47,311 psi | 84% | 2405 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,442 psi | 84% | 2365 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,772 psi | 76% | 2326 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,157 psi | 62% | 2192 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 37,811 psi | 67% | 2267 fps | 95.5% |
| Lovex S071 | <<locked>> | 98% | 34,693 psi | 61% | 2251 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 46,789 psi | 83% | 2382 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,166 psi | 83% | 2382 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,018 psi | 76% | 2369 fps | 99.7% |
| Norma 204 | <<locked>> | 92% | 46,586 psi | 82% | 2461 fps | 95.7% |
| Norma MRP | <<locked>> | 94% | 38,595 psi | 68% | 2408 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 31,531 psi | 56% | 2185 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 42,424 psi | 75% | 2382 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 35,099 psi | 62% | 2270 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,180 psi | 48% | 1394 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,408 psi | 73% | 2316 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,209 psi | 82% | 2474 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,304 psi | 66% | 2362 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,024 psi | 55% | 2201 fps | 95.5% |
| ReloadSwiss RS 70 | 41.7 gr | 82% | 33,112 psi | 59% | 2254 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 44,715 psi | 79% | 2339 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,971 psi | 67% | 2277 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 96% | 43,642 psi | 77% | 2434 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 84% | 41,031 psi | 73% | 2303 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,157 psi | 62% | 2192 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,311 psi | 84% | 2405 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,772 psi | 76% | 2326 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 37,811 psi | 67% | 2267 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,972 psi | 69% | 2323 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,296 psi | 82% | 2402 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,138 psi | 85% | 2329 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,277 psi | 71% | 2215 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 39,276 psi | 69% | 2241 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,236 psi | 76% | 2431 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 47,616 psi | 84% | 2326 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 38,696 psi | 68% | 2280 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 28,471 psi | 50% | 2149 fps | 98.2% |
| Somchem S385 | <<locked>> | 92% | 39,160 psi | 69% | 2329 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 44,498 psi | 79% | 2316 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,686 psi | 79% | 2323 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,767 psi | 65% | 2221 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 33,054 psi | 58% | 2188 fps | 96.5% |
| Vihtavuori N540 | <<locked>> | 80% | 43,163 psi | 76% | 2320 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,489 psi | 57% | 2188 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 27,789 psi | 49% | 2142 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,590 psi | 58% | 2169 fps | 98.4% |
| Winchester 760 | <<locked>> | 84% | 38,450 psi | 68% | 2333 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,730 psi | 45% | 2139 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,818 psi | 81% | 2405 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 44,280 psi | 78% | 2408 fps | 95.1% |
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 84 powders for 7 x 57 loaded with the .284 | 175gr | Nosler Partition. Alliant Reloder-26 delivers the highest muzzle velocity at 2,612 fps; across all powders the maximum-charge window runs from 1,526 fps to 2,612 fps. Accurate 3100 gives the best case fill at 100 %, and 84 of the 84 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 175.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, 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. Vihtavuori N165, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for 7 x 57 with the .284 | 175gr | Nosler Partition 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.