Load Specifications
Load data in caliber 7 x 57 R with .284 | 125gr | Norma Bondstrike bullet and 59 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 2495 | <<locked>> | 86% | 42,264 psi | 86% | 2730 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 43,816 psi | 89% | 2779 fps | 99.5% |
| Accurate 4064 | <<locked>> | 88% | 42,163 psi | 86% | 2762 fps | 99.8% |
| Accurate 4350 | <<locked>> | 98% | 43,613 psi | 88% | 2844 fps | 96% |
| ADI AR 2206H | <<locked>> | 84% | 43,859 psi | 89% | 2782 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 88% | 42,148 psi | 85% | 2726 fps | 96.2% |
| ADI Benchmark 8208 | <<locked>> | 82% | 43,250 psi | 88% | 2743 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 82% | 42,496 psi | 86% | 2749 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 44,164 psi | 90% | 2805 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 86% | 41,901 psi | 85% | 2759 fps | 96.3% |
| Alliant Reloder-16 | <<locked>> | 98% | 43,714 psi | 89% | 2851 fps | 96% |
| Alliant Reloder-17 | <<locked>> | 94% | 44,063 psi | 89% | 2894 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 43,033 psi | 87% | 2779 fps | 96% |
| Bofors RP3 | <<locked>> | 90% | 43,859 psi | 89% | 2812 fps | 98.3% |
| Hodgdon BL-C2 | <<locked>> | 84% | 44,454 psi | 90% | 2815 fps | 99% |
| Hodgdon H4895 | <<locked>> | 84% | 44,179 psi | 90% | 2795 fps | 98% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,482 psi | 86% | 2789 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 42,554 psi | 86% | 2812 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,577 psi | 70% | 1801 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 42,656 psi | 87% | 2746 fps | 97.6% |
| IMR 3031 | <<locked>> | 84% | 43,221 psi | 88% | 2799 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 44,280 psi | 90% | 2762 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,512 psi | 90% | 2844 fps | 96.4% |
| IMR 4895 | <<locked>> | 86% | 42,917 psi | 87% | 2795 fps | 97.2% |
| IMR 8208 XBR | <<locked>> | 82% | 43,250 psi | 88% | 2743 fps | 98.3% |
| Lovex D073.6 | <<locked>> | 84% | 42,496 psi | 86% | 2762 fps | 99.4% |
| Lovex S060 | <<locked>> | 84% | 44,498 psi | 90% | 2726 fps | 97.5% |
| Lovex S062 | <<locked>> | 88% | 43,918 psi | 89% | 2769 fps | 98.6% |
| Norma 201 | <<locked>> | 84% | 42,946 psi | 87% | 2736 fps | 98.4% |
| Norma 202 | <<locked>> | 84% | 43,033 psi | 87% | 2749 fps | 99.7% |
| Norma 203B | <<locked>> | 88% | 43,976 psi | 89% | 2805 fps | 97.5% |
| Norma URP | <<locked>> | 98% | 43,642 psi | 89% | 2838 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 88% | 43,584 psi | 88% | 2815 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 42,424 psi | 86% | 2756 fps | 97% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,099 psi | 71% | 1847 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 43,743 psi | 89% | 2867 fps | 96.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 43,830 psi | 89% | 2904 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 82% | 44,266 psi | 90% | 2740 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 86% | 43,468 psi | 88% | 2736 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 92% | 43,772 psi | 89% | 2799 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 84% | 42,496 psi | 86% | 2762 fps | 99.4% |
| Shooters World Precision | <<locked>> | 88% | 43,918 psi | 89% | 2769 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 42,366 psi | 86% | 2799 fps | 96.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,467 psi | 86% | 2749 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,047 psi | 85% | 2651 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 44,541 psi | 90% | 2703 fps | 100% |
| Somchem S335 | <<locked>> | 84% | 44,121 psi | 89% | 2703 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 43,888 psi | 89% | 2766 fps | 97.3% |
| Somchem S355 | <<locked>> | 90% | 41,916 psi | 85% | 2749 fps | 97.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,597 psi | 84% | 2841 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 82% | 42,163 psi | 86% | 2654 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 42,453 psi | 86% | 2730 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 43,337 psi | 88% | 2733 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 92% | 42,844 psi | 87% | 2740 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 82% | 43,468 psi | 88% | 2743 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 88% | 44,570 psi | 90% | 2772 fps | 99.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 44,106 psi | 89% | 2776 fps | 97.9% |
| Winchester 748 | <<locked>> | 82% | 42,308 psi | 86% | 2779 fps | 98.9% |
| Winchester StaBALL Match | <<locked>> | 86% | 44,469 psi | 90% | 2805 fps | 98.1% |
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% | 34,693 psi | 70% | 2579 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 40,988 psi | 83% | 2723 fps | 99.2% |
| Accurate 4064 | <<locked>> | 80% | 32,808 psi | 67% | 2556 fps | 98.3% |
| Accurate 4350 | <<locked>> | 96% | 40,625 psi | 82% | 2785 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 38,566 psi | 78% | 2667 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 86% | 39,581 psi | 80% | 2671 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,567 psi | 82% | 2687 fps | 97.8% |
| Alliant AR-Comp | <<locked>> | 80% | 39,610 psi | 80% | 2700 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 34,243 psi | 69% | 2589 fps | 95.5% |
| Alliant Reloder-15 | <<locked>> | 84% | 39,262 psi | 80% | 2703 fps | 95.5% |
| Alliant Reloder-16 | <<locked>> | 96% | 41,060 psi | 83% | 2792 fps | 95.1% |
| Alliant Reloder-17 | 45.8 gr | 88% | 35,969 psi | 73% | 2700 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 40,132 psi | 81% | 2720 fps | 95.1% |
| Bofors RP3 | <<locked>> | 82% | 33,562 psi | 68% | 2582 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,812 psi | 79% | 2697 fps | 97.9% |
| Hodgdon H4895 | <<locked>> | 80% | 38,870 psi | 79% | 2680 fps | 96.6% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 35,375 psi | 72% | 2628 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,853 psi | 71% | 2635 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,759 psi | 52% | 1611 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,478 psi | 76% | 2635 fps | 96.1% |
| IMR 3031 | <<locked>> | 80% | 37,884 psi | 77% | 2694 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 39,175 psi | 79% | 2657 fps | 95.6% |
| IMR 4831 | <<locked>> | 98% | 41,611 psi | 84% | 2785 fps | 95.5% |
| IMR 4895 | <<locked>> | 82% | 37,637 psi | 76% | 2680 fps | 95.7% |
| IMR 8208 XBR | <<locked>> | 80% | 40,567 psi | 82% | 2687 fps | 97.8% |
| Lovex D073.6 | <<locked>> | 80% | 36,941 psi | 75% | 2648 fps | 98.4% |
| Lovex S060 | <<locked>> | 80% | 39,233 psi | 80% | 2615 fps | 96.2% |
| Lovex S062 | <<locked>> | 80% | 34,069 psi | 69% | 2552 fps | 96% |
| Norma 201 | <<locked>> | 80% | 37,971 psi | 77% | 2631 fps | 97.2% |
| Norma 202 | <<locked>> | 80% | 37,985 psi | 77% | 2644 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 36,187 psi | 73% | 2635 fps | 95.1% |
| Norma URP | <<locked>> | 96% | 40,872 psi | 83% | 2779 fps | 95% |
| Ramshot Big Game | <<locked>> | 84% | 38,159 psi | 77% | 2700 fps | 95.5% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,566 psi | 80% | 2697 fps | 96.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,831 psi | 52% | 1647 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 37,985 psi | 77% | 2740 fps | 95% |
| ReloadSwiss RS 60 | 42.7 gr | 82% | 31,531 psi | 64% | 2592 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 41,568 psi | 84% | 2687 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 36,056 psi | 73% | 2579 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 84% | 33,692 psi | 68% | 2579 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,941 psi | 75% | 2648 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 34,069 psi | 69% | 2552 fps | 96% |
| SNPE Vectan SP 11 | 44.1 gr | 86% | 37,289 psi | 76% | 2684 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,144 psi | 75% | 2631 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,610 psi | 80% | 2605 fps | 99.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,547 psi | 66% | 2461 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 39,131 psi | 79% | 2608 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 38,130 psi | 77% | 2644 fps | 95.6% |
| Somchem S355 | <<locked>> | 84% | 34,737 psi | 70% | 2589 fps | 95.2% |
| Somchem S365 | <<locked>> | 92% | 32,097 psi | 65% | 2608 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 39,726 psi | 81% | 2608 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,012 psi | 71% | 2579 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 35,868 psi | 73% | 2579 fps | 99% |
| Vihtavuori N150 | <<locked>> | 82% | 30,980 psi | 63% | 2474 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 40,654 psi | 82% | 2687 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 80% | 34,505 psi | 70% | 2562 fps | 98.3% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 36,245 psi | 74% | 2605 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 39,610 psi | 80% | 2723 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,390 psi | 74% | 2635 fps | 95.9% |
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 59 powders for 7 x 57 R loaded with the .284 | 125gr | Norma Bondstrike. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,904 fps; across all powders the maximum-charge window runs from 1,801 fps to 2,904 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 59 of the 59 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 1:11.5 twist; slower twists will usually not stabilise this weight. Hodgdon Hybrid 100V, Hodgdon TrailBoss, IMR 4831 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 | Norma Bondstrike 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.