Load Specifications
Load data in caliber 7 x 57 R with .284 | 150gr | Norma Soft Point bullet and 47 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, 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>> | 82% | 43,888 psi | 89% | 2516 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 44,237 psi | 90% | 2559 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 42,960 psi | 87% | 2612 fps | 98% |
| ADI AR 2208 | <<locked>> | 84% | 43,033 psi | 87% | 2530 fps | 98.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 43,497 psi | 88% | 2661 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 42,612 psi | 86% | 2552 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 82% | 43,033 psi | 87% | 2562 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,351 psi | 86% | 2621 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 88% | 42,192 psi | 86% | 2641 fps | 99.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,740 psi | 79% | 2572 fps | 98.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,105 psi | 87% | 2723 fps | 97.7% |
| Bofors RP3 | <<locked>> | 84% | 42,380 psi | 86% | 2556 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 84% | 43,352 psi | 88% | 2562 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 44,266 psi | 90% | 2608 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 43,787 psi | 89% | 2608 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,476 psi | 72% | 1660 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 42,409 psi | 86% | 2510 fps | 98.5% |
| IMR 4831 | <<locked>> | 94% | 43,976 psi | 89% | 2615 fps | 98.3% |
| IMR 4895 | <<locked>> | 82% | 44,063 psi | 89% | 2592 fps | 99.1% |
| Lovex S062 | <<locked>> | 82% | 42,380 psi | 86% | 2516 fps | 99.6% |
| Lovex S065 | <<locked>> | 90% | 44,396 psi | 90% | 2556 fps | 96.9% |
| Norma 203B | <<locked>> | 82% | 42,351 psi | 86% | 2552 fps | 98.8% |
| Norma URP | <<locked>> | 92% | 42,873 psi | 87% | 2608 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 82% | 42,090 psi | 85% | 2569 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 94% | 44,556 psi | 90% | 2648 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,868 psi | 73% | 1696 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,830 psi | 89% | 2546 fps | 96% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 42,206 psi | 86% | 2651 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 42,627 psi | 86% | 2631 fps | 97.7% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,656 psi | 87% | 2641 fps | 97% |
| Rottweil R 902 | <<locked>> | 82% | 44,208 psi | 90% | 2530 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 86% | 42,511 psi | 86% | 2552 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 44,396 psi | 90% | 2556 fps | 96.9% |
| Shooters World Precision | <<locked>> | 82% | 42,380 psi | 86% | 2516 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 43,845 psi | 89% | 2608 fps | 99% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 42,453 psi | 86% | 2444 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 43,424 psi | 88% | 2559 fps | 99.3% |
| Somchem S365 | <<locked>> | 96% | 43,555 psi | 88% | 2664 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 43,859 psi | 89% | 2510 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 44,541 psi | 90% | 2523 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 44,106 psi | 89% | 2539 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 90% | 42,061 psi | 85% | 2556 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 82% | 42,830 psi | 87% | 2513 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 44,150 psi | 90% | 2612 fps | 97.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,279 psi | 86% | 2648 fps | 98.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 41,974 psi | 85% | 2536 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,606 psi | 70% | 2566 fps | 98.2% |
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% | 41,060 psi | 83% | 2470 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 38,798 psi | 79% | 2464 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,940 psi | 71% | 2448 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 37,884 psi | 77% | 2428 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,495 psi | 82% | 2602 fps | 97.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,434 psi | 76% | 2448 fps | 98.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,350 psi | 82% | 2513 fps | 98% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,230 psi | 71% | 2461 fps | 95.9% |
| Alliant Reloder-17 | 41.8 gr | 80% | 32,300 psi | 66% | 2415 fps | 96.5% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,342 psi | 62% | 2362 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,565 psi | 76% | 2598 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 37,115 psi | 75% | 2454 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 80% | 38,116 psi | 77% | 2457 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,255 psi | 61% | 2306 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,031 psi | 83% | 2559 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 53% | 1480 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,784 psi | 81% | 2461 fps | 97.9% |
| IMR 4831 | <<locked>> | 86% | 33,823 psi | 69% | 2405 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 41,307 psi | 84% | 2539 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 39,740 psi | 81% | 2464 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 39,436 psi | 80% | 2461 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 39,697 psi | 81% | 2500 fps | 98.3% |
| Norma URP | <<locked>> | 86% | 35,172 psi | 71% | 2448 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 39,175 psi | 79% | 2510 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 92% | 41,858 psi | 85% | 2592 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,774 psi | 54% | 1516 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,944 psi | 83% | 2490 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,360 psi | 70% | 2480 fps | 99.3% |
| ReloadSwiss RS 62 | 44.9 gr | 86% | 34,548 psi | 70% | 2457 fps | 95.1% |
| ReloadSwiss RS 70 | 46.8 gr | 88% | 37,376 psi | 76% | 2526 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 41,713 psi | 85% | 2484 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 35,070 psi | 71% | 2402 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,436 psi | 80% | 2461 fps | 95.6% |
| Shooters World Precision | <<locked>> | 80% | 39,740 psi | 81% | 2464 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,911 psi | 73% | 2448 fps | 97.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,420 psi | 76% | 2356 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 35,781 psi | 73% | 2405 fps | 97.8% |
| Somchem S365 | <<locked>> | 80% | 26,034 psi | 53% | 2241 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 41,031 psi | 83% | 2464 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,771 psi | 85% | 2474 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,171 psi | 69% | 2349 fps | 98.5% |
| Vihtavuori N160 | <<locked>> | 84% | 34,534 psi | 70% | 2398 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 40,219 psi | 82% | 2467 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,187 psi | 73% | 2451 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 92% | 32,561 psi | 66% | 2438 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,153 psi | 61% | 2270 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,400 psi | 62% | 2438 fps | 96% |
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 47 powders for 7 x 57 R loaded with the .284 | 150gr | Norma Soft Point. Alliant Reloder-26 delivers the highest muzzle velocity at 2,723 fps; across all powders the maximum-charge window runs from 1,660 fps to 2,723 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 47 of the 47 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:12.5 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. ReloadSwiss RS 70, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 7 x 57 R with the .284 | 150gr | Norma Soft Point 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.