Load Specifications
Load data in caliber 7 x 57 with .284 | 139gr | Hornady GMX bullet and 81 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 ReloadSwiss RS 52.
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% | 49,168 psi | 87% | 2657 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 50,488 psi | 89% | 2723 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 49,821 psi | 88% | 2717 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 48,718 psi | 86% | 2730 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 49,676 psi | 88% | 2756 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,950 psi | 87% | 2815 fps | 98.3% |
| ADI AR 2206H | <<locked>> | 86% | 48,472 psi | 86% | 2740 fps | 99% |
| ADI AR 2208 | <<locked>> | 92% | 49,516 psi | 88% | 2740 fps | 98.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,995 psi | 90% | 2753 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 86% | 50,792 psi | 90% | 2733 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 50,894 psi | 90% | 2894 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 48,907 psi | 86% | 2762 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 90% | 49,385 psi | 87% | 2776 fps | 98.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,240 psi | 85% | 2822 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,197 psi | 87% | 2867 fps | 99.6% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 51,169 psi | 90% | 2799 fps | 98.7% |
| Bofors RP3 | <<locked>> | 92% | 48,762 psi | 86% | 2769 fps | 99.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 49,879 psi | 88% | 2690 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 49,501 psi | 88% | 2772 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 47,630 psi | 84% | 2802 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 92% | 50,241 psi | 89% | 2779 fps | 98% |
| Hodgdon H4895 | <<locked>> | 86% | 48,892 psi | 86% | 2753 fps | 99.4% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,295 psi | 78% | 2703 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 50,923 psi | 90% | 2831 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,635 psi | 61% | 1706 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 50,154 psi | 89% | 2756 fps | 99.5% |
| IMR 3031 | <<locked>> | 86% | 48,327 psi | 85% | 2746 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 48,791 psi | 86% | 2720 fps | 98.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,717 psi | 83% | 2759 fps | 97.9% |
| IMR 4895 | <<locked>> | 90% | 50,618 psi | 89% | 2808 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 86% | 50,995 psi | 90% | 2753 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 82% | 50,328 psi | 89% | 2730 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 50,705 psi | 90% | 2772 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 48,602 psi | 86% | 2674 fps | 99.1% |
| Lovex S062 | <<locked>> | 90% | 48,283 psi | 85% | 2720 fps | 99.7% |
| Lovex S065 | <<locked>> | 98% | 50,691 psi | 90% | 2759 fps | 97.3% |
| Norma 201 | <<locked>> | 88% | 50,183 psi | 89% | 2740 fps | 99.8% |
| Norma 202 | <<locked>> | 88% | 50,923 psi | 90% | 2749 fps | 100% |
| Norma 203B | <<locked>> | 90% | 48,588 psi | 86% | 2762 fps | 99.1% |
| Norma URPᴾ | <<locked>> | 100% | 48,892 psi | 86% | 2812 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 90% | 48,863 psi | 86% | 2785 fps | 99% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,037 psi | 85% | 2799 fps | 96.2% |
| Ramshot TAC | <<locked>> | 84% | 47,877 psi | 85% | 2700 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,589 psi | 89% | 2782 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 48,501 psi | 86% | 2694 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,186 psi | 62% | 1752 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 50,372 psi | 89% | 2733 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 50,807 psi | 90% | 2759 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 49,356 psi | 87% | 2838 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 48,834 psi | 86% | 2871 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,631 psi | 86% | 2835 fps | 98% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,705 psi | 88% | 2861 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 84% | 48,327 psi | 85% | 2684 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 50,807 psi | 90% | 2740 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 48,646 psi | 86% | 2759 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 50,691 psi | 90% | 2759 fps | 97.3% |
| Shooters World Match Rifle | <<locked>> | 88% | 50,705 psi | 90% | 2772 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 48,283 psi | 85% | 2720 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,633 psi | 90% | 2822 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,008 psi | 87% | 2726 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 50,198 psi | 89% | 2766 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 49,182 psi | 87% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 49,124 psi | 87% | 2648 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 50,966 psi | 90% | 2710 fps | 95.8% |
| Somchem S321 | <<locked>> | 82% | 48,472 psi | 86% | 2726 fps | 99.8% |
| Somchem S335 | <<locked>> | 86% | 48,486 psi | 86% | 2644 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 48,921 psi | 86% | 2730 fps | 99% |
| Somchem S355 | <<locked>> | 94% | 49,443 psi | 87% | 2762 fps | 99.4% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,250 psi | 76% | 2753 fps | 99.6% |
| Vihtavuori N130 | <<locked>> | 82% | 49,240 psi | 87% | 2621 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 49,342 psi | 87% | 2638 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 49,922 psi | 88% | 2710 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 48,138 psi | 85% | 2680 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 50,923 psi | 90% | 2749 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 48,037 psi | 85% | 2756 fps | 97.9% |
| Vihtavuori N530 | <<locked>> | 86% | 51,126 psi | 90% | 2746 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 49,545 psi | 88% | 2723 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,488 psi | 89% | 2815 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,095 psi | 87% | 2746 fps | 99.5% |
| Winchester 748 | <<locked>> | 86% | 50,517 psi | 89% | 2792 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 49,632 psi | 88% | 2769 fps | 99.5% |
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% | 43,497 psi | 77% | 2569 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,239 psi | 84% | 2671 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 35,447 psi | 63% | 2470 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 42,511 psi | 75% | 2625 fps | 99.8% |
| Accurate 4064 | <<locked>> | 80% | 33,533 psi | 59% | 2457 fps | 99.2% |
| Accurate 4350 | <<locked>> | 92% | 36,796 psi | 65% | 2585 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 40,016 psi | 71% | 2579 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 82% | 36,332 psi | 64% | 2484 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,134 psi | 74% | 2595 fps | 98.9% |
| Alliant AR-Comp | <<locked>> | 80% | 41,510 psi | 73% | 2595 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 38,508 psi | 68% | 2644 fps | 95.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,069 psi | 58% | 2444 fps | 96.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 35,839 psi | 63% | 2507 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 37,579 psi | 66% | 2602 fps | 95.3% |
| Alliant Reloder-17 | 43 gr | 84% | 32,590 psi | 58% | 2507 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 38,885 psi | 69% | 2572 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 32,343 psi | 57% | 2441 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,106 psi | 78% | 2592 fps | 99.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,263 psi | 71% | 2605 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,483 psi | 79% | 2746 fps | 98% |
| Hodgdon H380 | <<locked>> | 84% | 38,348 psi | 68% | 2556 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 40,335 psi | 71% | 2592 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 32,169 psi | 57% | 2441 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,129 psi | 64% | 2549 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,875 psi | 46% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 38,711 psi | 68% | 2543 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 39,291 psi | 69% | 2592 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 35,563 psi | 63% | 2461 fps | 95.6% |
| IMR 4831 | <<locked>> | 94% | 38,232 psi | 68% | 2595 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 36,666 psi | 65% | 2539 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 80% | 42,134 psi | 74% | 2595 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 80% | 47,079 psi | 83% | 2677 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 38,218 psi | 68% | 2552 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 40,509 psi | 72% | 2526 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 35,244 psi | 62% | 2467 fps | 97.5% |
| Lovex S065 | <<locked>> | 92% | 41,930 psi | 74% | 2602 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 38,928 psi | 69% | 2533 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 39,146 psi | 69% | 2546 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 35,186 psi | 62% | 2497 fps | 96.1% |
| Norma URP | <<locked>> | 92% | 37,463 psi | 66% | 2589 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 34,592 psi | 61% | 2503 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 98% | 44,962 psi | 79% | 2740 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 41,887 psi | 74% | 2589 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,060 psi | 73% | 2608 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,542 psi | 81% | 2641 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,947 psi | 46% | 1562 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,137 psi | 83% | 2680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,614 psi | 79% | 2651 fps | 95% |
| ReloadSwiss RS 52 | 40.3 gr | 80% | 36,970 psi | 65% | 2598 fps | 96% |
| ReloadSwiss RS 60 | 41 gr | 80% | 30,501 psi | 54% | 2457 fps | 97% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 39,624 psi | 70% | 2661 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 43,207 psi | 76% | 2736 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 42,598 psi | 75% | 2582 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 36,869 psi | 65% | 2480 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 30,269 psi | 54% | 2379 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 92% | 41,930 psi | 74% | 2602 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,218 psi | 68% | 2552 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 35,244 psi | 62% | 2467 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 33,779 psi | 60% | 2487 fps | 95.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 39,842 psi | 70% | 2556 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,406 psi | 68% | 2543 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,611 psi | 72% | 2500 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,402 psi | 59% | 2365 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,834 psi | 85% | 2661 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 45,121 psi | 80% | 2671 fps | 99.5% |
| Somchem S335 | <<locked>> | 80% | 40,132 psi | 71% | 2503 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 39,595 psi | 70% | 2559 fps | 97.3% |
| Somchem S355 | <<locked>> | 80% | 31,459 psi | 56% | 2395 fps | 95.2% |
| Somchem S365 | <<locked>> | 88% | 29,225 psi | 52% | 2421 fps | 95.5% |
| Vihtavuori N130 | <<locked>> | 80% | 46,079 psi | 81% | 2572 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 40,857 psi | 72% | 2503 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,114 psi | 64% | 2477 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 36,999 psi | 65% | 2484 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 29,791 psi | 53% | 2336 fps | 96.2% |
| Vihtavuori N160 | <<locked>> | 92% | 39,421 psi | 70% | 2595 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 42,003 psi | 74% | 2589 fps | 99% |
| Vihtavuori N540 | <<locked>> | 80% | 35,621 psi | 63% | 2470 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 38,667 psi | 68% | 2595 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 32,764 psi | 58% | 2415 fps | 95.6% |
| Winchester 748 | <<locked>> | 80% | 41,205 psi | 73% | 2631 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 37,753 psi | 67% | 2549 fps | 97.5% |
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 | 139gr | Hornady GMX. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,894 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,894 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 139.0 gr projectile in 0.284" calls for a 1:10.5 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. ReloadSwiss RS 60, Alliant Reloder-17, ReloadSwiss RS 52 rank at the top here: for 7 x 57 with the .284 | 139gr | Hornady GMX 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.