Load Specifications
Load data in caliber 7 x 57 with .284 | 145gr | Fox Classic Hunter bullet and 86 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.
A valid access license is required to use the Personalized Load Calculator.
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% | 49,719 psi | 88% | 2605 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 50,430 psi | 89% | 2661 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 49,632 psi | 88% | 2684 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 50,676 psi | 90% | 2707 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,734 psi | 88% | 2766 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 86% | 48,907 psi | 86% | 2684 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 92% | 50,053 psi | 88% | 2687 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 84% | 48,414 psi | 86% | 2648 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 84% | 48,341 psi | 85% | 2635 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,327 psi | 85% | 2785 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,501 psi | 88% | 2707 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 90% | 50,328 psi | 89% | 2730 fps | 99.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,037 psi | 87% | 2776 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,864 psi | 88% | 2815 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,403 psi | 61% | 2500 fps | 96.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 48,617 psi | 86% | 2697 fps | 98.5% |
| Bofors RP3 | <<locked>> | 92% | 49,516 psi | 88% | 2720 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 50,473 psi | 89% | 2638 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 50,183 psi | 89% | 2720 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 48,588 psi | 86% | 2756 fps | 99% |
| Hodgdon H380 | <<locked>> | 92% | 51,010 psi | 90% | 2730 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 98% | 49,966 psi | 88% | 2766 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 86% | 49,327 psi | 87% | 2697 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 45,078 psi | 80% | 2657 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 48,327 psi | 85% | 2726 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,795 psi | 62% | 1663 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 50,995 psi | 90% | 2707 fps | 99.7% |
| IMR 3031 | <<locked>> | 86% | 49,095 psi | 87% | 2694 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,617 psi | 88% | 2671 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,937 psi | 88% | 2648 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,313 psi | 87% | 2667 fps | 95.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,355 psi | 84% | 2710 fps | 98.3% |
| IMR 4895 | <<locked>> | 88% | 48,225 psi | 85% | 2703 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 84% | 48,414 psi | 86% | 2648 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 86% | 47,935 psi | 85% | 2664 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,226 psi | 87% | 2625 fps | 99.3% |
| Lovex S062 | <<locked>> | 90% | 49,124 psi | 87% | 2671 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 48,167 psi | 85% | 2657 fps | 97.1% |
| Lovex S070 | <<locked>> | 98% | 48,820 psi | 86% | 2687 fps | 96.1% |
| Norma 201 | <<locked>> | 88% | 50,952 psi | 90% | 2687 fps | 99.9% |
| Norma 202 | <<locked>> | 86% | 48,356 psi | 85% | 2648 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,516 psi | 88% | 2717 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 49,487 psi | 87% | 2759 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 90% | 49,676 psi | 88% | 2740 fps | 99.3% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,733 psi | 86% | 2753 fps | 96.8% |
| Ramshot TAC | <<locked>> | 84% | 48,385 psi | 86% | 2651 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 47,645 psi | 84% | 2671 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 49,269 psi | 87% | 2644 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,099 psi | 62% | 1703 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 51,068 psi | 90% | 2680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,269 psi | 85% | 2657 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 50,111 psi | 89% | 2785 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,763 psi | 88% | 2822 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,516 psi | 88% | 2789 fps | 98.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 50,488 psi | 89% | 2815 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 84% | 48,849 psi | 86% | 2628 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,283 psi | 85% | 2638 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 49,400 psi | 87% | 2710 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,167 psi | 85% | 2657 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 47,935 psi | 85% | 2664 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,124 psi | 87% | 2671 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 48,820 psi | 86% | 2687 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 51,169 psi | 90% | 2769 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,676 psi | 88% | 2677 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 50,807 psi | 90% | 2713 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 49,734 psi | 88% | 2592 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 49,545 psi | 88% | 2589 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 48,950 psi | 87% | 2674 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 49,153 psi | 87% | 2595 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,588 psi | 88% | 2677 fps | 99.3% |
| Somchem S355 | <<locked>> | 94% | 50,111 psi | 89% | 2710 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 44,135 psi | 78% | 2710 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 82% | 49,705 psi | 88% | 2562 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 49,937 psi | 88% | 2582 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 50,720 psi | 90% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 48,617 psi | 86% | 2628 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 48,298 psi | 85% | 2648 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 98% | 48,907 psi | 86% | 2710 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 84% | 48,501 psi | 86% | 2641 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 90% | 50,169 psi | 89% | 2671 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 47,877 psi | 85% | 2713 fps | 98% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,753 psi | 65% | 2575 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,821 psi | 88% | 2700 fps | 99.7% |
| Winchester 748 | <<locked>> | 84% | 48,066 psi | 85% | 2690 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 50,285 psi | 89% | 2769 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 50,328 psi | 89% | 2717 fps | 99.7% |
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 2015 | <<locked>> | 80% | 43,918 psi | 78% | 2516 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,926 psi | 64% | 2425 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,236 psi | 76% | 2579 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 34,011 psi | 60% | 2411 fps | 99.5% |
| Accurate 4350 | <<locked>> | 90% | 35,012 psi | 62% | 2490 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 40,495 psi | 72% | 2533 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 34,548 psi | 61% | 2388 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,627 psi | 75% | 2546 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 42,018 psi | 74% | 2539 fps | 100% |
| Alliant Power Pro 2000-MR | 40.8 gr | 80% | 36,579 psi | 65% | 2543 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,707 psi | 60% | 2405 fps | 96.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,303 psi | 64% | 2464 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 90% | 35,810 psi | 63% | 2503 fps | 95.1% |
| Alliant Reloder-17 | 41.2 gr | 82% | 31,067 psi | 55% | 2411 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 98% | 32,430 psi | 57% | 2448 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,537 psi | 70% | 2530 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 32,866 psi | 58% | 2398 fps | 96.8% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,541 psi | 79% | 2539 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,944 psi | 72% | 2559 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,034 psi | 80% | 2694 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 84% | 39,001 psi | 69% | 2513 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 46,644 psi | 82% | 2710 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 40,857 psi | 72% | 2543 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 30,574 psi | 54% | 2349 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,724 psi | 65% | 2507 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,860 psi | 46% | 1486 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,436 psi | 70% | 2500 fps | 98.1% |
| IMR 3031 | <<locked>> | 80% | 40,074 psi | 71% | 2546 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,201 psi | 64% | 2418 fps | 96.2% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,079 psi | 83% | 2598 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 92% | 46,499 psi | 82% | 2615 fps | 95% |
| IMR 4831 | <<locked>> | 92% | 36,260 psi | 64% | 2500 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 37,173 psi | 66% | 2493 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 80% | 42,627 psi | 75% | 2546 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 38,885 psi | 69% | 2510 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 40,901 psi | 72% | 2477 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 35,650 psi | 63% | 2418 fps | 97.9% |
| Lovex S065 | <<locked>> | 92% | 42,728 psi | 76% | 2559 fps | 95.7% |
| Lovex S070 | <<locked>> | 96% | 45,687 psi | 81% | 2635 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 39,363 psi | 70% | 2484 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 39,900 psi | 71% | 2503 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 35,665 psi | 63% | 2451 fps | 96.6% |
| Norma URP | <<locked>> | 90% | 35,679 psi | 63% | 2493 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 35,157 psi | 62% | 2461 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 96% | 42,656 psi | 75% | 2641 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 42,540 psi | 75% | 2546 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,698 psi | 74% | 2562 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,180 psi | 82% | 2595 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,962 psi | 46% | 1519 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,761 psi | 84% | 2628 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 45,194 psi | 80% | 2605 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,579 psi | 66% | 2552 fps | 96.6% |
| ReloadSwiss RS 60 | 40.1 gr | 80% | 30,777 psi | 54% | 2415 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,463 psi | 66% | 2562 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,959 psi | 72% | 2631 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 43,323 psi | 77% | 2536 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,507 psi | 66% | 2438 fps | 98.3% |
| Rottweil R 903 | <<locked>> | 80% | 30,951 psi | 55% | 2346 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,728 psi | 76% | 2559 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,885 psi | 69% | 2510 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 35,650 psi | 63% | 2418 fps | 97.9% |
| Shooters World SW4350 | <<locked>> | 96% | 45,687 psi | 81% | 2635 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,068 psi | 57% | 2392 fps | 95% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,495 psi | 72% | 2513 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,943 psi | 69% | 2497 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,220 psi | 73% | 2454 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,968 psi | 60% | 2323 fps | 99.7% |
| Somchem S321 | <<locked>> | 80% | 45,832 psi | 81% | 2621 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 40,553 psi | 72% | 2454 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,277 psi | 71% | 2516 fps | 97.8% |
| Somchem S355 | <<locked>> | 80% | 31,850 psi | 56% | 2352 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 27,789 psi | 49% | 2329 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 46,775 psi | 83% | 2520 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,495 psi | 73% | 2454 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,782 psi | 65% | 2431 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,724 psi | 67% | 2441 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 30,414 psi | 54% | 2300 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 90% | 37,594 psi | 66% | 2500 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 42,511 psi | 75% | 2539 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 36,114 psi | 64% | 2425 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 36,709 psi | 65% | 2497 fps | 95% |
| Vihtavuori N555 | <<locked>> | 98% | 34,490 psi | 61% | 2523 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 30,922 psi | 55% | 2320 fps | 95.2% |
| Winchester 748 | <<locked>> | 80% | 41,887 psi | 74% | 2585 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 46,978 psi | 83% | 2713 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,392 psi | 68% | 2503 fps | 98% |
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 86 powders for 7 x 57 loaded with the .284 | 145gr | Fox Classic Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,822 fps; across all powders the maximum-charge window runs from 1,663 fps to 2,822 fps. Accurate 4350 gives the best case fill at 100 %, and 86 of the 86 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 145.0 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, 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 | 145gr | Fox Classic Hunter 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.