Load Specifications
Load data in caliber 7 x 57 R with .284 | 140gr | Woodleigh HS bullet and 51 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 ReloadSwiss RS 62.
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% | 43,671 psi | 89% | 2602 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 43,932 psi | 89% | 2644 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 42,482 psi | 86% | 2684 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 86% | 43,207 psi | 88% | 2612 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 43,685 psi | 89% | 2746 fps | 97.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,496 psi | 86% | 2631 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,960 psi | 87% | 2644 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 42,293 psi | 86% | 2694 fps | 97.2% |
| Alliant Reloder-17 | <<locked>> | 90% | 42,293 psi | 86% | 2723 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 36,143 psi | 73% | 2582 fps | 96.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 43,888 psi | 89% | 2661 fps | 97.5% |
| Bofors RP3 | <<locked>> | 86% | 42,424 psi | 86% | 2641 fps | 99% |
| Hodgdon H380 | <<locked>> | 86% | 43,613 psi | 88% | 2648 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 44,063 psi | 89% | 2687 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 43,874 psi | 89% | 2697 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,157 psi | 71% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 43,424 psi | 88% | 2625 fps | 98.8% |
| IMR 4064 | <<locked>> | 84% | 42,554 psi | 86% | 2592 fps | 97.8% |
| IMR 4831 | <<locked>> | 96% | 43,613 psi | 88% | 2687 fps | 97.5% |
| IMR 4895 | <<locked>> | 84% | 44,005 psi | 89% | 2674 fps | 98.6% |
| Lovex D073.6 | <<locked>> | 82% | 43,787 psi | 89% | 2641 fps | 99.9% |
| Lovex S062 | <<locked>> | 84% | 42,351 psi | 86% | 2598 fps | 99.2% |
| Lovex S065 | <<locked>> | 92% | 44,382 psi | 90% | 2635 fps | 96% |
| Norma 201 | <<locked>> | 82% | 44,019 psi | 89% | 2615 fps | 99.3% |
| Norma 202 | <<locked>> | 82% | 44,208 psi | 90% | 2625 fps | 100% |
| Norma 203B | <<locked>> | 84% | 42,279 psi | 86% | 2635 fps | 98.2% |
| Norma URP | <<locked>> | 94% | 42,569 psi | 86% | 2680 fps | 97% |
| Ramshot Big Game | <<locked>> | 84% | 42,148 psi | 85% | 2651 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,491 psi | 72% | 1749 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,322 psi | 86% | 2694 fps | 97.7% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 42,322 psi | 86% | 2736 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 42,148 psi | 85% | 2700 fps | 96.7% |
| Rottweil R 902 | <<locked>> | 84% | 44,585 psi | 90% | 2618 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 88% | 42,554 psi | 86% | 2635 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 44,382 psi | 90% | 2635 fps | 96% |
| Shooters World Match Rifle | <<locked>> | 82% | 43,787 psi | 89% | 2641 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 42,351 psi | 86% | 2598 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 43,859 psi | 89% | 2690 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 43,395 psi | 88% | 2631 fps | 98.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,627 psi | 86% | 2530 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 43,308 psi | 88% | 2638 fps | 98.8% |
| Somchem S365 | <<locked>> | 98% | 43,163 psi | 88% | 2740 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 84% | 43,772 psi | 89% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 44,570 psi | 90% | 2608 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 44,019 psi | 89% | 2621 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 92% | 41,814 psi | 85% | 2631 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 84% | 43,091 psi | 87% | 2602 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 43,845 psi | 89% | 2684 fps | 97% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,827 psi | 79% | 2661 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 42,192 psi | 86% | 2615 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,801 psi | 87% | 2635 fps | 98.7% |
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% | 38,377 psi | 78% | 2510 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 36,303 psi | 74% | 2497 fps | 99.7% |
| Accurate 4350 | <<locked>> | 90% | 36,927 psi | 75% | 2569 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 35,853 psi | 73% | 2457 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,927 psi | 77% | 2615 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,201 psi | 71% | 2477 fps | 97.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,000 psi | 77% | 2543 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 90% | 37,521 psi | 76% | 2585 fps | 95.6% |
| Alliant Reloder-17 | 42.6 gr | 82% | 32,387 psi | 66% | 2484 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 96% | 32,082 psi | 65% | 2477 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,191 psi | 84% | 2608 fps | 96.9% |
| Bofors RP3 | <<locked>> | 80% | 34,708 psi | 70% | 2477 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 82% | 38,000 psi | 77% | 2533 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 32,169 psi | 65% | 2428 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,232 psi | 78% | 2582 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,252 psi | 53% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,683 psi | 83% | 2569 fps | 98.2% |
| IMR 4064 | <<locked>> | 80% | 37,594 psi | 76% | 2490 fps | 96.5% |
| IMR 4831 | <<locked>> | 90% | 35,752 psi | 73% | 2526 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 38,914 psi | 79% | 2572 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 80% | 40,988 psi | 83% | 2589 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 37,463 psi | 76% | 2500 fps | 98.2% |
| Lovex S065 | <<locked>> | 90% | 41,945 psi | 85% | 2589 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 41,263 psi | 84% | 2562 fps | 99% |
| Norma 202 | <<locked>> | 80% | 41,408 psi | 84% | 2575 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 37,391 psi | 76% | 2530 fps | 97% |
| Norma URP | <<locked>> | 90% | 37,289 psi | 76% | 2572 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 36,579 psi | 74% | 2533 fps | 96.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,382 psi | 54% | 1562 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,537 psi | 80% | 2638 fps | 97% |
| ReloadSwiss RS 60 | 41.6 gr | 80% | 32,329 psi | 66% | 2497 fps | 98% |
| ReloadSwiss RS 62 | 46.8 gr | 90% | 36,956 psi | 75% | 2589 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 39,189 psi | 79% | 2513 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 80% | 32,576 psi | 66% | 2421 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,945 psi | 85% | 2589 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,988 psi | 83% | 2589 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 37,463 psi | 76% | 2500 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,721 psi | 68% | 2470 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,712 psi | 83% | 2579 fps | 97.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,389 psi | 72% | 2392 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 33,605 psi | 68% | 2431 fps | 96.3% |
| Somchem S365 | <<locked>> | 86% | 29,414 psi | 60% | 2411 fps | 95.9% |
| Vihtavuori N135 | <<locked>> | 80% | 38,493 psi | 78% | 2507 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,146 psi | 79% | 2510 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,850 psi | 65% | 2369 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 88% | 36,666 psi | 74% | 2523 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 37,695 psi | 76% | 2497 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 38,522 psi | 78% | 2579 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 96% | 34,243 psi | 69% | 2552 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 32,416 psi | 66% | 2395 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,900 psi | 81% | 2575 fps | 98.2% |
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 51 powders for 7 x 57 R loaded with the .284 | 140gr | Woodleigh HS. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,746 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,746 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 51 of the 51 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon TrailBoss, ReloadSwiss RS 14 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, ReloadSwiss RS 62 rank at the top here: for 7 x 57 R with the .284 | 140gr | Woodleigh HS 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.