Load Specifications
Load data in caliber 7 x 57 R with .284 | 125gr | Hasler ARIETE bullet and 63 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 SNPE Vectan SP 11.
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 2015 | <<locked>> | 82% | 42,714 psi | 87% | 2690 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 42,119 psi | 85% | 2733 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 44,599 psi | 90% | 2792 fps | 99.6% |
| Accurate 4064 | <<locked>> | 90% | 42,163 psi | 86% | 2762 fps | 99.8% |
| Accurate 4350ᴾ | <<locked>> | 100% | 43,990 psi | 89% | 2851 fps | 96% |
| ADI AR 2206H | <<locked>> | 86% | 44,512 psi | 90% | 2792 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 90% | 42,946 psi | 87% | 2743 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 84% | 44,237 psi | 90% | 2762 fps | 98.4% |
| Alliant AR-Comp | <<locked>> | 84% | 43,033 psi | 87% | 2762 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 43,540 psi | 88% | 2871 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 44,527 psi | 90% | 2812 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 88% | 42,467 psi | 86% | 2772 fps | 96.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 44,425 psi | 90% | 2864 fps | 96.1% |
| Alliant Reloder-17 | <<locked>> | 94% | 41,901 psi | 85% | 2841 fps | 97.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 43,845 psi | 89% | 2795 fps | 96.1% |
| Bofors RP3 | <<locked>> | 92% | 44,121 psi | 89% | 2815 fps | 98.3% |
| Hodgdon Benchmark | <<locked>> | 82% | 43,598 psi | 88% | 2707 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 84% | 42,163 psi | 86% | 2769 fps | 98.6% |
| Hodgdon CFE223 | <<locked>> | 82% | 43,526 psi | 88% | 2851 fps | 96.6% |
| Hodgdon H4895 | <<locked>> | 84% | 42,221 psi | 86% | 2753 fps | 97.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 40,509 psi | 82% | 2746 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 43,294 psi | 88% | 2828 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,287 psi | 70% | 1791 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 43,439 psi | 88% | 2762 fps | 97.6% |
| IMR 3031 | <<locked>> | 86% | 43,772 psi | 89% | 2812 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 42,482 psi | 86% | 2726 fps | 96.4% |
| IMR 4895 | <<locked>> | 88% | 43,497 psi | 88% | 2808 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 84% | 44,237 psi | 90% | 2762 fps | 98.4% |
| Lovex D073.6 | <<locked>> | 86% | 42,902 psi | 87% | 2772 fps | 99.4% |
| Lovex S060 | <<locked>> | 84% | 42,757 psi | 87% | 2687 fps | 97% |
| Lovex S062 | <<locked>> | 90% | 44,469 psi | 90% | 2779 fps | 98.6% |
| Norma 201 | <<locked>> | 86% | 43,366 psi | 88% | 2746 fps | 98.3% |
| Norma 202 | <<locked>> | 86% | 43,903 psi | 89% | 2766 fps | 99.8% |
| Norma 203B | <<locked>> | 90% | 44,599 psi | 90% | 2818 fps | 97.5% |
| Norma URPᴾ | <<locked>> | 100% | 44,222 psi | 90% | 2848 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 90% | 44,425 psi | 90% | 2831 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 43,381 psi | 88% | 2779 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,461 psi | 70% | 1831 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 44,498 psi | 90% | 2881 fps | 96.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 41,930 psi | 85% | 2861 fps | 99.2% |
| Rottweil R 901 | <<locked>> | 84% | 44,454 psi | 90% | 2746 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 88% | 43,961 psi | 89% | 2749 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 94% | 44,019 psi | 89% | 2805 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 86% | 42,902 psi | 87% | 2772 fps | 99.4% |
| Shooters World Precision | <<locked>> | 90% | 44,469 psi | 90% | 2779 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 43,105 psi | 87% | 2812 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 43,120 psi | 87% | 2762 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 42,685 psi | 87% | 2664 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 42,409 psi | 86% | 2667 fps | 99.9% |
| Somchem S321 | <<locked>> | 82% | 44,440 psi | 90% | 2782 fps | 98.7% |
| Somchem S335 | <<locked>> | 84% | 42,134 psi | 85% | 2667 fps | 99.9% |
| Somchem S341 | <<locked>> | 84% | 41,829 psi | 85% | 2723 fps | 96.6% |
| Somchem S355 | <<locked>> | 92% | 42,424 psi | 86% | 2762 fps | 97.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 39,334 psi | 80% | 2792 fps | 98% |
| Vihtavuori N133 | <<locked>> | 84% | 42,801 psi | 87% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 42,859 psi | 87% | 2736 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 44,338 psi | 90% | 2749 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 94% | 43,308 psi | 88% | 2749 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 84% | 44,164 psi | 90% | 2756 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 88% | 42,438 psi | 86% | 2730 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 42,206 psi | 86% | 2733 fps | 97.3% |
| Winchester 748 | <<locked>> | 84% | 43,250 psi | 88% | 2799 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 86% | 42,351 psi | 86% | 2762 fps | 97.5% |
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 2015 | <<locked>> | 80% | 39,827 psi | 81% | 2635 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 32,039 psi | 65% | 2523 fps | 99.7% |
| Accurate 2520 | <<locked>> | 80% | 38,537 psi | 78% | 2674 fps | 98.7% |
| Accurate 4064 | <<locked>> | 80% | 30,342 psi | 62% | 2497 fps | 97.5% |
| Accurate 4350 | <<locked>> | 98% | 40,828 psi | 83% | 2789 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 36,651 psi | 74% | 2625 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 88% | 40,451 psi | 82% | 2690 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 38,711 psi | 79% | 2648 fps | 97.2% |
| Alliant AR-Comp | <<locked>> | 80% | 37,666 psi | 76% | 2664 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 40,770 psi | 83% | 2808 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 34,374 psi | 70% | 2592 fps | 95.4% |
| Alliant Reloder-15 | <<locked>> | 86% | 39,697 psi | 81% | 2713 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 98% | 41,611 psi | 84% | 2802 fps | 95.1% |
| Alliant Reloder-17 | 45.9 gr | 90% | 36,477 psi | 74% | 2713 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 41,017 psi | 83% | 2736 fps | 95.2% |
| Bofors RP3 | <<locked>> | 84% | 33,533 psi | 68% | 2585 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 40,843 psi | 83% | 2651 fps | 98.2% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,796 psi | 75% | 2654 fps | 97.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 40,422 psi | 82% | 2785 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 36,883 psi | 75% | 2638 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 35,607 psi | 72% | 2635 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 35,404 psi | 72% | 2651 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,295 psi | 51% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,723 psi | 72% | 2592 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 35,723 psi | 72% | 2651 fps | 99.7% |
| IMR 4064 | <<locked>> | 86% | 39,711 psi | 81% | 2671 fps | 95.6% |
| IMR 4895 | <<locked>> | 84% | 38,247 psi | 78% | 2697 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 38,711 psi | 79% | 2648 fps | 97.2% |
| Lovex D073.6 | <<locked>> | 80% | 34,780 psi | 71% | 2602 fps | 97.8% |
| Lovex S060 | <<locked>> | 80% | 37,753 psi | 77% | 2582 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 32,343 psi | 66% | 2510 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 35,897 psi | 73% | 2582 fps | 96.4% |
| Norma 202 | <<locked>> | 80% | 35,984 psi | 73% | 2605 fps | 98.7% |
| Norma 203B | <<locked>> | 84% | 36,680 psi | 74% | 2648 fps | 95.2% |
| Norma URP | <<locked>> | 98% | 41,611 psi | 84% | 2795 fps | 95% |
| Ramshot Big Game | <<locked>> | 86% | 38,914 psi | 79% | 2717 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 37,753 psi | 77% | 2657 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,556 psi | 52% | 1637 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 38,682 psi | 78% | 2759 fps | 95.1% |
| ReloadSwiss RS 60 | 42.9 gr | 84% | 32,010 psi | 65% | 2605 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 39,421 psi | 80% | 2648 fps | 99.1% |
| Rottweil R 902 | <<locked>> | 80% | 33,968 psi | 69% | 2530 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 88% | 36,143 psi | 73% | 2641 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,780 psi | 71% | 2602 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 32,343 psi | 66% | 2510 fps | 95.2% |
| SNPE Vectan SP 11 | 44.2 gr | 88% | 37,768 psi | 77% | 2697 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 37,797 psi | 77% | 2648 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,666 psi | 76% | 2566 fps | 98.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,777 psi | 62% | 2418 fps | 98.2% |
| Somchem S321 | <<locked>> | 80% | 41,568 psi | 84% | 2730 fps | 98.2% |
| Somchem S335 | <<locked>> | 80% | 37,144 psi | 75% | 2566 fps | 99.4% |
| Somchem S341 | <<locked>> | 82% | 38,870 psi | 79% | 2661 fps | 95.7% |
| Somchem S355 | <<locked>> | 86% | 34,853 psi | 71% | 2595 fps | 95.1% |
| Somchem S365 | <<locked>> | 94% | 32,329 psi | 66% | 2615 fps | 95.3% |
| Vihtavuori N133 | <<locked>> | 80% | 37,797 psi | 77% | 2572 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,866 psi | 67% | 2533 fps | 99.7% |
| Vihtavuori N140 | <<locked>> | 80% | 33,982 psi | 69% | 2536 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 84% | 31,038 psi | 63% | 2477 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 38,479 psi | 78% | 2638 fps | 97.2% |
| Vihtavuori N540 | <<locked>> | 80% | 32,706 psi | 66% | 2520 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 36,869 psi | 75% | 2618 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 37,391 psi | 76% | 2677 fps | 97.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 34,330 psi | 70% | 2585 fps | 95% |
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 63 powders for 7 x 57 R loaded with the .284 | 125gr | Hasler ARIETE. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,881 fps; across all powders the maximum-charge window runs from 1,791 fps to 2,881 fps. Accurate 4350 gives the best case fill at 100 %, and 63 of the 63 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 125.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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, SNPE Vectan SP 11 rank at the top here: for 7 x 57 R with the .284 | 125gr | 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.