Load Specifications
Load data in caliber 7 x 57 R with .284 | 162gr | RWS ID Classic bullet and 41 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 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 3100ᴾ | <<locked>> | 100% | 43,801 psi | 89% | 2520 fps | 97.5% |
| Accurate 4064 | <<locked>> | 82% | 44,309 psi | 90% | 2464 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 43,308 psi | 88% | 2526 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 82% | 42,685 psi | 87% | 2434 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 42,801 psi | 87% | 2464 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 90% | 42,322 psi | 86% | 2533 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 86% | 42,322 psi | 86% | 2556 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,568 psi | 84% | 2546 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 43,511 psi | 88% | 2648 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 42,685 psi | 87% | 2470 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 82% | 43,279 psi | 88% | 2474 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 88% | 43,091 psi | 87% | 2523 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 41,843 psi | 85% | 2477 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,752 psi | 73% | 1601 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 42,076 psi | 85% | 2421 fps | 95.8% |
| IMR 4831 | <<locked>> | 92% | 44,266 psi | 90% | 2526 fps | 99% |
| Lovex S065 | <<locked>> | 88% | 44,498 psi | 90% | 2474 fps | 97.8% |
| Lovex S070 | <<locked>> | 88% | 42,235 psi | 86% | 2451 fps | 96.2% |
| Norma MRP | <<locked>> | 98% | 43,381 psi | 88% | 2605 fps | 96.2% |
| Norma URP | <<locked>> | 90% | 43,033 psi | 87% | 2520 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 90% | 42,032 psi | 85% | 2513 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,230 psi | 73% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 43,671 psi | 89% | 2461 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 42,264 psi | 86% | 2559 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 43,105 psi | 87% | 2549 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 42,438 psi | 86% | 2556 fps | 98% |
| Rottweil R 903 | <<locked>> | 84% | 42,859 psi | 87% | 2467 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 44,498 psi | 90% | 2474 fps | 97.8% |
| Shooters World SW4350 | <<locked>> | 88% | 42,235 psi | 86% | 2451 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 43,903 psi | 89% | 2516 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 42,264 psi | 86% | 2349 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 43,947 psi | 89% | 2421 fps | 96.4% |
| Somchem S355 | <<locked>> | 84% | 43,337 psi | 88% | 2464 fps | 99.7% |
| Somchem S365 | <<locked>> | 94% | 44,237 psi | 90% | 2579 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 44,280 psi | 90% | 2454 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 42,148 psi | 85% | 2467 fps | 98.4% |
| Vihtavuori N550 | <<locked>> | 90% | 44,280 psi | 90% | 2523 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 98% | 43,236 psi | 88% | 2569 fps | 99.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 44,585 psi | 90% | 2497 fps | 99.9% |
| Winchester 760 | <<locked>> | 88% | 43,091 psi | 87% | 2523 fps | 96.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,188 psi | 75% | 2566 fps | 99.8% |
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 3100 | <<locked>> | 94% | 35,679 psi | 72% | 2365 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 41,814 psi | 85% | 2421 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,719 psi | 62% | 2264 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 40,321 psi | 82% | 2392 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,118 psi | 81% | 2411 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,169 psi | 63% | 2277 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,664 psi | 70% | 2395 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,108 psi | 55% | 2195 fps | 95% |
| Alliant Reloder-26 | 48.3 gr | 90% | 32,982 psi | 67% | 2408 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 39,929 psi | 81% | 2418 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 80% | 40,553 psi | 82% | 2421 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 86% | 40,147 psi | 81% | 2464 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,558 psi | 58% | 2185 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,818 psi | 54% | 1430 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,523 psi | 80% | 2372 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 32,097 psi | 65% | 2280 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 34,867 psi | 71% | 2280 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 39,900 psi | 81% | 2405 fps | 95.5% |
| Norma MRP | <<locked>> | 96% | 40,683 psi | 83% | 2549 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 31,169 psi | 63% | 2267 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 86% | 36,840 psi | 75% | 2405 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,064 psi | 55% | 1463 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,756 psi | 83% | 2405 fps | 96.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,883 psi | 75% | 2451 fps | 100% |
| ReloadSwiss RS 62 | 42.9 gr | 82% | 32,692 psi | 66% | 2333 fps | 95.5% |
| ReloadSwiss RS 70 | 44.7 gr | 84% | 34,911 psi | 71% | 2392 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 37,565 psi | 76% | 2369 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,867 psi | 71% | 2280 fps | 95.1% |
| Shooters World SW4350 | <<locked>> | 86% | 39,900 psi | 81% | 2405 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,377 psi | 78% | 2411 fps | 98.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,871 psi | 81% | 2310 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 41,176 psi | 84% | 2372 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 38,334 psi | 78% | 2372 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 27,905 psi | 57% | 2224 fps | 97.4% |
| Vihtavuori N150 | <<locked>> | 80% | 36,405 psi | 74% | 2310 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 32,416 psi | 66% | 2267 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 31,981 psi | 65% | 2270 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 86% | 29,153 psi | 59% | 2267 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,213 psi | 65% | 2247 fps | 97.7% |
| Winchester 760 | <<locked>> | 86% | 40,408 psi | 82% | 2470 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 27,093 psi | 55% | 2267 fps | 95.4% |
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 41 powders for 7 x 57 R loaded with the .284 | 162gr | RWS ID Classic. Alliant Reloder-26 delivers the highest muzzle velocity at 2,648 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,648 fps. Accurate 3100 gives the best case fill at 100 %, and 41 of the 41 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 73–90 %, leaving at least 10 % headroom. The 162.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, 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. Alliant Reloder-26, ReloadSwiss RS 70, ReloadSwiss RS 62 rank at the top here: for 7 x 57 R with the .284 | 162gr | RWS ID Classic 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.