Load Specifications
Load data in caliber 7 x 57 with .284 | 150gr | Sierra GameKing bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 and ReloadSwiss RS 60.
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 2495 | <<locked>> | 86% | 50,560 psi | 89% | 2625 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 49,603 psi | 88% | 2612 fps | 95.9% |
| Accurate 4064 | <<locked>> | 88% | 50,691 psi | 90% | 2671 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 49,893 psi | 88% | 2740 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 84% | 50,981 psi | 90% | 2690 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 88% | 48,878 psi | 86% | 2644 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 50,111 psi | 89% | 2648 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 50,517 psi | 89% | 2625 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 50,328 psi | 89% | 2799 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 48,805 psi | 86% | 2667 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 49,182 psi | 87% | 2684 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 96% | 48,312 psi | 85% | 2743 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 48,805 psi | 86% | 2776 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,102 psi | 69% | 2592 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,671 psi | 77% | 2746 fps | 98% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 50,357 psi | 89% | 2700 fps | 99.3% |
| Bofors RP3 | <<locked>> | 88% | 48,921 psi | 86% | 2677 fps | 99.9% |
| Bofors RP7 | <<locked>> | 92% | 49,472 psi | 87% | 2648 fps | 96.2% |
| Hodgdon BL-C2 | <<locked>> | 82% | 49,081 psi | 87% | 2671 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 49,922 psi | 88% | 2687 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 94% | 49,313 psi | 87% | 2733 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 82% | 48,356 psi | 85% | 2654 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,126 psi | 90% | 2730 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 50,778 psi | 90% | 2736 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 49,472 psi | 87% | 2756 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,665 psi | 63% | 1670 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 49,501 psi | 88% | 2657 fps | 99.9% |
| IMR 3031 | <<locked>> | 82% | 48,196 psi | 85% | 2641 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 48,327 psi | 85% | 2625 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 84% | 48,283 psi | 85% | 2602 fps | 96.5% |
| IMR 4350 | <<locked>> | 96% | 49,487 psi | 87% | 2671 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 48,225 psi | 85% | 2628 fps | 96.4% |
| IMR 4831 | <<locked>> | 98% | 50,633 psi | 90% | 2733 fps | 99.3% |
| IMR 4895 | <<locked>> | 86% | 50,430 psi | 89% | 2713 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 50,111 psi | 89% | 2648 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 50,502 psi | 89% | 2671 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 50,908 psi | 90% | 2628 fps | 99.8% |
| Lovex S062 | <<locked>> | 86% | 48,182 psi | 85% | 2625 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 50,546 psi | 89% | 2674 fps | 98.2% |
| Lovex S070 | <<locked>> | 94% | 48,428 psi | 86% | 2657 fps | 96.8% |
| Norma 201 | <<locked>> | 84% | 49,966 psi | 88% | 2644 fps | 100% |
| Norma 202 | <<locked>> | 84% | 50,285 psi | 89% | 2644 fps | 100% |
| Norma 203B | <<locked>> | 86% | 48,443 psi | 86% | 2671 fps | 99.6% |
| Norma URP | <<locked>> | 96% | 49,356 psi | 87% | 2730 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 86% | 48,675 psi | 86% | 2694 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 96% | 48,225 psi | 85% | 2723 fps | 97.5% |
| Ramshot TAC | <<locked>> | 82% | 49,951 psi | 88% | 2654 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 49,574 psi | 88% | 2674 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,056 psi | 64% | 1709 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 50,183 psi | 89% | 2671 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 49,211 psi | 87% | 2743 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 48,805 psi | 86% | 2779 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 49,414 psi | 87% | 2756 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 49,414 psi | 87% | 2782 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 82% | 50,952 psi | 90% | 2625 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 50,560 psi | 89% | 2644 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 49,124 psi | 87% | 2674 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 92% | 49,472 psi | 87% | 2648 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 50,546 psi | 89% | 2674 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 50,502 psi | 89% | 2671 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 48,182 psi | 85% | 2625 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 48,428 psi | 86% | 2657 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 50,343 psi | 89% | 2726 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 48,414 psi | 86% | 2635 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 49,443 psi | 87% | 2664 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 48,167 psi | 85% | 2543 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 48,428 psi | 86% | 2546 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 50,778 psi | 90% | 2628 fps | 97% |
| Somchem S335 | <<locked>> | 84% | 50,879 psi | 90% | 2589 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 48,298 psi | 85% | 2631 fps | 99.5% |
| Somchem S355 | <<locked>> | 90% | 49,647 psi | 88% | 2674 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,285 psi | 89% | 2779 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 48,501 psi | 86% | 2533 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 50,241 psi | 89% | 2615 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 50,981 psi | 90% | 2631 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 50,792 psi | 90% | 2657 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 48,414 psi | 86% | 2677 fps | 98.8% |
| Vihtavuori N530 | <<locked>> | 82% | 50,473 psi | 89% | 2648 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 49,153 psi | 87% | 2625 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 50,546 psi | 89% | 2730 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,772 psi | 76% | 2664 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 48,443 psi | 86% | 2657 fps | 99.9% |
| Winchester 748 | <<locked>> | 82% | 50,024 psi | 88% | 2687 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 49,647 psi | 88% | 2740 fps | 97% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,114 psi | 62% | 2592 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 49,052 psi | 87% | 2667 fps | 99.9% |
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 2495 | <<locked>> | 80% | 41,510 psi | 73% | 2484 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,659 psi | 82% | 2559 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 39,276 psi | 69% | 2480 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,953 psi | 58% | 2408 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 45,034 psi | 80% | 2592 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 38,290 psi | 68% | 2448 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,065 psi | 83% | 2598 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,558 psi | 84% | 2585 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,828 psi | 72% | 2618 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,840 psi | 67% | 2467 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,756 psi | 72% | 2530 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,388 psi | 59% | 2421 fps | 95.1% |
| Alliant Reloder-17 | 42.5 gr | 80% | 32,779 psi | 58% | 2438 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,560 psi | 54% | 2379 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,317 psi | 62% | 2552 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,251 psi | 78% | 2595 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 37,492 psi | 66% | 2470 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 46,470 psi | 82% | 2595 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,847 psi | 81% | 2618 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,464 psi | 68% | 2474 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 90% | 43,149 psi | 76% | 2621 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 45,455 psi | 80% | 2602 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,689 psi | 51% | 2274 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,408 psi | 73% | 2575 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 46,166 psi | 82% | 2697 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,353 psi | 47% | 1486 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,685 psi | 77% | 2556 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 45,049 psi | 80% | 2592 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,205 psi | 71% | 2477 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,714 psi | 76% | 2500 fps | 95% |
| IMR 4350 | <<locked>> | 94% | 46,514 psi | 82% | 2618 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,368 psi | 80% | 2579 fps | 95.7% |
| IMR 4831 | <<locked>> | 86% | 34,142 psi | 60% | 2421 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 41,742 psi | 74% | 2559 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 47,065 psi | 83% | 2598 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 44,121 psi | 78% | 2572 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,020 psi | 80% | 2530 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 40,147 psi | 71% | 2484 fps | 99.3% |
| Lovex S065 | <<locked>> | 84% | 37,333 psi | 66% | 2428 fps | 95% |
| Lovex S070 | <<locked>> | 90% | 42,772 psi | 76% | 2556 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 44,048 psi | 78% | 2543 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 44,324 psi | 78% | 2549 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,118 psi | 71% | 2516 fps | 98.5% |
| Norma URP | <<locked>> | 84% | 33,286 psi | 59% | 2411 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 39,494 psi | 70% | 2526 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 39,552 psi | 70% | 2556 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 47,065 psi | 83% | 2605 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,601 psi | 82% | 2625 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,803 psi | 47% | 1526 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,495 psi | 73% | 2513 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,830 psi | 76% | 2628 fps | 98.5% |
| ReloadSwiss RS 60 | 42.5 gr | 80% | 34,896 psi | 62% | 2500 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,056 psi | 62% | 2480 fps | 95.4% |
| ReloadSwiss RS 70 | 47.4 gr | 88% | 37,550 psi | 66% | 2539 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 48,196 psi | 85% | 2585 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,901 psi | 74% | 2497 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 35,244 psi | 62% | 2415 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 46,470 psi | 82% | 2595 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 37,333 psi | 66% | 2428 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,121 psi | 78% | 2572 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,147 psi | 71% | 2484 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 42,772 psi | 76% | 2556 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,245 psi | 64% | 2464 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,179 psi | 80% | 2579 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,453 psi | 77% | 2559 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,484 psi | 80% | 2497 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,855 psi | 67% | 2372 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,382 psi | 78% | 2523 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 45,005 psi | 80% | 2500 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,049 psi | 80% | 2579 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 36,158 psi | 64% | 2421 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 26,339 psi | 47% | 2260 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 45,788 psi | 81% | 2490 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,524 psi | 73% | 2480 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,916 psi | 74% | 2487 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,287 psi | 61% | 2359 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 34,867 psi | 62% | 2415 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 47,079 psi | 83% | 2592 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,567 psi | 72% | 2480 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 34,229 psi | 61% | 2415 fps | 95% |
| Vihtavuori N555 | <<locked>> | 92% | 32,851 psi | 58% | 2454 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,560 psi | 54% | 2290 fps | 96.1% |
| Winchester 748 | <<locked>> | 80% | 46,949 psi | 83% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,453 psi | 77% | 2628 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,863 psi | 51% | 2398 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,989 psi | 76% | 2566 fps | 99.3% |
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 | 150gr | Sierra GameKing. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,799 fps; across all powders the maximum-charge window runs from 1,670 fps to 2,799 fps. Alliant Reloder-23 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 62–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, 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 70, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for 7 x 57 with the .284 | 150gr | Sierra GameKing 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.