Load Specifications
Load data in caliber 7 x 57 with .284 | 139gr | Hornady SST 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.
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% | 51,184 psi | 90% | 2684 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 48,965 psi | 87% | 2700 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 50,807 psi | 90% | 2759 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 49,139 psi | 87% | 2743 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 47,892 psi | 85% | 2795 fps | 98.1% |
| ADI AR 2206H | <<locked>> | 86% | 50,256 psi | 89% | 2766 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 92% | 51,126 psi | 90% | 2766 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 84% | 49,443 psi | 87% | 2723 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 84% | 49,313 psi | 87% | 2710 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 49,197 psi | 87% | 2864 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 50,705 psi | 90% | 2785 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 88% | 48,008 psi | 85% | 2749 fps | 98.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 50,053 psi | 88% | 2854 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 50,836 psi | 90% | 2894 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,534 psi | 63% | 2579 fps | 96.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 49,574 psi | 88% | 2772 fps | 98.5% |
| Bofors RP3 | <<locked>> | 92% | 50,792 psi | 90% | 2799 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 51,169 psi | 90% | 2710 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 48,167 psi | 85% | 2746 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 49,400 psi | 87% | 2831 fps | 98.9% |
| Hodgdon H380 | <<locked>> | 90% | 48,791 psi | 86% | 2753 fps | 97.8% |
| Hodgdon H414 | <<locked>> | 98% | 50,952 psi | 90% | 2841 fps | 96.1% |
| Hodgdon H4895 | <<locked>> | 86% | 50,691 psi | 90% | 2779 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,296 psi | 82% | 2736 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 49,414 psi | 87% | 2805 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,983 psi | 62% | 1713 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 48,588 psi | 86% | 2726 fps | 99.4% |
| IMR 3031 | <<locked>> | 86% | 49,980 psi | 88% | 2769 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 50,459 psi | 89% | 2746 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,995 psi | 90% | 2723 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 94% | 50,502 psi | 89% | 2746 fps | 95.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,921 psi | 86% | 2792 fps | 98.4% |
| IMR 4895 | <<locked>> | 88% | 49,197 psi | 87% | 2782 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 84% | 49,443 psi | 87% | 2723 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 86% | 49,414 psi | 87% | 2749 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 50,212 psi | 89% | 2700 fps | 99.3% |
| Lovex S062 | <<locked>> | 90% | 50,198 psi | 89% | 2746 fps | 99.8% |
| Lovex S065 | <<locked>> | 96% | 49,559 psi | 88% | 2740 fps | 97.1% |
| Lovex S070 | <<locked>> | 98% | 50,125 psi | 89% | 2766 fps | 96.1% |
| Norma 201 | <<locked>> | 86% | 48,907 psi | 86% | 2713 fps | 99.7% |
| Norma 202 | <<locked>> | 86% | 49,458 psi | 87% | 2726 fps | 100% |
| Norma 203B | <<locked>> | 90% | 50,372 psi | 89% | 2792 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 50,662 psi | 90% | 2838 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 90% | 50,546 psi | 89% | 2812 fps | 99.3% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,879 psi | 88% | 2831 fps | 96.8% |
| Ramshot TAC | <<locked>> | 84% | 49,472 psi | 87% | 2726 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 48,791 psi | 86% | 2749 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 50,125 psi | 89% | 2720 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,607 psi | 63% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 49,255 psi | 87% | 2733 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 47,587 psi | 84% | 2805 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 50,850 psi | 90% | 2900 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,778 psi | 90% | 2867 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 47,921 psi | 85% | 2828 fps | 97.3% |
| Rottweil R 901 | <<locked>> | 84% | 50,212 psi | 89% | 2707 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 49,559 psi | 88% | 2717 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 50,676 psi | 90% | 2789 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 49,559 psi | 88% | 2740 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 49,414 psi | 87% | 2749 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 50,198 psi | 89% | 2746 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 98% | 50,125 psi | 89% | 2766 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 49,052 psi | 87% | 2795 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 51,169 psi | 90% | 2762 fps | 98.1% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 48,414 psi | 86% | 2733 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 50,937 psi | 90% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 50,749 psi | 90% | 2667 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 50,270 psi | 89% | 2753 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 49,966 psi | 88% | 2664 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 50,604 psi | 89% | 2756 fps | 99.3% |
| Somchem S355 | <<locked>> | 92% | 48,124 psi | 85% | 2736 fps | 99.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,266 psi | 80% | 2789 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 82% | 50,720 psi | 90% | 2638 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 51,082 psi | 90% | 2661 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 48,892 psi | 86% | 2690 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 49,922 psi | 88% | 2707 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 49,356 psi | 87% | 2723 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 98% | 50,038 psi | 88% | 2789 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 84% | 49,530 psi | 88% | 2720 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 88% | 48,138 psi | 85% | 2697 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,994 psi | 87% | 2789 fps | 98% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,043 psi | 67% | 2654 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 50,821 psi | 90% | 2776 fps | 99.7% |
| Winchester 748 | <<locked>> | 84% | 48,994 psi | 87% | 2766 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 86% | 48,182 psi | 85% | 2743 fps | 99.4% |
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% | 45,194 psi | 80% | 2592 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,608 psi | 66% | 2507 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,237 psi | 78% | 2651 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 35,578 psi | 63% | 2493 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 36,172 psi | 64% | 2566 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 41,481 psi | 73% | 2608 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 35,215 psi | 62% | 2454 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,540 psi | 77% | 2618 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 43,192 psi | 76% | 2618 fps | 100% |
| Alliant Power Pro 2000-MR | 42.1 gr | 80% | 37,550 psi | 66% | 2618 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,795 psi | 62% | 2480 fps | 97% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,318 psi | 66% | 2536 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,869 psi | 65% | 2582 fps | 95.1% |
| Alliant Reloder-17 | 42.5 gr | 82% | 32,010 psi | 57% | 2487 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 98% | 33,373 psi | 59% | 2523 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,451 psi | 72% | 2605 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 34,011 psi | 60% | 2474 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,440 psi | 80% | 2615 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 42,061 psi | 74% | 2638 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 46,253 psi | 82% | 2772 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 84% | 40,118 psi | 71% | 2589 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 47,732 psi | 84% | 2785 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 41,829 psi | 74% | 2618 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,604 psi | 56% | 2421 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,797 psi | 67% | 2585 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,063 psi | 46% | 1532 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,277 psi | 71% | 2572 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 41,191 psi | 73% | 2625 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,941 psi | 65% | 2487 fps | 96.2% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,892 psi | 85% | 2671 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 47,471 psi | 84% | 2690 fps | 95% |
| IMR 4831 | <<locked>> | 92% | 37,434 psi | 66% | 2575 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 38,174 psi | 67% | 2569 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 80% | 43,540 psi | 77% | 2618 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 40,248 psi | 71% | 2589 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 41,785 psi | 74% | 2549 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 36,811 psi | 65% | 2493 fps | 98% |
| Lovex S065 | <<locked>> | 90% | 41,263 psi | 73% | 2585 fps | 95% |
| Lovex S070 | <<locked>> | 96% | 47,021 psi | 83% | 2713 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 40,582 psi | 72% | 2562 fps | 98.7% |
| Norma 202 | <<locked>> | 80% | 40,959 psi | 72% | 2579 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 36,680 psi | 65% | 2526 fps | 96.6% |
| Norma URP | <<locked>> | 90% | 36,869 psi | 65% | 2572 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 36,172 psi | 64% | 2536 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 96% | 43,685 psi | 77% | 2713 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 43,482 psi | 77% | 2618 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,670 psi | 75% | 2638 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 47,166 psi | 83% | 2667 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,455 psi | 47% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 46,253 psi | 82% | 2680 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,769 psi | 69% | 2635 fps | 96.6% |
| ReloadSwiss RS 60 | 41.4 gr | 80% | 31,778 psi | 56% | 2493 fps | 97.6% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,682 psi | 68% | 2638 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,901 psi | 74% | 2707 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 44,483 psi | 79% | 2612 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,798 psi | 69% | 2516 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 32,126 psi | 57% | 2421 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 41,263 psi | 73% | 2585 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,248 psi | 71% | 2589 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 36,811 psi | 65% | 2493 fps | 98% |
| Shooters World SW4350 | <<locked>> | 96% | 47,021 psi | 83% | 2713 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,127 psi | 59% | 2467 fps | 95.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,626 psi | 74% | 2592 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,016 psi | 71% | 2575 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,308 psi | 75% | 2530 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,969 psi | 62% | 2395 fps | 99.7% |
| Somchem S321 | <<locked>> | 80% | 46,862 psi | 83% | 2697 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 41,611 psi | 74% | 2526 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,249 psi | 73% | 2589 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 32,996 psi | 58% | 2428 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 28,848 psi | 51% | 2405 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 47,877 psi | 85% | 2598 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,554 psi | 75% | 2526 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 38,029 psi | 67% | 2510 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,725 psi | 68% | 2513 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,459 psi | 56% | 2372 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 90% | 38,435 psi | 68% | 2572 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 43,439 psi | 77% | 2615 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 37,275 psi | 66% | 2500 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 37,826 psi | 67% | 2575 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 98% | 35,592 psi | 63% | 2598 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,908 psi | 56% | 2392 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 42,714 psi | 76% | 2654 fps | 99.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,175 psi | 69% | 2575 fps | 97.9% |
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 101 powders for 7 x 57 loaded with the .284 | 139gr | Hornady SST. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,900 fps; across all powders the maximum-charge window runs from 1,713 fps to 2,900 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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 | 139gr | Hornady SST they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, ADI AR 2209 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.