Load Specifications
Load data in caliber 7 x 57 R with .284 | 140gr | Woodleigh PP SN bullet and 48 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 Alliant Reloder-16.
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% | 44,512 psi | 90% | 2621 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 41,945 psi | 85% | 2612 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 43,439 psi | 88% | 2707 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 86% | 43,845 psi | 89% | 2631 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 44,295 psi | 90% | 2766 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 43,497 psi | 88% | 2657 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 84% | 43,947 psi | 89% | 2667 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 94% | 43,120 psi | 87% | 2717 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 90% | 43,105 psi | 87% | 2746 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,782 psi | 75% | 2605 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 40,857 psi | 83% | 2753 fps | 96.1% |
| Bofors RP3 | <<locked>> | 86% | 43,091 psi | 87% | 2657 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 86% | 44,208 psi | 90% | 2664 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 42,105 psi | 85% | 2654 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 41,771 psi | 85% | 2661 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,273 psi | 72% | 1719 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 44,106 psi | 89% | 2641 fps | 98.9% |
| IMR 4064 | <<locked>> | 84% | 43,265 psi | 88% | 2615 fps | 98.1% |
| IMR 4831 | <<locked>> | 96% | 44,512 psi | 90% | 2710 fps | 97.8% |
| IMR 4895 | <<locked>> | 82% | 42,206 psi | 86% | 2648 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 82% | 44,570 psi | 90% | 2661 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 43,076 psi | 87% | 2618 fps | 99.3% |
| Norma 203B | <<locked>> | 84% | 43,265 psi | 88% | 2657 fps | 98.5% |
| Norma URP | <<locked>> | 94% | 43,453 psi | 88% | 2703 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 84% | 42,772 psi | 87% | 2667 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,607 psi | 72% | 1759 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 43,105 psi | 87% | 2713 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 43,105 psi | 87% | 2759 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 43,236 psi | 88% | 2726 fps | 97.1% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 43,497 psi | 88% | 2740 fps | 96.4% |
| Rottweil R 902 | <<locked>> | 82% | 42,525 psi | 86% | 2585 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 88% | 43,279 psi | 88% | 2654 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 44,570 psi | 90% | 2661 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 43,076 psi | 87% | 2618 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 44,541 psi | 90% | 2710 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 44,048 psi | 89% | 2648 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 43,337 psi | 88% | 2546 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 44,034 psi | 89% | 2657 fps | 99% |
| Somchem S365 | <<locked>> | 98% | 44,295 psi | 90% | 2766 fps | 99.8% |
| Vihtavuori N135 | <<locked>> | 82% | 41,800 psi | 85% | 2569 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 42,525 psi | 86% | 2579 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 42,177 psi | 86% | 2595 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 92% | 42,641 psi | 86% | 2651 fps | 97% |
| Vihtavuori N540 | <<locked>> | 84% | 43,743 psi | 89% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 41,901 psi | 85% | 2654 fps | 96.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,668 psi | 80% | 2684 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 42,859 psi | 87% | 2635 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 43,468 psi | 88% | 2654 fps | 98.9% |
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% | 39,204 psi | 80% | 2526 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,072 psi | 75% | 2516 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 35,375 psi | 72% | 2539 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 36,506 psi | 74% | 2477 fps | 96% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 38,783 psi | 79% | 2644 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,882 psi | 73% | 2497 fps | 97.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,464 psi | 78% | 2556 fps | 96.8% |
| Alliant Reloder-16 | 43.2 gr | 88% | 35,737 psi | 72% | 2549 fps | 95% |
| Alliant Reloder-17 | 43.4 gr | 82% | 33,083 psi | 67% | 2510 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,692 psi | 66% | 2500 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 38,043 psi | 77% | 2687 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 35,389 psi | 72% | 2500 fps | 97.5% |
| Hodgdon H380 | <<locked>> | 82% | 38,928 psi | 79% | 2556 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 30,879 psi | 63% | 2398 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,928 psi | 79% | 2602 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 53% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 41,408 psi | 84% | 2592 fps | 98.5% |
| IMR 4064 | <<locked>> | 80% | 38,290 psi | 78% | 2513 fps | 96.9% |
| IMR 4831 | <<locked>> | 90% | 36,579 psi | 74% | 2549 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 39,363 psi | 80% | 2585 fps | 97.7% |
| Lovex D073.6 | <<locked>> | 80% | 41,771 psi | 85% | 2612 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 37,971 psi | 77% | 2516 fps | 98.4% |
| Norma 203B | <<locked>> | 80% | 37,826 psi | 77% | 2546 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 38,159 psi | 77% | 2595 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 37,434 psi | 76% | 2559 fps | 96.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,629 psi | 54% | 1575 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 40,306 psi | 82% | 2657 fps | 97.3% |
| ReloadSwiss RS 60 | 42.3 gr | 80% | 32,895 psi | 67% | 2520 fps | 98.3% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 37,724 psi | 77% | 2612 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 40,611 psi | 82% | 2677 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 39,929 psi | 81% | 2536 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 33,257 psi | 67% | 2441 fps | 96.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,771 psi | 85% | 2612 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 37,971 psi | 77% | 2516 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,316 psi | 70% | 2490 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 41,379 psi | 84% | 2595 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,100 psi | 73% | 2411 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 34,316 psi | 70% | 2454 fps | 96.6% |
| Somchem S365 | <<locked>> | 84% | 28,065 psi | 57% | 2375 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 39,334 psi | 80% | 2526 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,856 psi | 81% | 2530 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 32,503 psi | 66% | 2392 fps | 97.5% |
| Vihtavuori N160 | <<locked>> | 88% | 37,463 psi | 76% | 2546 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 38,348 psi | 78% | 2513 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 88% | 36,695 psi | 74% | 2543 fps | 95% |
| Vihtavuori N555 | <<locked>> | 96% | 35,012 psi | 71% | 2579 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 30,908 psi | 63% | 2362 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,538 psi | 82% | 2595 fps | 98.4% |
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 48 powders for 7 x 57 R loaded with the .284 | 140gr | Woodleigh PP SN. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,766 fps; across all powders the maximum-charge window runs from 1,719 fps to 2,766 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 48 of the 48 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon TrailBoss 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, Alliant Reloder-16 rank at the top here: for 7 x 57 R with the .284 | 140gr | Woodleigh PP SN 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.