Load Specifications
Load data in caliber 7 x 57 R with .284 | 139gr | MEN SF bullet and 56 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% | 42,888 psi | 87% | 2595 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 42,902 psi | 87% | 2631 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 44,295 psi | 90% | 2723 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 82% | 44,048 psi | 89% | 2651 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 86% | 42,322 psi | 86% | 2598 fps | 97.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 42,627 psi | 86% | 2726 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 44,440 psi | 90% | 2671 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,337 psi | 86% | 2635 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 96% | 44,005 psi | 89% | 2730 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 92% | 44,338 psi | 90% | 2766 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,259 psi | 72% | 2562 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 43,018 psi | 87% | 2648 fps | 97.2% |
| Bofors RP3 | <<locked>> | 88% | 44,338 psi | 90% | 2680 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 86% | 42,685 psi | 87% | 2635 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 82% | 44,440 psi | 90% | 2661 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 42,989 psi | 87% | 2671 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,902 psi | 87% | 2684 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,143 psi | 71% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,786 psi | 87% | 2615 fps | 98.5% |
| IMR 3031 | <<locked>> | 82% | 43,642 psi | 89% | 2657 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 44,469 psi | 90% | 2635 fps | 98.1% |
| IMR 4831 | <<locked>> | 96% | 42,453 psi | 86% | 2671 fps | 97% |
| IMR 4895 | <<locked>> | 84% | 43,323 psi | 88% | 2667 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 82% | 42,830 psi | 87% | 2628 fps | 99.8% |
| Lovex S060 | <<locked>> | 82% | 44,353 psi | 90% | 2589 fps | 98.4% |
| Lovex S062 | <<locked>> | 86% | 44,266 psi | 90% | 2638 fps | 99.3% |
| Norma 201 | <<locked>> | 82% | 43,091 psi | 87% | 2605 fps | 99.1% |
| Norma 202 | <<locked>> | 82% | 43,236 psi | 88% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 86% | 44,150 psi | 90% | 2671 fps | 98.4% |
| Norma URP | <<locked>> | 96% | 44,237 psi | 90% | 2720 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 86% | 44,063 psi | 89% | 2690 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,476 psi | 72% | 1749 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 44,222 psi | 90% | 2736 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 44,019 psi | 89% | 2772 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 44,150 psi | 90% | 2743 fps | 97% |
| Rottweil R 902 | <<locked>> | 84% | 43,642 psi | 89% | 2605 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 90% | 44,251 psi | 90% | 2674 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 82% | 42,830 psi | 87% | 2628 fps | 99.8% |
| Shooters World Precision | <<locked>> | 86% | 44,266 psi | 90% | 2638 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,786 psi | 87% | 2674 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 44,237 psi | 90% | 2631 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 42,511 psi | 86% | 2618 fps | 98% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 44,614 psi | 90% | 2566 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 44,150 psi | 90% | 2566 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 43,859 psi | 89% | 2631 fps | 98.2% |
| Somchem S355 | <<locked>> | 88% | 42,409 psi | 86% | 2625 fps | 98.5% |
| Somchem S365 | <<locked>> | 98% | 42,090 psi | 85% | 2720 fps | 99.5% |
| Vihtavuori N135 | <<locked>> | 84% | 42,743 psi | 87% | 2589 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 43,656 psi | 89% | 2598 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 43,163 psi | 88% | 2612 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 94% | 43,801 psi | 89% | 2671 fps | 97% |
| Vihtavuori N540 | <<locked>> | 84% | 42,221 psi | 86% | 2589 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 94% | 42,714 psi | 87% | 2667 fps | 96.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,782 psi | 77% | 2641 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 44,019 psi | 89% | 2651 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 41,916 psi | 85% | 2621 fps | 98.5% |
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% | 37,623 psi | 76% | 2500 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,607 psi | 72% | 2487 fps | 99.6% |
| Accurate 4350 | <<locked>> | 92% | 38,696 psi | 78% | 2615 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 41,292 psi | 84% | 2595 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 35,259 psi | 72% | 2448 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 37,376 psi | 76% | 2605 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,563 psi | 70% | 2467 fps | 96.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,115 psi | 75% | 2523 fps | 96.1% |
| Alliant Reloder-16 | 43.8 gr | 92% | 38,957 psi | 79% | 2621 fps | 95.9% |
| Alliant Reloder-17 | 43.1 gr | 84% | 33,997 psi | 69% | 2533 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 33,301 psi | 68% | 2513 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,335 psi | 82% | 2592 fps | 96.4% |
| Bofors RP3 | <<locked>> | 80% | 33,837 psi | 69% | 2464 fps | 96.8% |
| Hodgdon H380 | <<locked>> | 84% | 40,001 psi | 81% | 2579 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 41,611 psi | 84% | 2605 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 33,605 psi | 68% | 2467 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,376 psi | 76% | 2569 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,121 psi | 53% | 1526 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,089 psi | 81% | 2562 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 40,944 psi | 83% | 2612 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,985 psi | 75% | 2480 fps | 96.1% |
| IMR 4831 | <<locked>> | 92% | 37,318 psi | 76% | 2566 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 37,971 psi | 77% | 2556 fps | 97% |
| Lovex D073.6 | <<locked>> | 80% | 40,030 psi | 81% | 2575 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 41,611 psi | 84% | 2536 fps | 97.9% |
| Lovex S062 | <<locked>> | 80% | 36,593 psi | 74% | 2484 fps | 97.9% |
| Norma 201 | <<locked>> | 80% | 40,596 psi | 82% | 2552 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 40,741 psi | 83% | 2566 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 36,477 psi | 74% | 2513 fps | 96.5% |
| Norma URP | <<locked>> | 92% | 39,044 psi | 79% | 2612 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 36,013 psi | 73% | 2523 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,266 psi | 53% | 1562 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,580 psi | 78% | 2621 fps | 96.5% |
| ReloadSwiss RS 60 | 41 gr | 80% | 31,662 psi | 64% | 2480 fps | 97.5% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,406 psi | 78% | 2625 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 38,537 psi | 78% | 2503 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 31,952 psi | 65% | 2411 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,030 psi | 81% | 2575 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 36,593 psi | 74% | 2484 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,982 psi | 67% | 2454 fps | 95% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,452 psi | 84% | 2579 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,856 psi | 81% | 2562 fps | 97.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,780 psi | 71% | 2385 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 41,684 psi | 85% | 2520 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,104 psi | 83% | 2579 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 32,996 psi | 67% | 2421 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 28,747 psi | 58% | 2395 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 37,768 psi | 77% | 2497 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,493 psi | 78% | 2500 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 31,270 psi | 63% | 2359 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 90% | 38,363 psi | 78% | 2562 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 37,101 psi | 75% | 2490 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 37,739 psi | 77% | 2566 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 35,578 psi | 72% | 2589 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,836 psi | 65% | 2382 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,015 psi | 79% | 2562 fps | 97.8% |
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 56 powders for 7 x 57 R loaded with the .284 | 139gr | MEN SF. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,772 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,772 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 56 of the 56 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 139.0 gr projectile in 0.284" calls for a 1:11.0 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, Alliant Reloder-16 rank at the top here: for 7 x 57 R with the .284 | 139gr | MEN SF 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.