Load Specifications
Load data in caliber 7 x 57 R with .284 | 145gr | Hasler ARIETE bullet and 67 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>> | 86% | 42,540 psi | 86% | 2530 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 42,786 psi | 87% | 2569 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 44,527 psi | 90% | 2661 fps | 97.5% |
| ADI AR 2206H | <<locked>> | 84% | 44,527 psi | 90% | 2592 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 88% | 43,004 psi | 87% | 2546 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 44,034 psi | 89% | 2556 fps | 99.3% |
| Alliant AR-Comp | <<locked>> | 82% | 43,598 psi | 88% | 2552 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 43,352 psi | 88% | 2671 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 42,076 psi | 85% | 2566 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,786 psi | 87% | 2582 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 98% | 44,498 psi | 90% | 2671 fps | 97.7% |
| Alliant Reloder-17 | <<locked>> | 92% | 41,887 psi | 85% | 2651 fps | 98.6% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 43,918 psi | 89% | 2598 fps | 97.5% |
| Bofors RP3 | <<locked>> | 88% | 41,611 psi | 84% | 2569 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,366 psi | 86% | 2572 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 88% | 43,149 psi | 88% | 2579 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 82% | 42,148 psi | 85% | 2552 fps | 98.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,395 psi | 88% | 2612 fps | 98.7% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 43,410 psi | 88% | 2625 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,592 psi | 70% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 43,366 psi | 88% | 2559 fps | 98.7% |
| IMR 3031 | <<locked>> | 84% | 44,135 psi | 90% | 2602 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 42,409 psi | 86% | 2530 fps | 97.7% |
| IMR 4831 | <<locked>> | 98% | 42,685 psi | 87% | 2612 fps | 97.2% |
| IMR 4895 | <<locked>> | 86% | 43,845 psi | 89% | 2612 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 82% | 44,034 psi | 89% | 2556 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 84% | 43,163 psi | 88% | 2572 fps | 99.9% |
| Lovex S060 | <<locked>> | 82% | 42,496 psi | 86% | 2487 fps | 98.2% |
| Lovex S062 | <<locked>> | 86% | 41,974 psi | 85% | 2530 fps | 99.1% |
| Lovex S065 | <<locked>> | 94% | 43,888 psi | 89% | 2566 fps | 95.8% |
| Norma 201 | <<locked>> | 84% | 43,555 psi | 88% | 2549 fps | 99.3% |
| Norma 202 | <<locked>> | 84% | 43,830 psi | 89% | 2559 fps | 100% |
| Norma 203B | <<locked>> | 86% | 42,047 psi | 85% | 2569 fps | 98.1% |
| Norma URP | <<locked>> | 96% | 41,887 psi | 85% | 2608 fps | 96.7% |
| Ramshot Big Game | <<locked>> | 88% | 44,556 psi | 90% | 2635 fps | 98.4% |
| Ramshot TAC | <<locked>> | 82% | 44,150 psi | 90% | 2556 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 82% | 43,236 psi | 88% | 2575 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,896 psi | 71% | 1683 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 41,756 psi | 85% | 2625 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 41,742 psi | 85% | 2661 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 44,527 psi | 90% | 2684 fps | 97.2% |
| Rottweil R 901 | <<locked>> | 82% | 44,556 psi | 90% | 2539 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 43,859 psi | 89% | 2546 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 90% | 41,756 psi | 85% | 2562 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 43,888 psi | 89% | 2566 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 84% | 43,163 psi | 88% | 2572 fps | 99.9% |
| Shooters World Precision | <<locked>> | 86% | 41,974 psi | 85% | 2530 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 43,453 psi | 88% | 2621 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 42,018 psi | 85% | 2526 fps | 96.1% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 43,149 psi | 88% | 2562 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,844 psi | 87% | 2467 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 42,569 psi | 86% | 2467 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,090 psi | 85% | 2464 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 41,756 psi | 85% | 2526 fps | 97.9% |
| Somchem S355 | <<locked>> | 90% | 42,670 psi | 87% | 2566 fps | 98.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,525 psi | 86% | 2664 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 82% | 43,047 psi | 87% | 2464 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 43,207 psi | 88% | 2533 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 44,222 psi | 90% | 2543 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 43,772 psi | 89% | 2556 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 96% | 44,179 psi | 90% | 2612 fps | 97.2% |
| Vihtavuori N530 | <<locked>> | 82% | 44,019 psi | 89% | 2549 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 86% | 42,569 psi | 86% | 2533 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 43,062 psi | 87% | 2608 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 41,814 psi | 85% | 2543 fps | 98.5% |
| Winchester 748 | <<locked>> | 82% | 43,352 psi | 88% | 2595 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 42,308 psi | 86% | 2566 fps | 98.6% |
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% | 34,737 psi | 70% | 2388 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 32,895 psi | 67% | 2372 fps | 99.2% |
| Accurate 4350 | <<locked>> | 92% | 35,839 psi | 73% | 2493 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 39,262 psi | 80% | 2490 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 35,578 psi | 72% | 2395 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,336 psi | 84% | 2507 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 40,669 psi | 82% | 2503 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 37,956 psi | 77% | 2556 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,489 psi | 66% | 2359 fps | 96.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,070 psi | 71% | 2418 fps | 95.5% |
| Alliant Reloder-16 | 41.3 gr | 92% | 36,927 psi | 75% | 2510 fps | 95.2% |
| Alliant Reloder-17 | 40.6 gr | 84% | 31,937 psi | 65% | 2418 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,218 psi | 78% | 2487 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 31,662 psi | 64% | 2356 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,494 psi | 80% | 2516 fps | 99% |
| Hodgdon H380 | <<locked>> | 86% | 40,176 psi | 81% | 2520 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 39,552 psi | 80% | 2500 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 31,444 psi | 64% | 2356 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,346 psi | 72% | 2461 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,643 psi | 52% | 1467 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,189 psi | 77% | 2457 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 38,537 psi | 78% | 2503 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,969 psi | 71% | 2375 fps | 95.6% |
| IMR 4831 | <<locked>> | 94% | 37,420 psi | 76% | 2507 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 35,897 psi | 73% | 2451 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 80% | 41,336 psi | 84% | 2507 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 80% | 37,536 psi | 76% | 2467 fps | 99.3% |
| Lovex S060 | <<locked>> | 80% | 39,929 psi | 81% | 2438 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 34,635 psi | 70% | 2382 fps | 97.5% |
| Lovex S065 | <<locked>> | 92% | 41,220 psi | 84% | 2513 fps | 95% |
| Norma 201 | <<locked>> | 80% | 38,334 psi | 78% | 2448 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 38,551 psi | 78% | 2464 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 34,476 psi | 70% | 2408 fps | 96% |
| Norma URP | <<locked>> | 92% | 36,825 psi | 75% | 2503 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 33,939 psi | 69% | 2415 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 41,278 psi | 84% | 2503 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,350 psi | 82% | 2520 fps | 97.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,005 psi | 53% | 1506 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 36,318 psi | 74% | 2510 fps | 95.9% |
| ReloadSwiss RS 60 | 38.7 gr | 80% | 29,892 psi | 61% | 2372 fps | 96.9% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 38,551 psi | 78% | 2569 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 41,785 psi | 85% | 2493 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,492 psi | 74% | 2402 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 29,747 psi | 60% | 2300 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,220 psi | 84% | 2513 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,536 psi | 76% | 2467 fps | 99.3% |
| Shooters World Precision | <<locked>> | 80% | 34,635 psi | 70% | 2382 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,098 psi | 67% | 2402 fps | 95.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,131 psi | 79% | 2470 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,826 psi | 77% | 2457 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,103 psi | 81% | 2418 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,938 psi | 67% | 2287 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 39,552 psi | 80% | 2418 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,928 psi | 79% | 2474 fps | 97.2% |
| Somchem S355 | <<locked>> | 80% | 30,908 psi | 63% | 2313 fps | 95.2% |
| Somchem S365 | <<locked>> | 88% | 28,732 psi | 58% | 2343 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 40,335 psi | 82% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,549 psi | 72% | 2395 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,477 psi | 74% | 2402 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 29,283 psi | 59% | 2257 fps | 96.1% |
| Vihtavuori N160 | <<locked>> | 92% | 38,566 psi | 78% | 2503 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 41,234 psi | 84% | 2500 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 34,969 psi | 71% | 2385 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 37,652 psi | 76% | 2503 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,155 psi | 65% | 2333 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 40,306 psi | 82% | 2539 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,985 psi | 75% | 2461 fps | 97.4% |
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 67 powders for 7 x 57 R loaded with the .284 | 145gr | Hasler ARIETE. ReloadSwiss RS 62 delivers the highest muzzle velocity at 2,684 fps; across all powders the maximum-charge window runs from 1,644 fps to 2,684 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 67 of the 67 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 145.0 gr projectile in 0.284" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, 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 | 145gr | Hasler ARIETE 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.