Load Specifications
Load data in caliber 7 x 57 with .284 | 174gr | Prvi Partizan SP bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 and Ramshot Hunter.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 48,399 psi | 86% | 2388 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 50,285 psi | 89% | 2438 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 45,571 psi | 81% | 2461 fps | 98.4% |
| Accurate 4064 | <<locked>> | 84% | 48,820 psi | 86% | 2438 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 48,225 psi | 85% | 2513 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 86% | 49,545 psi | 88% | 2461 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 49,893 psi | 88% | 2546 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 47,703 psi | 84% | 2556 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 49,487 psi | 87% | 2543 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 49,951 psi | 88% | 2484 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 50,212 psi | 89% | 2500 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 49,617 psi | 88% | 2569 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 50,241 psi | 89% | 2595 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,791 psi | 86% | 2533 fps | 96.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 45,585 psi | 81% | 2526 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,960 psi | 76% | 2484 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,826 psi | 67% | 2398 fps | 97.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 48,617 psi | 86% | 2648 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 50,111 psi | 89% | 2493 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 45,585 psi | 81% | 2526 fps | 96% |
| Bofors RP7 | <<locked>> | 90% | 50,227 psi | 89% | 2474 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 86% | 50,923 psi | 90% | 2507 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 92% | 50,836 psi | 90% | 2562 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 88% | 48,124 psi | 85% | 2474 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 49,255 psi | 87% | 2500 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 48,472 psi | 86% | 2497 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 50,647 psi | 90% | 2592 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,839 psi | 63% | 1539 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 50,154 psi | 89% | 2467 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 49,226 psi | 87% | 2444 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 48,733 psi | 86% | 2425 fps | 98% |
| IMR 4350 | <<locked>> | 94% | 50,560 psi | 89% | 2500 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,834 psi | 86% | 2451 fps | 98% |
| IMR 4831 | <<locked>> | 94% | 49,023 psi | 87% | 2513 fps | 99.8% |
| IMR 4895 | <<locked>> | 82% | 48,298 psi | 85% | 2477 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 51,082 psi | 90% | 2434 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 49,298 psi | 87% | 2444 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 48,718 psi | 86% | 2454 fps | 99% |
| Lovex S070 | <<locked>> | 92% | 49,327 psi | 87% | 2484 fps | 98.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,000 psi | 67% | 2329 fps | 96.6% |
| Norma 201 | <<locked>> | 82% | 50,502 psi | 89% | 2451 fps | 100% |
| Norma 203B | <<locked>> | 84% | 49,516 psi | 88% | 2487 fps | 100% |
| Norma 204 | <<locked>> | 94% | 50,923 psi | 90% | 2546 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 48,080 psi | 85% | 2602 fps | 98% |
| Norma URP | <<locked>> | 94% | 50,807 psi | 90% | 2552 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 49,763 psi | 88% | 2510 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 49,516 psi | 88% | 2552 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,651 psi | 65% | 1578 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 51,169 psi | 90% | 2493 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 50,401 psi | 89% | 2552 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 49,748 psi | 88% | 2585 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 47,659 psi | 84% | 2533 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 50,444 psi | 89% | 2608 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 82% | 48,298 psi | 85% | 2411 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 50,314 psi | 89% | 2490 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,865 psi | 90% | 2569 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 90% | 50,227 psi | 89% | 2474 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 48,718 psi | 86% | 2454 fps | 99% |
| Shooters World Precision | <<locked>> | 84% | 49,298 psi | 87% | 2444 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 49,327 psi | 87% | 2484 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 48,269 psi | 85% | 2497 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 50,067 psi | 89% | 2477 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 49,168 psi | 87% | 2359 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 48,196 psi | 85% | 2408 fps | 97.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 50,386 psi | 89% | 2562 fps | 97.1% |
| Somchem S355 | <<locked>> | 88% | 50,575 psi | 89% | 2487 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 49,023 psi | 87% | 2556 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 48,269 psi | 85% | 2500 fps | 97.5% |
| Vihtavuori N135 | <<locked>> | 82% | 47,979 psi | 85% | 2379 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 48,573 psi | 86% | 2395 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 48,573 psi | 86% | 2425 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 49,647 psi | 88% | 2500 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 44,541 psi | 79% | 2428 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 84% | 49,864 psi | 88% | 2434 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 48,849 psi | 86% | 2507 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,732 psi | 84% | 2549 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 49,211 psi | 87% | 2477 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 50,836 psi | 90% | 2562 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,624 psi | 68% | 2513 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 49,966 psi | 88% | 2484 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 48,399 psi | 86% | 2493 fps | 96.3% |
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% | 45,556 psi | 81% | 2349 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,019 psi | 78% | 2336 fps | 96.2% |
| Accurate 3100 | <<locked>> | 92% | 34,766 psi | 61% | 2264 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 43,134 psi | 76% | 2352 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,879 psi | 56% | 2211 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 80% | 41,379 psi | 73% | 2323 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 43,772 psi | 77% | 2441 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,628 psi | 79% | 2503 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 43,743 psi | 77% | 2444 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,350 psi | 73% | 2346 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,150 psi | 78% | 2402 fps | 99.6% |
| Alliant Reloder-16 | 38 gr | 80% | 32,039 psi | 57% | 2224 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 35,911 psi | 63% | 2339 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 43,192 psi | 76% | 2438 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 42,714 psi | 76% | 2474 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,339 psi | 47% | 2100 fps | 95.5% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,547 psi | 59% | 2297 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,981 psi | 57% | 2306 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 41,321 psi | 73% | 2356 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 42,714 psi | 76% | 2474 fps | 95.2% |
| Bofors RP7 | <<locked>> | 82% | 39,291 psi | 69% | 2283 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 41,843 psi | 74% | 2359 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 82% | 36,579 psi | 65% | 2306 fps | 95% |
| Hodgdon H4350 | <<locked>> | 84% | 42,308 psi | 75% | 2375 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,646 psi | 52% | 2136 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,397 psi | 80% | 2448 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 40,872 psi | 72% | 2418 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,948 psi | 48% | 1375 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,992 psi | 83% | 2418 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,453 psi | 77% | 2352 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,716 psi | 81% | 2372 fps | 97.4% |
| IMR 4350 | <<locked>> | 86% | 39,407 psi | 70% | 2310 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,363 psi | 68% | 2267 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 31,111 psi | 55% | 2178 fps | 96.2% |
| IMR 4895 | <<locked>> | 80% | 45,237 psi | 80% | 2428 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 48,269 psi | 85% | 2392 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 43,584 psi | 77% | 2356 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,824 psi | 63% | 2221 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 36,289 psi | 64% | 2247 fps | 95.1% |
| Lovex S071 | <<locked>> | 96% | 33,344 psi | 59% | 2234 fps | 95% |
| Norma 201 | <<locked>> | 80% | 47,645 psi | 84% | 2408 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,497 psi | 77% | 2392 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 44,599 psi | 79% | 2441 fps | 95.3% |
| Norma MRP | <<locked>> | 94% | 39,465 psi | 70% | 2441 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 32,213 psi | 57% | 2211 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 43,410 psi | 77% | 2411 fps | 99.7% |
| Ramshot Hunter | 42.3 gr | 84% | 35,650 psi | 63% | 2297 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,238 psi | 48% | 1407 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,047 psi | 74% | 2343 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,094 psi | 83% | 2503 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,189 psi | 68% | 2392 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,618 psi | 56% | 2224 fps | 95.9% |
| ReloadSwiss RS 70 | 42.6 gr | 82% | 33,576 psi | 59% | 2280 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 45,252 psi | 80% | 2362 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,798 psi | 69% | 2303 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 94% | 41,785 psi | 74% | 2418 fps | 95% |
| Rottweil R 907 | <<locked>> | 82% | 39,291 psi | 69% | 2283 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,824 psi | 63% | 2221 fps | 96.2% |
| Shooters World Precision | <<locked>> | 80% | 43,584 psi | 77% | 2356 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 36,289 psi | 64% | 2247 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,668 psi | 70% | 2349 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,007 psi | 83% | 2428 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,828 psi | 72% | 2238 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 37,304 psi | 66% | 2218 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 44,266 psi | 78% | 2464 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 39,479 psi | 70% | 2306 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 28,892 psi | 51% | 2172 fps | 98.5% |
| Somchem S385 | <<locked>> | 92% | 39,900 psi | 71% | 2356 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 45,136 psi | 80% | 2336 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,527 psi | 80% | 2349 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,521 psi | 66% | 2247 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 33,475 psi | 59% | 2211 fps | 96.7% |
| Vihtavuori N165 | <<locked>> | 98% | 41,698 psi | 74% | 2379 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 43,932 psi | 78% | 2346 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,127 psi | 59% | 2218 fps | 96.4% |
| Vihtavuori N555 | <<locked>> | 84% | 28,427 psi | 50% | 2169 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,054 psi | 58% | 2192 fps | 98.6% |
| Winchester 760 | <<locked>> | 82% | 36,579 psi | 65% | 2306 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,237 psi | 46% | 2169 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,847 psi | 83% | 2438 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 45,165 psi | 80% | 2441 fps | 95.5% |
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 81 powders for 7 x 57 loaded with the .284 | 174gr | Prvi Partizan SP. Alliant Reloder-26 delivers the highest muzzle velocity at 2,648 fps; across all powders the maximum-charge window runs from 1,539 fps to 2,648 fps. Accurate 3100 gives the best case fill at 100 %, and 81 of the 81 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. The 174.0 gr projectile in 0.284" calls for a 1:11.5 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-16, ReloadSwiss RS 70, Ramshot Hunter rank at the top here: for 7 x 57 with the .284 | 174gr | Prvi Partizan SP 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.