Load Specifications
Load data in caliber 7 x 57 R with .284 | 139gr | Hornady CX bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and SNPE Vectan SP 11.
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 2015 | <<locked>> | 84% | 44,295 psi | 90% | 2543 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 43,424 psi | 88% | 2585 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 43,279 psi | 88% | 2598 fps | 99.6% |
| Accurate 4064 | <<locked>> | 92% | 43,656 psi | 89% | 2621 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 41,901 psi | 85% | 2644 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 86% | 43,627 psi | 88% | 2605 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 92% | 44,556 psi | 90% | 2602 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 84% | 43,120 psi | 87% | 2566 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 84% | 41,887 psi | 85% | 2566 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 42,250 psi | 86% | 2671 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 43,279 psi | 88% | 2618 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 90% | 44,092 psi | 89% | 2635 fps | 97.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 43,018 psi | 87% | 2661 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 96% | 43,482 psi | 88% | 2703 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 42,598 psi | 86% | 2602 fps | 96.2% |
| Bofors RP3 | <<locked>> | 92% | 42,757 psi | 87% | 2621 fps | 98.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 42,714 psi | 87% | 2516 fps | 98.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 43,961 psi | 89% | 2631 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 82% | 42,148 psi | 85% | 2651 fps | 96.7% |
| Hodgdon H380 | <<locked>> | 92% | 44,382 psi | 90% | 2625 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 86% | 43,918 psi | 89% | 2615 fps | 98.2% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,059 psi | 79% | 2549 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 41,930 psi | 85% | 2628 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,272 psi | 70% | 1650 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 42,264 psi | 86% | 2566 fps | 97.7% |
| IMR 3031 | <<locked>> | 86% | 42,641 psi | 86% | 2615 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 43,787 psi | 89% | 2582 fps | 97.2% |
| IMR 4895 | <<locked>> | 88% | 42,192 psi | 86% | 2612 fps | 97.4% |
| IMR 8208 XBR | <<locked>> | 84% | 43,120 psi | 87% | 2566 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 88% | 44,614 psi | 90% | 2631 fps | 99.7% |
| Lovex S060 | <<locked>> | 86% | 44,237 psi | 90% | 2546 fps | 97.7% |
| Lovex S062 | <<locked>> | 90% | 43,149 psi | 88% | 2582 fps | 98.7% |
| Norma 201 | <<locked>> | 86% | 42,206 psi | 86% | 2552 fps | 98.5% |
| Norma 202 | <<locked>> | 86% | 42,438 psi | 86% | 2569 fps | 99.8% |
| Norma 203B | <<locked>> | 90% | 43,294 psi | 88% | 2621 fps | 97.6% |
| Norma URPᴾ | <<locked>> | 100% | 42,859 psi | 87% | 2651 fps | 96% |
| Ramshot Big Game | <<locked>> | 90% | 42,989 psi | 87% | 2635 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 42,090 psi | 85% | 2582 fps | 97.2% |
| Ramshot X-Terminator | <<locked>> | 82% | 43,859 psi | 89% | 2562 fps | 97.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,534 psi | 70% | 1690 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 43,163 psi | 88% | 2680 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 43,221 psi | 88% | 2713 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 84% | 43,642 psi | 89% | 2556 fps | 99.8% |
| Rottweil R 902 | <<locked>> | 88% | 42,569 psi | 86% | 2549 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 94% | 42,656 psi | 87% | 2612 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 88% | 44,614 psi | 90% | 2631 fps | 99.7% |
| Shooters World Precision | <<locked>> | 90% | 43,149 psi | 88% | 2582 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 41,887 psi | 85% | 2618 fps | 97.1% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 42,047 psi | 85% | 2569 fps | 97.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 44,498 psi | 90% | 2523 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 44,077 psi | 89% | 2523 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 43,221 psi | 88% | 2589 fps | 98.8% |
| Somchem S335 | <<locked>> | 86% | 43,598 psi | 88% | 2523 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 43,482 psi | 88% | 2585 fps | 97.4% |
| Somchem S355 | <<locked>> | 94% | 43,671 psi | 89% | 2615 fps | 98.1% |
| Somchem S365ᴾ | <<locked>> | 100% | 37,884 psi | 77% | 2595 fps | 98% |
| Vihtavuori N133 | <<locked>> | 86% | 44,556 psi | 90% | 2523 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 44,512 psi | 90% | 2592 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 42,960 psi | 87% | 2556 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 94% | 42,090 psi | 85% | 2559 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 84% | 43,120 psi | 87% | 2562 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 90% | 43,961 psi | 89% | 2589 fps | 99.8% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 44,150 psi | 90% | 2657 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 43,584 psi | 88% | 2592 fps | 98% |
| Winchester 748 | <<locked>> | 84% | 41,916 psi | 85% | 2602 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 44,019 psi | 89% | 2625 fps | 98.2% |
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 2015 | <<locked>> | 80% | 38,885 psi | 79% | 2451 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 31,024 psi | 63% | 2346 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 37,405 psi | 76% | 2487 fps | 98.8% |
| Accurate 4064 | <<locked>> | 80% | 29,399 psi | 60% | 2323 fps | 97.7% |
| Accurate 4350 | <<locked>> | 98% | 39,204 psi | 80% | 2595 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 35,708 psi | 72% | 2441 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 88% | 39,291 psi | 80% | 2500 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 37,724 psi | 77% | 2461 fps | 97.4% |
| Alliant AR-Comp | <<locked>> | 80% | 36,405 psi | 74% | 2474 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 39,552 psi | 80% | 2612 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 33,402 psi | 68% | 2415 fps | 95.7% |
| Alliant Reloder-15 | <<locked>> | 86% | 38,841 psi | 79% | 2530 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,611 psi | 82% | 2612 fps | 95.3% |
| Alliant Reloder-17 | 41.1 gr | 90% | 35,433 psi | 72% | 2526 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,900 psi | 81% | 2546 fps | 95.4% |
| Bofors RP3 | <<locked>> | 84% | 32,561 psi | 66% | 2408 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,016 psi | 81% | 2464 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 35,592 psi | 72% | 2467 fps | 97.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 39,392 psi | 80% | 2592 fps | 95.9% |
| Hodgdon H380 | <<locked>> | 90% | 41,423 psi | 84% | 2572 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 35,911 psi | 73% | 2454 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 34,374 psi | 70% | 2448 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,111 psi | 65% | 2408 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,164 psi | 51% | 1470 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 34,766 psi | 71% | 2411 fps | 95.6% |
| IMR 3031 | <<locked>> | 80% | 34,824 psi | 71% | 2467 fps | 99.8% |
| IMR 4064 | <<locked>> | 84% | 36,289 psi | 74% | 2431 fps | 95% |
| IMR 4895 | <<locked>> | 82% | 34,679 psi | 70% | 2451 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 37,724 psi | 77% | 2461 fps | 97.4% |
| Lovex D073.6 | <<locked>> | 80% | 33,750 psi | 68% | 2421 fps | 98% |
| Lovex S060 | <<locked>> | 80% | 36,854 psi | 75% | 2398 fps | 95.8% |
| Lovex S062 | <<locked>> | 80% | 31,444 psi | 64% | 2336 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 34,983 psi | 71% | 2405 fps | 96.7% |
| Norma 202 | <<locked>> | 80% | 35,085 psi | 71% | 2421 fps | 98.8% |
| Norma 203B | <<locked>> | 84% | 35,607 psi | 72% | 2464 fps | 95.4% |
| Norma URP | <<locked>> | 98% | 40,089 psi | 81% | 2598 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 86% | 37,724 psi | 77% | 2526 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,622 psi | 74% | 2470 fps | 95.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 41,162 psi | 83% | 2510 fps | 96.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,498 psi | 52% | 1509 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 37,579 psi | 76% | 2566 fps | 95.3% |
| ReloadSwiss RS 60 | 37.5 gr | 82% | 29,153 psi | 59% | 2365 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 38,435 psi | 78% | 2457 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 80% | 33,228 psi | 67% | 2356 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 86% | 32,489 psi | 66% | 2398 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 33,750 psi | 68% | 2421 fps | 98% |
| Shooters World Precision | <<locked>> | 80% | 31,444 psi | 64% | 2336 fps | 95.4% |
| SNPE Vectan SP 11 | 39.6 gr | 88% | 36,753 psi | 75% | 2513 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 36,825 psi | 75% | 2464 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 36,738 psi | 75% | 2379 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 29,936 psi | 61% | 2244 fps | 98.4% |
| Somchem S321 | <<locked>> | 80% | 40,437 psi | 82% | 2536 fps | 98.3% |
| Somchem S335 | <<locked>> | 80% | 36,260 psi | 74% | 2385 fps | 99.5% |
| Somchem S341 | <<locked>> | 80% | 35,317 psi | 72% | 2425 fps | 95.1% |
| Somchem S355 | <<locked>> | 86% | 33,808 psi | 69% | 2411 fps | 95.3% |
| Somchem S365 | <<locked>> | 94% | 31,227 psi | 63% | 2431 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 36,825 psi | 75% | 2385 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 31,879 psi | 65% | 2356 fps | 99.8% |
| Vihtavuori N140 | <<locked>> | 80% | 33,170 psi | 67% | 2362 fps | 98.7% |
| Vihtavuori N150 | <<locked>> | 84% | 30,211 psi | 61% | 2310 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 37,594 psi | 76% | 2457 fps | 97.4% |
| Vihtavuori N540 | <<locked>> | 80% | 31,763 psi | 64% | 2343 fps | 97.8% |
| Vihtavuori N550 | <<locked>> | 98% | 41,263 psi | 84% | 2602 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 35,694 psi | 72% | 2434 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 36,535 psi | 74% | 2493 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,344 psi | 68% | 2405 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 66 powders for 7 x 57 R loaded with the .284 | 139gr | Hornady CX. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,713 fps; across all powders the maximum-charge window runs from 1,650 fps to 2,713 fps. Accurate 4350 gives the best case fill at 100 %, and 66 of the 66 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.284" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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 60, Alliant Reloder-17, SNPE Vectan SP 11 rank at the top here: for 7 x 57 R with the .284 | 139gr | Hornady CX 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.