Load Specifications
Load data in caliber 7 x 57 with .284 | 142gr | Lehigh Defense Controlled Chaos bullet and 84 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>> | 84% | 50,589 psi | 89% | 2638 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 48,211 psi | 85% | 2651 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 50,125 psi | 89% | 2710 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 48,080 psi | 85% | 2687 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 50,444 psi | 89% | 2799 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 86% | 49,559 psi | 88% | 2717 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 92% | 50,256 psi | 89% | 2710 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,675 psi | 86% | 2674 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 84% | 48,646 psi | 86% | 2661 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,501 psi | 86% | 2812 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,792 psi | 88% | 2733 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 90% | 50,618 psi | 89% | 2756 fps | 99.1% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,197 psi | 87% | 2799 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 50,067 psi | 89% | 2841 fps | 99.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,896 psi | 62% | 2526 fps | 96.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 48,805 psi | 86% | 2723 fps | 98.4% |
| Bofors RP3 | <<locked>> | 92% | 49,966 psi | 88% | 2746 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 50,720 psi | 90% | 2664 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 50,850 psi | 90% | 2749 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,791 psi | 86% | 2779 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 90% | 48,037 psi | 85% | 2700 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 98% | 50,140 psi | 89% | 2789 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 86% | 49,980 psi | 88% | 2730 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,353 psi | 80% | 2684 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 48,544 psi | 86% | 2753 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,940 psi | 62% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 51,184 psi | 90% | 2733 fps | 99.6% |
| IMR 3031 | <<locked>> | 86% | 49,385 psi | 87% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,850 psi | 88% | 2697 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,169 psi | 89% | 2671 fps | 95.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,008 psi | 85% | 2740 fps | 98.2% |
| IMR 4895 | <<locked>> | 88% | 48,530 psi | 86% | 2733 fps | 99.2% |
| IMR 8208 XBR | <<locked>> | 84% | 48,675 psi | 86% | 2674 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 86% | 48,414 psi | 86% | 2694 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,806 psi | 88% | 2654 fps | 99.3% |
| Lovex S062 | <<locked>> | 90% | 49,516 psi | 88% | 2697 fps | 99.8% |
| Lovex S065 | <<locked>> | 96% | 48,863 psi | 86% | 2687 fps | 97% |
| Lovex S070 | <<locked>> | 98% | 49,211 psi | 87% | 2713 fps | 95.9% |
| Norma 201 | <<locked>> | 86% | 48,486 psi | 86% | 2667 fps | 99.7% |
| Norma 202 | <<locked>> | 86% | 48,718 psi | 86% | 2677 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,821 psi | 88% | 2743 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 50,024 psi | 88% | 2789 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 90% | 49,879 psi | 88% | 2762 fps | 99.2% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,936 psi | 87% | 2776 fps | 96.6% |
| Ramshot TAC | <<locked>> | 84% | 49,008 psi | 87% | 2680 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 48,240 psi | 85% | 2700 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,574 psi | 88% | 2671 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,288 psi | 62% | 1719 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,588 psi | 86% | 2680 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 50,314 psi | 89% | 2812 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,937 psi | 88% | 2848 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,067 psi | 89% | 2818 fps | 98.3% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,691 psi | 90% | 2838 fps | 97.9% |
| Rottweil R 901 | <<locked>> | 84% | 49,603 psi | 88% | 2661 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,820 psi | 86% | 2664 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 94% | 49,835 psi | 88% | 2736 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,863 psi | 86% | 2687 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 86% | 48,414 psi | 86% | 2694 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,516 psi | 88% | 2697 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 98% | 49,211 psi | 87% | 2713 fps | 95.9% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 48,356 psi | 85% | 2746 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 50,372 psi | 89% | 2710 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 51,053 psi | 90% | 2736 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 50,053 psi | 88% | 2618 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 49,821 psi | 88% | 2618 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 49,327 psi | 87% | 2700 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 49,559 psi | 88% | 2621 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,835 psi | 88% | 2703 fps | 99.2% |
| Somchem S355 | <<locked>> | 94% | 50,502 psi | 89% | 2736 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,469 psi | 79% | 2736 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 82% | 50,053 psi | 88% | 2592 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 50,183 psi | 89% | 2608 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 51,082 psi | 90% | 2684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 49,211 psi | 87% | 2657 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 48,588 psi | 86% | 2674 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 98% | 49,139 psi | 87% | 2736 fps | 98.2% |
| Vihtavuori N530 | <<locked>> | 84% | 48,791 psi | 86% | 2667 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 90% | 50,459 psi | 89% | 2697 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,153 psi | 85% | 2736 fps | 97.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,246 psi | 66% | 2602 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,995 psi | 88% | 2723 fps | 99.6% |
| Winchester 748 | <<locked>> | 84% | 48,370 psi | 86% | 2717 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 50,459 psi | 89% | 2795 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 88% | 50,604 psi | 89% | 2743 fps | 99.6% |
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 2015 | <<locked>> | 80% | 44,469 psi | 79% | 2543 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,231 psi | 66% | 2467 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,772 psi | 77% | 2608 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 35,201 psi | 62% | 2451 fps | 99.6% |
| Accurate 4350 | <<locked>> | 92% | 37,985 psi | 67% | 2572 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 40,959 psi | 72% | 2559 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 80% | 34,940 psi | 62% | 2411 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,004 psi | 76% | 2572 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 80% | 42,395 psi | 75% | 2566 fps | 100% |
| Alliant Power Pro 2000-MR | 40.8 gr | 80% | 36,985 psi | 65% | 2566 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,229 psi | 61% | 2431 fps | 96.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,811 psi | 65% | 2490 fps | 96.1% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,419 psi | 64% | 2533 fps | 95% |
| Alliant Reloder-17 | 42.2 gr | 84% | 33,649 psi | 59% | 2497 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,924 psi | 58% | 2477 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,900 psi | 71% | 2556 fps | 96.4% |
| Bofors RP3 | <<locked>> | 80% | 33,533 psi | 59% | 2428 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,860 psi | 79% | 2566 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,394 psi | 73% | 2589 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,600 psi | 81% | 2723 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 84% | 39,508 psi | 70% | 2539 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 96% | 47,210 psi | 83% | 2740 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 41,278 psi | 73% | 2572 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,299 psi | 55% | 2382 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,101 psi | 66% | 2533 fps | 97.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,034 psi | 46% | 1503 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,755 psi | 70% | 2526 fps | 97.9% |
| IMR 3031 | <<locked>> | 80% | 40,495 psi | 72% | 2572 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,637 psi | 65% | 2448 fps | 96.1% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,340 psi | 84% | 2621 fps | 95% |
| IMR 4831 | <<locked>> | 92% | 36,970 psi | 65% | 2533 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 37,652 psi | 67% | 2520 fps | 97% |
| IMR 8208 XBR | <<locked>> | 80% | 43,004 psi | 76% | 2572 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 39,726 psi | 70% | 2543 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 41,510 psi | 73% | 2507 fps | 97.9% |
| Lovex S062 | <<locked>> | 80% | 36,492 psi | 65% | 2454 fps | 97.9% |
| Lovex S065 | <<locked>> | 92% | 43,207 psi | 76% | 2585 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 46,427 psi | 82% | 2664 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 40,277 psi | 71% | 2520 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 40,364 psi | 71% | 2533 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 36,172 psi | 64% | 2480 fps | 96.5% |
| Norma URP | <<locked>> | 92% | 38,653 psi | 68% | 2579 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 35,578 psi | 63% | 2487 fps | 96% |
| Ramshot Hunter | <<locked>> | 96% | 43,207 psi | 76% | 2667 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 42,902 psi | 76% | 2569 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,076 psi | 74% | 2589 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,514 psi | 82% | 2618 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,440 psi | 47% | 1542 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 45,527 psi | 80% | 2628 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,985 psi | 67% | 2579 fps | 96.4% |
| ReloadSwiss RS 60 | 40.2 gr | 80% | 31,473 psi | 56% | 2451 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,869 psi | 67% | 2589 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,263 psi | 73% | 2654 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 44,063 psi | 78% | 2566 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,145 psi | 67% | 2467 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 31,633 psi | 56% | 2375 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 43,207 psi | 76% | 2585 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,726 psi | 70% | 2543 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 36,492 psi | 65% | 2454 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 96% | 46,427 psi | 82% | 2664 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 34,737 psi | 61% | 2474 fps | 95.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,988 psi | 72% | 2539 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,334 psi | 70% | 2526 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,655 psi | 74% | 2480 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,403 psi | 61% | 2349 fps | 99.7% |
| Somchem S321 | <<locked>> | 80% | 46,195 psi | 82% | 2648 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 41,321 psi | 73% | 2484 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,625 psi | 72% | 2539 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 32,692 psi | 58% | 2388 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 28,355 psi | 50% | 2359 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 47,137 psi | 83% | 2549 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,872 psi | 74% | 2480 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,289 psi | 66% | 2461 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,159 psi | 67% | 2467 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 80% | 30,980 psi | 55% | 2326 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 90% | 37,956 psi | 67% | 2526 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 42,917 psi | 76% | 2569 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 36,579 psi | 65% | 2451 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 92% | 39,711 psi | 70% | 2579 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 98% | 35,041 psi | 62% | 2552 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,589 psi | 56% | 2349 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 42,235 psi | 75% | 2608 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 47,210 psi | 83% | 2740 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,769 psi | 69% | 2530 fps | 97.8% |
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 84 powders for 7 x 57 loaded with the .284 | 142gr | Lehigh Defense Controlled Chaos. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,848 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,848 fps. Accurate 4350 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 142.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 | 142gr | 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.