Load Specifications
Load data in caliber 7 x 57 with .284 | 140gr | Sierra GameKing 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% | 51,155 psi | 90% | 2671 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 49,008 psi | 87% | 2690 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 50,807 psi | 90% | 2746 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 48,805 psi | 86% | 2726 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 47,718 psi | 84% | 2782 fps | 98.1% |
| ADI AR 2206H | <<locked>> | 86% | 49,951 psi | 88% | 2749 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 92% | 50,850 psi | 90% | 2749 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 84% | 49,110 psi | 87% | 2707 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 84% | 49,240 psi | 87% | 2697 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 48,979 psi | 87% | 2848 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 50,401 psi | 89% | 2772 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 88% | 48,022 psi | 85% | 2740 fps | 98.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 49,908 psi | 88% | 2841 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 96% | 50,662 psi | 90% | 2881 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 35,360 psi | 63% | 2566 fps | 96.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 49,342 psi | 87% | 2759 fps | 98.5% |
| Bofors RP3 | <<locked>> | 92% | 50,879 psi | 90% | 2789 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 84% | 51,126 psi | 90% | 2697 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 47,906 psi | 85% | 2733 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 82% | 49,458 psi | 87% | 2822 fps | 99% |
| Hodgdon H380 | <<locked>> | 90% | 48,544 psi | 86% | 2736 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 98% | 51,140 psi | 90% | 2835 fps | 96.2% |
| Hodgdon H4895 | <<locked>> | 86% | 50,372 psi | 89% | 2762 fps | 99.6% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 46,064 psi | 81% | 2723 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 49,124 psi | 87% | 2789 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,070 psi | 62% | 1706 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 48,573 psi | 86% | 2717 fps | 99.4% |
| IMR 3031 | <<locked>> | 86% | 49,908 psi | 88% | 2756 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 50,502 psi | 89% | 2733 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 88% | 50,720 psi | 90% | 2707 fps | 95.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,704 psi | 86% | 2779 fps | 98.4% |
| IMR 4895 | <<locked>> | 88% | 49,211 psi | 87% | 2769 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 84% | 49,110 psi | 87% | 2707 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 86% | 49,124 psi | 87% | 2733 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 50,183 psi | 89% | 2687 fps | 99.3% |
| Lovex S062 | <<locked>> | 90% | 50,183 psi | 89% | 2736 fps | 99.9% |
| Lovex S065 | <<locked>> | 96% | 49,342 psi | 87% | 2723 fps | 97.1% |
| Lovex S070 | <<locked>> | 98% | 49,951 psi | 88% | 2753 fps | 96.1% |
| Norma 201 | <<locked>> | 86% | 48,907 psi | 86% | 2703 fps | 99.8% |
| Norma 202 | <<locked>> | 86% | 49,110 psi | 87% | 2707 fps | 100% |
| Norma 203B | <<locked>> | 90% | 50,430 psi | 89% | 2779 fps | 99.4% |
| Norma URPᴾ | <<locked>> | 100% | 50,749 psi | 90% | 2828 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 90% | 50,647 psi | 90% | 2802 fps | 99.3% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 49,748 psi | 88% | 2818 fps | 96.8% |
| Ramshot TAC | <<locked>> | 84% | 49,516 psi | 88% | 2717 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 48,805 psi | 86% | 2740 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 82% | 50,154 psi | 89% | 2710 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,404 psi | 63% | 1745 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 49,371 psi | 87% | 2723 fps | 96.3% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 50,981 psi | 90% | 2851 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 50,633 psi | 90% | 2887 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 50,647 psi | 90% | 2854 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 47,819 psi | 85% | 2815 fps | 97.3% |
| Rottweil R 901 | <<locked>> | 84% | 50,111 psi | 89% | 2694 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 49,501 psi | 88% | 2703 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 50,415 psi | 89% | 2772 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 96% | 49,342 psi | 87% | 2723 fps | 97.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 49,124 psi | 87% | 2733 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 50,183 psi | 89% | 2736 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 98% | 49,951 psi | 88% | 2753 fps | 96.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 48,849 psi | 86% | 2782 fps | 99.1% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 50,879 psi | 90% | 2746 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 48,443 psi | 86% | 2723 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 50,575 psi | 89% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 50,459 psi | 89% | 2651 fps | 100% |
| Somchem S321 | <<locked>> | 82% | 49,966 psi | 88% | 2736 fps | 99.9% |
| Somchem S335 | <<locked>> | 86% | 49,937 psi | 88% | 2654 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 50,343 psi | 89% | 2740 fps | 99.3% |
| Somchem S355 | <<locked>> | 94% | 51,024 psi | 90% | 2772 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 45,136 psi | 80% | 2776 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 82% | 50,647 psi | 90% | 2625 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 50,691 psi | 90% | 2641 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 48,834 psi | 86% | 2680 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 49,559 psi | 88% | 2690 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 49,124 psi | 87% | 2707 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 98% | 49,893 psi | 88% | 2772 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 84% | 49,516 psi | 88% | 2707 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 90% | 50,995 psi | 90% | 2733 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 48,805 psi | 86% | 2776 fps | 98% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,898 psi | 67% | 2641 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 50,734 psi | 90% | 2759 fps | 99.7% |
| Winchester 748 | <<locked>> | 84% | 49,008 psi | 87% | 2753 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 51,140 psi | 90% | 2835 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 88% | 51,111 psi | 90% | 2779 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% | 45,092 psi | 80% | 2579 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 37,536 psi | 66% | 2493 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 44,164 psi | 78% | 2641 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 35,505 psi | 63% | 2480 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 36,201 psi | 64% | 2556 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 41,452 psi | 73% | 2595 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 35,157 psi | 62% | 2441 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 43,453 psi | 77% | 2608 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 43,091 psi | 76% | 2605 fps | 100% |
| Alliant Power Pro 2000-MR | 41.7 gr | 80% | 37,289 psi | 66% | 2602 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,461 psi | 61% | 2464 fps | 96.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,275 psi | 66% | 2526 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,651 psi | 65% | 2566 fps | 95.1% |
| Alliant Reloder-17 | 43.2 gr | 84% | 34,127 psi | 60% | 2533 fps | 96.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 33,402 psi | 59% | 2513 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,466 psi | 72% | 2595 fps | 96.6% |
| Bofors RP3 | <<locked>> | 80% | 33,982 psi | 60% | 2464 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 45,368 psi | 80% | 2602 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,785 psi | 74% | 2621 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 45,963 psi | 81% | 2759 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 84% | 39,856 psi | 70% | 2572 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 47,892 psi | 85% | 2779 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 41,785 psi | 74% | 2608 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,589 psi | 56% | 2411 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,507 psi | 66% | 2569 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,078 psi | 46% | 1522 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,234 psi | 71% | 2559 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 41,104 psi | 73% | 2612 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,869 psi | 65% | 2477 fps | 96.2% |
| IMR 4166 Enduron | <<locked>> | 86% | 47,630 psi | 84% | 2654 fps | 95.1% |
| IMR 4831 | <<locked>> | 92% | 37,463 psi | 66% | 2566 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 38,116 psi | 67% | 2556 fps | 97.1% |
| IMR 8208 XBR | <<locked>> | 80% | 43,453 psi | 77% | 2608 fps | 99.2% |
| Lovex D073.6 | <<locked>> | 80% | 40,190 psi | 71% | 2579 fps | 99.6% |
| Lovex S060 | <<locked>> | 80% | 41,727 psi | 74% | 2536 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 36,738 psi | 65% | 2484 fps | 98% |
| Lovex S065 | <<locked>> | 92% | 43,729 psi | 77% | 2621 fps | 95.7% |
| Lovex S070 | <<locked>> | 96% | 46,789 psi | 83% | 2697 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 40,509 psi | 72% | 2549 fps | 98.8% |
| Norma 202 | <<locked>> | 80% | 40,640 psi | 72% | 2562 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 36,651 psi | 65% | 2516 fps | 96.7% |
| Norma URP | <<locked>> | 90% | 36,651 psi | 65% | 2556 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 35,911 psi | 63% | 2520 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 96% | 43,758 psi | 77% | 2707 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 43,453 psi | 77% | 2608 fps | 95.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 42,685 psi | 75% | 2628 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,876 psi | 83% | 2654 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,469 psi | 47% | 1562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 46,050 psi | 81% | 2664 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,696 psi | 68% | 2621 fps | 96.6% |
| ReloadSwiss RS 60 | 41.1 gr | 80% | 31,749 psi | 56% | 2480 fps | 97.7% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 38,522 psi | 68% | 2625 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 41,785 psi | 74% | 2694 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 44,382 psi | 78% | 2598 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,696 psi | 68% | 2503 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 32,068 psi | 57% | 2408 fps | 95.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 43,729 psi | 77% | 2621 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,190 psi | 71% | 2579 fps | 99.6% |
| Shooters World Precision | <<locked>> | 80% | 36,738 psi | 65% | 2484 fps | 98% |
| Shooters World SW4350 | <<locked>> | 96% | 46,789 psi | 83% | 2697 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 33,127 psi | 59% | 2457 fps | 95.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,336 psi | 73% | 2572 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,987 psi | 71% | 2566 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 42,235 psi | 75% | 2516 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,925 psi | 62% | 2382 fps | 99.7% |
| Somchem S321 | <<locked>> | 80% | 46,891 psi | 83% | 2687 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 41,553 psi | 73% | 2516 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,205 psi | 73% | 2579 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 32,938 psi | 58% | 2418 fps | 95.9% |
| Somchem S365 | <<locked>> | 86% | 28,819 psi | 51% | 2395 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 47,761 psi | 84% | 2582 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,467 psi | 75% | 2516 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,913 psi | 67% | 2497 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,667 psi | 68% | 2503 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,415 psi | 56% | 2362 fps | 96.9% |
| Vihtavuori N160 | <<locked>> | 90% | 38,508 psi | 68% | 2562 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 43,381 psi | 77% | 2602 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 36,985 psi | 65% | 2484 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 37,608 psi | 66% | 2559 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 98% | 35,636 psi | 63% | 2589 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,937 psi | 56% | 2382 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 42,656 psi | 75% | 2644 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 47,892 psi | 85% | 2779 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,175 psi | 69% | 2566 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 100 powders for 7 x 57 loaded with the .284 | 140gr | Sierra GameKing. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,887 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,887 fps. Accurate 3100 gives the best case fill at 100 %, and 100 of the 100 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 140.0 gr projectile in 0.284" calls for a 1:10.0 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 | 140gr | Sierra GameKing 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.