Load Specifications
Load data in caliber 7 x 57 R with .284 | 162gr | Hornady ELD-X bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, ReloadSwiss RS 70 and Alliant Reloder-17.
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>> | 82% | 42,670 psi | 87% | 2375 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 42,931 psi | 87% | 2418 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 44,396 psi | 90% | 2516 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 86% | 44,614 psi | 90% | 2438 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 42,351 psi | 86% | 2516 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 44,208 psi | 90% | 2457 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 84% | 44,556 psi | 90% | 2470 fps | 99% |
| Alliant Reloder-16 | <<locked>> | 94% | 43,830 psi | 89% | 2526 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 90% | 43,961 psi | 89% | 2552 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,637 psi | 76% | 2434 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 41,669 psi | 85% | 2572 fps | 97.6% |
| Bofors RP3 | <<locked>> | 86% | 44,179 psi | 90% | 2467 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 84% | 42,322 psi | 86% | 2425 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 92% | 44,382 psi | 90% | 2513 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 43,033 psi | 87% | 2467 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 42,641 psi | 86% | 2467 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,476 psi | 72% | 1562 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 44,077 psi | 89% | 2418 fps | 99% |
| IMR 4831 | <<locked>> | 94% | 42,453 psi | 86% | 2467 fps | 98.2% |
| IMR 4895 | <<locked>> | 82% | 42,873 psi | 87% | 2448 fps | 99.2% |
| Lovex S062 | <<locked>> | 84% | 43,976 psi | 89% | 2421 fps | 99.8% |
| Lovex S065 | <<locked>> | 90% | 43,323 psi | 88% | 2418 fps | 97% |
| Lovex S070 | <<locked>> | 92% | 43,613 psi | 88% | 2441 fps | 95.9% |
| Norma 203B | <<locked>> | 84% | 43,874 psi | 89% | 2457 fps | 99.3% |
| Norma URP | <<locked>> | 94% | 44,135 psi | 90% | 2510 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 84% | 43,540 psi | 88% | 2474 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 94% | 43,265 psi | 88% | 2500 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,940 psi | 73% | 1598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 42,728 psi | 87% | 2408 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 43,976 psi | 89% | 2516 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 43,714 psi | 89% | 2556 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 44,135 psi | 90% | 2539 fps | 98.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 44,179 psi | 90% | 2549 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 43,337 psi | 88% | 2392 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 88% | 44,077 psi | 89% | 2461 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 43,323 psi | 88% | 2418 fps | 97% |
| Shooters World Precision | <<locked>> | 84% | 43,976 psi | 89% | 2421 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 92% | 43,613 psi | 88% | 2441 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 42,467 psi | 86% | 2461 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 44,092 psi | 89% | 2349 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 42,177 psi | 86% | 2415 fps | 99.3% |
| Somchem S365 | <<locked>> | 96% | 42,279 psi | 86% | 2516 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 42,714 psi | 87% | 2369 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 43,265 psi | 88% | 2379 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 42,859 psi | 87% | 2402 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 92% | 43,511 psi | 88% | 2461 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 84% | 44,585 psi | 90% | 2418 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 42,699 psi | 87% | 2464 fps | 97.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 40,828 psi | 83% | 2503 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 43,598 psi | 88% | 2444 fps | 99.6% |
| Winchester 760 | <<locked>> | 92% | 44,382 psi | 90% | 2513 fps | 96% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 33,402 psi | 68% | 2421 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 82% | 44,425 psi | 90% | 2457 fps | 99.6% |
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% | 39,972 psi | 81% | 2333 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,797 psi | 77% | 2326 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 33,881 psi | 69% | 2316 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 37,014 psi | 75% | 2293 fps | 97.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 39,494 psi | 80% | 2457 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,579 psi | 74% | 2316 fps | 98.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,320 psi | 80% | 2372 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,272 psi | 70% | 2323 fps | 95.9% |
| Alliant Reloder-17 | 38.3 gr | 80% | 31,560 psi | 64% | 2283 fps | 96.7% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,515 psi | 60% | 2234 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,201 psi | 73% | 2454 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 36,158 psi | 73% | 2320 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 80% | 37,043 psi | 75% | 2320 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 90% | 41,698 psi | 85% | 2464 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,573 psi | 60% | 2182 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,740 psi | 81% | 2415 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,353 psi | 53% | 1391 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 38,812 psi | 79% | 2323 fps | 98% |
| IMR 4831 | <<locked>> | 86% | 32,822 psi | 67% | 2274 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 40,277 psi | 82% | 2398 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 38,783 psi | 79% | 2329 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 38,334 psi | 78% | 2323 fps | 95.6% |
| Lovex S070 | <<locked>> | 90% | 41,002 psi | 83% | 2395 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 38,696 psi | 78% | 2362 fps | 98.4% |
| Norma URP | <<locked>> | 86% | 34,171 psi | 69% | 2313 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 38,130 psi | 77% | 2375 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 92% | 40,727 psi | 83% | 2451 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,585 psi | 54% | 1424 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 39,929 psi | 81% | 2356 fps | 95.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,118 psi | 83% | 2464 fps | 98.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,576 psi | 68% | 2346 fps | 99.4% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,504 psi | 68% | 2326 fps | 95.1% |
| ReloadSwiss RS 70 | 42.8 gr | 88% | 36,274 psi | 74% | 2385 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 40,698 psi | 83% | 2346 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 34,026 psi | 69% | 2267 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,334 psi | 78% | 2323 fps | 95.6% |
| Shooters World Precision | <<locked>> | 80% | 38,783 psi | 79% | 2329 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 41,002 psi | 83% | 2395 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 34,940 psi | 71% | 2313 fps | 97.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,593 psi | 74% | 2224 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 34,911 psi | 71% | 2274 fps | 97.9% |
| Somchem S365 | 36.3 gr | 80% | 25,295 psi | 51% | 2116 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 40,016 psi | 81% | 2326 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,654 psi | 82% | 2336 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,156 psi | 67% | 2218 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 33,489 psi | 68% | 2264 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 39,117 psi | 79% | 2329 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 35,157 psi | 71% | 2316 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 31,531 psi | 64% | 2303 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,501 psi | 60% | 2149 fps | 95.9% |
| Winchester 760 | <<locked>> | 90% | 41,698 psi | 85% | 2464 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,428 psi | 60% | 2303 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,437 psi | 84% | 2408 fps | 99.2% |
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 53 powders for 7 x 57 R loaded with the .284 | 162gr | Hornady ELD-X. Alliant Reloder-26 delivers the highest muzzle velocity at 2,572 fps; across all powders the maximum-charge window runs from 1,562 fps to 2,572 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 53 of the 53 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 162.0 gr projectile in 0.284" calls for a 1:9.5 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. Somchem S365, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for 7 x 57 R with the .284 | 162gr | Hornady ELD-X 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.