Load Specifications
Load data in caliber 7 x 57 with .284 | 125gr | Lehigh Defense Controlled Chaos bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 86% | 50,299 psi | 89% | 2818 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 48,530 psi | 86% | 2828 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 50,734 psi | 90% | 2874 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 49,966 psi | 88% | 2887 fps | 99.9% |
| Accurate 4064 | <<locked>> | 94% | 50,662 psi | 90% | 2913 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,180 psi | 82% | 2897 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 88% | 49,226 psi | 87% | 2887 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 94% | 50,154 psi | 89% | 2881 fps | 97.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 48,834 psi | 86% | 2851 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 86% | 48,240 psi | 85% | 2844 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 48,269 psi | 85% | 2976 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 49,632 psi | 88% | 2907 fps | 99.1% |
| Alliant Reloder-10x | <<locked>> | 82% | 50,241 psi | 89% | 2825 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 50,212 psi | 89% | 2923 fps | 98.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,021 psi | 81% | 2904 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 49,908 psi | 88% | 3009 fps | 99% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 48,907 psi | 86% | 2894 fps | 97.3% |
| Bofors RP3 | <<locked>> | 94% | 49,530 psi | 88% | 2917 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 86% | 50,850 psi | 90% | 2841 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 88% | 50,546 psi | 89% | 2927 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 84% | 48,472 psi | 86% | 2953 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 82% | 48,950 psi | 87% | 2854 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 50,140 psi | 89% | 2881 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 50,995 psi | 90% | 2923 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 88% | 49,617 psi | 88% | 2900 fps | 98.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,235 psi | 75% | 2785 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 48,153 psi | 85% | 2923 fps | 99% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,679 psi | 61% | 1804 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 51,155 psi | 90% | 2907 fps | 99% |
| IMR 3031 | <<locked>> | 88% | 48,907 psi | 86% | 2900 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 49,792 psi | 88% | 2867 fps | 98.1% |
| IMR 4198 | <<locked>> | 82% | 50,720 psi | 90% | 2792 fps | 100% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,237 psi | 78% | 2841 fps | 96.2% |
| IMR 4895 | <<locked>> | 90% | 48,240 psi | 85% | 2904 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 86% | 48,834 psi | 86% | 2851 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 82% | 48,269 psi | 85% | 2831 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 88% | 48,225 psi | 85% | 2871 fps | 99.9% |
| Lovex S060 | <<locked>> | 88% | 49,893 psi | 88% | 2828 fps | 98.5% |
| Lovex S062 | <<locked>> | 92% | 49,327 psi | 87% | 2871 fps | 99.3% |
| Norma 201 | <<locked>> | 88% | 48,283 psi | 85% | 2838 fps | 99.1% |
| Norma 202 | <<locked>> | 88% | 48,370 psi | 86% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 92% | 49,371 psi | 87% | 2910 fps | 98.5% |
| Norma URPᴾ | <<locked>> | 100% | 46,050 psi | 81% | 2890 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 92% | 49,545 psi | 88% | 2933 fps | 98.3% |
| Ramshot TAC | <<locked>> | 86% | 49,052 psi | 87% | 2848 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 48,182 psi | 85% | 2874 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 84% | 49,908 psi | 88% | 2848 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,940 psi | 62% | 1844 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 48,385 psi | 86% | 2838 fps | 99.8% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 49,763 psi | 88% | 2982 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 49,603 psi | 88% | 3018 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 45,861 psi | 81% | 2913 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 86% | 49,356 psi | 87% | 2835 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 48,530 psi | 86% | 2835 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 96% | 49,400 psi | 87% | 2904 fps | 98.9% |
| Shooters World Match Rifle | <<locked>> | 88% | 48,225 psi | 85% | 2871 fps | 99.9% |
| Shooters World Precision | <<locked>> | 92% | 49,327 psi | 87% | 2871 fps | 99.3% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 51,169 psi | 90% | 2851 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 50,966 psi | 90% | 2963 fps | 98.6% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 51,068 psi | 90% | 2848 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 50,198 psi | 89% | 2874 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 51,010 psi | 90% | 2910 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 50,328 psi | 89% | 2799 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 49,937 psi | 88% | 2795 fps | 100% |
| Somchem S321 | <<locked>> | 84% | 49,414 psi | 87% | 2877 fps | 99.4% |
| Somchem S335 | <<locked>> | 88% | 49,443 psi | 87% | 2795 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 49,951 psi | 88% | 2877 fps | 98.4% |
| Somchem S355 | <<locked>> | 96% | 50,212 psi | 89% | 2907 fps | 98.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,031 psi | 73% | 2835 fps | 98.5% |
| Vihtavuori N130 | <<locked>> | 84% | 50,169 psi | 89% | 2776 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 50,314 psi | 89% | 2792 fps | 100% |
| Vihtavuori N135 | <<locked>> | 92% | 50,531 psi | 89% | 2864 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 48,747 psi | 86% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 48,341 psi | 85% | 2841 fps | 99.5% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 48,704 psi | 86% | 2894 fps | 96.9% |
| Vihtavuori N530 | <<locked>> | 86% | 48,936 psi | 87% | 2844 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 92% | 50,328 psi | 89% | 2874 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,848 psi | 85% | 2900 fps | 96.6% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 49,821 psi | 88% | 2881 fps | 98.9% |
| Winchester 748 | <<locked>> | 86% | 47,906 psi | 85% | 2887 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 90% | 50,604 psi | 89% | 2920 fps | 99% |
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% | 41,800 psi | 74% | 2674 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,455 psi | 80% | 2772 fps | 99.8% |
| Accurate 2495 | <<locked>> | 80% | 34,156 psi | 60% | 2569 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 40,437 psi | 71% | 2713 fps | 99.1% |
| Accurate 4064 | <<locked>> | 80% | 32,285 psi | 57% | 2546 fps | 98.2% |
| Accurate 4350 | <<locked>> | 98% | 42,960 psi | 76% | 2835 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 38,348 psi | 68% | 2664 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 86% | 39,334 psi | 70% | 2671 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,321 psi | 71% | 2687 fps | 97.7% |
| Alliant AR-Comp | <<locked>> | 80% | 39,276 psi | 69% | 2697 fps | 100% |
| Alliant Power Pro 2000-MR | 45.3 gr | 86% | 42,163 psi | 75% | 2844 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 33,750 psi | 60% | 2579 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,050 psi | 83% | 2776 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 39,044 psi | 69% | 2700 fps | 95.4% |
| Alliant Reloder-16 | <<locked>> | 98% | 43,207 psi | 76% | 2841 fps | 95.8% |
| Alliant Reloder-17 | 45.7 gr | 88% | 35,752 psi | 63% | 2697 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 42,525 psi | 75% | 2772 fps | 95.8% |
| Bofors RP3 | <<locked>> | 82% | 33,083 psi | 58% | 2575 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,409 psi | 75% | 2687 fps | 98.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,537 psi | 68% | 2697 fps | 97.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,293 psi | 75% | 2831 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 80% | 45,818 psi | 81% | 2802 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,717 psi | 83% | 2822 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 44,759 psi | 79% | 2808 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 38,595 psi | 68% | 2680 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 37,275 psi | 66% | 2677 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,403 psi | 61% | 2628 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,585 psi | 45% | 1608 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,260 psi | 66% | 2631 fps | 96% |
| IMR 3031 | <<locked>> | 80% | 37,304 psi | 66% | 2687 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 38,682 psi | 68% | 2648 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 47,732 psi | 84% | 2746 fps | 100% |
| IMR 4831 | <<locked>> | 98% | 41,336 psi | 73% | 2782 fps | 95.4% |
| IMR 4895 | <<locked>> | 82% | 37,420 psi | 66% | 2677 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 40,321 psi | 71% | 2687 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 80% | 45,252 psi | 80% | 2776 fps | 99.3% |
| Lovex D073.6 | <<locked>> | 80% | 36,666 psi | 65% | 2644 fps | 98.3% |
| Lovex S060 | <<locked>> | 80% | 39,015 psi | 69% | 2612 fps | 96% |
| Lovex S062 | <<locked>> | 80% | 33,866 psi | 60% | 2549 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 37,507 psi | 66% | 2625 fps | 97% |
| Norma 202 | <<locked>> | 80% | 37,463 psi | 66% | 2638 fps | 99% |
| Norma 203B | <<locked>> | 82% | 35,911 psi | 63% | 2635 fps | 95% |
| Norma URP | <<locked>> | 98% | 43,395 psi | 77% | 2838 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 84% | 37,913 psi | 67% | 2697 fps | 95.3% |
| Ramshot TAC | <<locked>> | 84% | 45,905 psi | 81% | 2789 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,305 psi | 69% | 2697 fps | 96% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,801 psi | 77% | 2733 fps | 97.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,889 psi | 46% | 1650 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,368 psi | 80% | 2782 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 40,364 psi | 71% | 2799 fps | 95.8% |
| ReloadSwiss RS 60 | 42.6 gr | 82% | 31,328 psi | 55% | 2585 fps | 95.7% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 42,873 psi | 76% | 2851 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 41,278 psi | 73% | 2684 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 80% | 35,824 psi | 63% | 2575 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 86% | 35,520 psi | 63% | 2628 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,666 psi | 65% | 2644 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 33,866 psi | 60% | 2549 fps | 95.8% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 47,950 psi | 85% | 2795 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,811 psi | 65% | 2677 fps | 95% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,747 psi | 84% | 2795 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 43,816 psi | 77% | 2759 fps | 95.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,912 psi | 65% | 2631 fps | 95.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,088 psi | 69% | 2595 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,126 psi | 57% | 2454 fps | 98.6% |
| Somchem S321 | <<locked>> | 80% | 43,250 psi | 76% | 2766 fps | 98.6% |
| Somchem S335 | <<locked>> | 80% | 38,653 psi | 68% | 2598 fps | 99.6% |
| Somchem S341 | <<locked>> | 80% | 37,869 psi | 67% | 2644 fps | 95.5% |
| Somchem S355 | <<locked>> | 84% | 34,476 psi | 61% | 2585 fps | 95% |
| Somchem S365 | <<locked>> | 92% | 31,894 psi | 56% | 2605 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 44,338 psi | 78% | 2680 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,204 psi | 69% | 2602 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,519 psi | 61% | 2572 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 35,607 psi | 63% | 2575 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 82% | 30,545 psi | 54% | 2464 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 96% | 42,728 psi | 76% | 2782 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 40,147 psi | 71% | 2677 fps | 97.7% |
| Vihtavuori N540 | <<locked>> | 80% | 34,098 psi | 60% | 2556 fps | 98.1% |
| Vihtavuori N550 | <<locked>> | 98% | 44,556 psi | 79% | 2838 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 35,839 psi | 63% | 2595 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 39,030 psi | 69% | 2717 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,897 psi | 63% | 2625 fps | 95.7% |
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 81 powders for 7 x 57 loaded with the .284 | 125gr | Lehigh Defense Controlled Chaos. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,018 fps; across all powders the maximum-charge window runs from 1,804 fps to 3,018 fps. Accurate 4350 gives the best case fill at 100 %, and 81 of the 81 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.284" calls for a 1:10.0 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 7 x 57 with the .284 | 125gr | Lehigh Defense Controlled Chaos 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.