Load Specifications
Load data in caliber 7 x 57 R with .284 | 123gr | RWS Kegelspitz bullet and 58 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 Bofors RP3.
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% | 43,004 psi | 87% | 2772 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 43,120 psi | 87% | 2808 fps | 99.9% |
| Accurate 4350 | <<locked>> | 98% | 44,556 psi | 90% | 2890 fps | 96.3% |
| ADI AR 2206H | <<locked>> | 84% | 44,483 psi | 90% | 2825 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 88% | 42,975 psi | 87% | 2772 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 43,903 psi | 89% | 2785 fps | 98.5% |
| Alliant AR-Comp | <<locked>> | 82% | 43,424 psi | 88% | 2795 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 43,294 psi | 88% | 2900 fps | 96.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 42,235 psi | 86% | 2795 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 42,728 psi | 87% | 2808 fps | 96.6% |
| Alliant Reloder-16 | <<locked>> | 98% | 44,512 psi | 90% | 2900 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 92% | 41,843 psi | 85% | 2874 fps | 97.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 43,758 psi | 89% | 2825 fps | 96.2% |
| Bofors RP3 | <<locked>> | 88% | 41,829 psi | 85% | 2799 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 42,482 psi | 86% | 2805 fps | 98.7% |
| Hodgdon H4895 | <<locked>> | 82% | 42,134 psi | 85% | 2782 fps | 97.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 43,540 psi | 88% | 2841 fps | 97.8% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 43,294 psi | 88% | 2858 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,664 psi | 70% | 1827 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 43,279 psi | 88% | 2789 fps | 97.7% |
| IMR 3031 | <<locked>> | 84% | 44,063 psi | 89% | 2844 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 42,424 psi | 86% | 2756 fps | 96.6% |
| IMR 4831 | <<locked>> | 98% | 42,728 psi | 87% | 2835 fps | 95.9% |
| IMR 4895 | <<locked>> | 86% | 43,772 psi | 89% | 2841 fps | 97.5% |
| IMR 8208 XBR | <<locked>> | 82% | 43,903 psi | 89% | 2785 fps | 98.5% |
| Lovex D073.6 | <<locked>> | 84% | 43,395 psi | 88% | 2812 fps | 99.5% |
| Lovex S060 | <<locked>> | 82% | 42,467 psi | 86% | 2717 fps | 97.1% |
| Lovex S062 | <<locked>> | 86% | 42,061 psi | 85% | 2759 fps | 98.2% |
| Norma 201 | <<locked>> | 84% | 43,656 psi | 89% | 2779 fps | 98.5% |
| Norma 202 | <<locked>> | 84% | 43,700 psi | 89% | 2792 fps | 99.8% |
| Norma 203B | <<locked>> | 86% | 42,047 psi | 85% | 2799 fps | 97% |
| Ramshot Big Game | <<locked>> | 88% | 44,483 psi | 90% | 2864 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 43,178 psi | 88% | 2805 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,172 psi | 71% | 1877 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 44,599 psi | 90% | 2917 fps | 97% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 41,945 psi | 85% | 2894 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 86% | 44,150 psi | 90% | 2782 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 92% | 44,498 psi | 90% | 2844 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 43,395 psi | 88% | 2812 fps | 99.5% |
| Shooters World Precision | <<locked>> | 86% | 42,061 psi | 85% | 2759 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 43,236 psi | 88% | 2848 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 42,960 psi | 87% | 2789 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 42,569 psi | 86% | 2694 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 42,322 psi | 86% | 2694 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 42,105 psi | 85% | 2697 fps | 99.9% |
| Somchem S341 | <<locked>> | 84% | 44,585 psi | 90% | 2808 fps | 97.5% |
| Somchem S355 | <<locked>> | 90% | 42,714 psi | 87% | 2795 fps | 97.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 42,308 psi | 86% | 2887 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 82% | 42,699 psi | 87% | 2694 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 43,236 psi | 88% | 2772 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 44,266 psi | 90% | 2779 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 92% | 43,598 psi | 88% | 2782 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 96% | 44,106 psi | 89% | 2838 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 82% | 44,092 psi | 89% | 2785 fps | 98.6% |
| Vihtavuori N540 | <<locked>> | 86% | 42,598 psi | 86% | 2762 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 42,003 psi | 85% | 2762 fps | 97.5% |
| Winchester 748 | <<locked>> | 82% | 43,192 psi | 88% | 2825 fps | 99% |
| Winchester StaBALL Match | <<locked>> | 84% | 42,467 psi | 86% | 2799 fps | 97.7% |
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% | 35,273 psi | 72% | 2618 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 33,315 psi | 68% | 2592 fps | 98.5% |
| Accurate 4350 | <<locked>> | 96% | 41,568 psi | 84% | 2831 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 39,247 psi | 80% | 2713 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 40,350 psi | 82% | 2720 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,292 psi | 84% | 2733 fps | 97.9% |
| Alliant AR-Comp | <<locked>> | 80% | 40,553 psi | 82% | 2743 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 40,451 psi | 82% | 2835 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 34,650 psi | 70% | 2625 fps | 95.7% |
| Alliant Reloder-15 | <<locked>> | 84% | 39,900 psi | 81% | 2746 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 96% | 41,814 psi | 85% | 2841 fps | 95.4% |
| Alliant Reloder-17 | 47.2 gr | 88% | 36,724 psi | 74% | 2753 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 40,857 psi | 83% | 2762 fps | 95.3% |
| Bofors RP3 | 42.4 gr | 82% | 34,171 psi | 69% | 2625 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 39,624 psi | 80% | 2743 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 80% | 39,537 psi | 80% | 2726 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 35,955 psi | 73% | 2671 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,418 psi | 72% | 2677 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,831 psi | 52% | 1637 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,145 psi | 77% | 2677 fps | 96.4% |
| IMR 3031 | <<locked>> | 80% | 38,464 psi | 78% | 2736 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 39,813 psi | 81% | 2700 fps | 95.8% |
| IMR 4831 | <<locked>> | 96% | 40,059 psi | 81% | 2782 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 35,955 psi | 73% | 2667 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 41,292 psi | 84% | 2733 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 80% | 37,608 psi | 76% | 2690 fps | 98.6% |
| Lovex S060 | <<locked>> | 80% | 39,914 psi | 81% | 2661 fps | 96.4% |
| Lovex S062 | <<locked>> | 80% | 34,780 psi | 71% | 2595 fps | 96.2% |
| Norma 201 | <<locked>> | 80% | 38,508 psi | 78% | 2671 fps | 97.4% |
| Norma 202 | <<locked>> | 80% | 38,479 psi | 78% | 2687 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 36,811 psi | 75% | 2680 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 84% | 38,798 psi | 79% | 2743 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,335 psi | 82% | 2743 fps | 96.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,889 psi | 53% | 1673 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 38,885 psi | 79% | 2792 fps | 95.3% |
| ReloadSwiss RS 60 | 42.9 gr | 80% | 30,052 psi | 61% | 2572 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 36,579 psi | 74% | 2618 fps | 96.8% |
| Rottweil R 903 | <<locked>> | 84% | 34,301 psi | 70% | 2621 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,608 psi | 76% | 2690 fps | 98.6% |
| Shooters World Precision | <<locked>> | 80% | 34,780 psi | 71% | 2595 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 37,942 psi | 77% | 2730 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,739 psi | 77% | 2674 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,132 psi | 81% | 2644 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,054 psi | 67% | 2500 fps | 98.9% |
| Somchem S335 | <<locked>> | 80% | 39,595 psi | 80% | 2644 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 38,885 psi | 79% | 2690 fps | 95.9% |
| Somchem S355 | <<locked>> | 84% | 35,331 psi | 72% | 2631 fps | 95.4% |
| Somchem S365 | <<locked>> | 92% | 32,837 psi | 67% | 2654 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 40,277 psi | 82% | 2648 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,636 psi | 72% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,564 psi | 74% | 2625 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 82% | 31,560 psi | 64% | 2513 fps | 95.6% |
| Vihtavuori N160 | <<locked>> | 94% | 41,350 psi | 84% | 2782 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 41,060 psi | 83% | 2723 fps | 98% |
| Vihtavuori N540 | <<locked>> | 80% | 35,143 psi | 71% | 2605 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 36,796 psi | 75% | 2648 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 40,248 psi | 82% | 2766 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,956 psi | 75% | 2677 fps | 96.1% |
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 58 powders for 7 x 57 R loaded with the .284 | 123gr | RWS Kegelspitz. ReloadSwiss RS 52 delivers the highest muzzle velocity at 2,917 fps; across all powders the maximum-charge window runs from 1,827 fps to 2,917 fps. Hodgdon Hybrid 100V gives the best case fill at 100 %, and 58 of the 58 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 123.0 gr projectile in 0.284" calls for a 1:14.5 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, Bofors RP3 rank at the top here: for 7 x 57 R with the .284 | 123gr | RWS Kegelspitz 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.