Load Specifications
Load data in caliber 7 x 57 with .284 | 160gr | 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 Alliant Reloder-16, ReloadSwiss RS 70 and Ramshot Hunter.
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>> | 84% | 48,486 psi | 86% | 2500 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 50,705 psi | 90% | 2539 fps | 96.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,887 psi | 74% | 2497 fps | 96.7% |
| Accurate 4064 | <<locked>> | 86% | 48,501 psi | 86% | 2543 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 50,952 psi | 90% | 2661 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 82% | 48,921 psi | 86% | 2566 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 88% | 49,676 psi | 88% | 2566 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 51,111 psi | 90% | 2569 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 47,718 psi | 84% | 2661 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 49,777 psi | 88% | 2589 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 50,111 psi | 89% | 2605 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 96% | 49,284 psi | 87% | 2667 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 50,053 psi | 88% | 2700 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,900 psi | 71% | 2523 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,773 psi | 79% | 2680 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 48,066 psi | 85% | 2572 fps | 99.3% |
| Bofors RP3 | <<locked>> | 88% | 50,111 psi | 89% | 2602 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 50,241 psi | 89% | 2572 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 50,140 psi | 89% | 2592 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 50,792 psi | 90% | 2608 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 94% | 50,575 psi | 89% | 2664 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 82% | 49,371 psi | 87% | 2575 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 48,660 psi | 86% | 2598 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 48,428 psi | 86% | 2605 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 50,778 psi | 90% | 2690 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,636 psi | 63% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 50,270 psi | 89% | 2575 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 49,153 psi | 87% | 2559 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 49,371 psi | 87% | 2552 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,342 psi | 87% | 2530 fps | 97.3% |
| IMR 4350 | <<locked>> | 96% | 50,618 psi | 89% | 2602 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 90% | 49,197 psi | 87% | 2556 fps | 97.1% |
| IMR 4831 | <<locked>> | 96% | 48,385 psi | 86% | 2608 fps | 99.3% |
| IMR 4895 | <<locked>> | 84% | 48,167 psi | 85% | 2582 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 51,111 psi | 90% | 2569 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 48,298 psi | 85% | 2543 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 48,631 psi | 86% | 2500 fps | 99.8% |
| Lovex S062 | <<locked>> | 86% | 49,269 psi | 87% | 2549 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 48,588 psi | 86% | 2552 fps | 98.3% |
| Lovex S070 | <<locked>> | 94% | 49,066 psi | 87% | 2579 fps | 97.5% |
| Norma 201 | <<locked>> | 84% | 50,952 psi | 90% | 2566 fps | 100% |
| Norma 202 | <<locked>> | 82% | 48,167 psi | 85% | 2520 fps | 100% |
| Norma 203B | <<locked>> | 86% | 49,400 psi | 87% | 2592 fps | 99.9% |
| Norma MRPᴾ | <<locked>> | 100% | 44,599 psi | 79% | 2635 fps | 96.1% |
| Norma URP | <<locked>> | 96% | 50,241 psi | 89% | 2651 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 86% | 49,690 psi | 88% | 2618 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 96% | 49,197 psi | 87% | 2651 fps | 98.2% |
| Ramshot TAC | <<locked>> | 82% | 50,937 psi | 90% | 2582 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 50,531 psi | 89% | 2598 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,085 psi | 64% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 51,097 psi | 90% | 2592 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 50,328 psi | 89% | 2664 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 49,603 psi | 88% | 2697 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 50,705 psi | 90% | 2684 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 50,270 psi | 89% | 2707 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 84% | 48,457 psi | 86% | 2520 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 49,980 psi | 88% | 2595 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 50,241 psi | 89% | 2572 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 48,588 psi | 86% | 2552 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 82% | 48,298 psi | 85% | 2543 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 49,269 psi | 87% | 2549 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 49,066 psi | 87% | 2579 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 48,182 psi | 85% | 2598 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 49,400 psi | 87% | 2562 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 50,386 psi | 89% | 2585 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 49,197 psi | 87% | 2464 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 49,443 psi | 87% | 2467 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 48,472 psi | 86% | 2507 fps | 97.1% |
| Somchem S335 | <<locked>> | 82% | 48,675 psi | 86% | 2464 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 49,008 psi | 87% | 2552 fps | 99.8% |
| Somchem S355 | <<locked>> | 90% | 50,372 psi | 89% | 2592 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 48,138 psi | 85% | 2654 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 47,906 psi | 85% | 2592 fps | 96.4% |
| Vihtavuori N133 | <<locked>> | 82% | 49,530 psi | 88% | 2454 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 50,995 psi | 90% | 2530 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 48,646 psi | 86% | 2503 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 48,414 psi | 86% | 2530 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 49,255 psi | 87% | 2598 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 86% | 49,806 psi | 88% | 2543 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 48,356 psi | 85% | 2605 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,859 psi | 78% | 2595 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 49,501 psi | 88% | 2585 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 50,981 psi | 90% | 2605 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 50,575 psi | 89% | 2664 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,810 psi | 63% | 2533 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 50,111 psi | 89% | 2595 fps | 100% |
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% | 42,366 psi | 75% | 2408 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 44,338 psi | 78% | 2434 fps | 95.2% |
| Accurate 3100 | <<locked>> | 98% | 39,059 psi | 69% | 2444 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 40,089 psi | 71% | 2408 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 31,647 psi | 56% | 2300 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 45,861 psi | 81% | 2516 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 38,870 psi | 69% | 2372 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,906 psi | 85% | 2520 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,582 psi | 74% | 2549 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,827 psi | 69% | 2402 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,568 psi | 73% | 2457 fps | 98.7% |
| Alliant Reloder-16 | 39.1 gr | 82% | 31,981 psi | 57% | 2310 fps | 95.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,388 psi | 59% | 2372 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,428 psi | 52% | 2274 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 92% | 33,721 psi | 60% | 2434 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,107 psi | 80% | 2523 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 38,377 psi | 68% | 2402 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 44,469 psi | 79% | 2474 fps | 95.5% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,717 psi | 83% | 2539 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,059 psi | 69% | 2405 fps | 97.1% |
| Hodgdon H414 | <<locked>> | 88% | 41,307 psi | 73% | 2500 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 46,311 psi | 82% | 2526 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,572 psi | 49% | 2169 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,177 psi | 75% | 2500 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 90% | 43,990 psi | 78% | 2572 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,556 psi | 47% | 1430 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,469 psi | 79% | 2480 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 46,209 psi | 82% | 2516 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,828 psi | 72% | 2405 fps | 98.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,424 psi | 77% | 2428 fps | 95.9% |
| IMR 4350 | <<locked>> | 92% | 44,541 psi | 79% | 2500 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,988 psi | 72% | 2408 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 32,851 psi | 58% | 2313 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 42,583 psi | 75% | 2487 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 47,906 psi | 85% | 2520 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,165 psi | 80% | 2497 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,643 psi | 81% | 2451 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 40,857 psi | 72% | 2408 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 35,766 psi | 63% | 2310 fps | 95.1% |
| Lovex S070 | <<locked>> | 88% | 40,799 psi | 72% | 2431 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 44,817 psi | 79% | 2467 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,411 psi | 80% | 2477 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,930 psi | 72% | 2448 fps | 99% |
| Norma MRP | <<locked>> | 98% | 41,742 psi | 74% | 2579 fps | 95.2% |
| Norma URP | <<locked>> | 82% | 31,937 psi | 56% | 2297 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 40,335 psi | 71% | 2457 fps | 98.8% |
| Ramshot Hunter | 44.5 gr | 88% | 37,898 psi | 67% | 2438 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 47,892 psi | 85% | 2533 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,427 psi | 84% | 2549 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,035 psi | 48% | 1467 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,639 psi | 70% | 2392 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,932 psi | 78% | 2559 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,520 psi | 63% | 2434 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 33,504 psi | 59% | 2362 fps | 95.5% |
| ReloadSwiss RS 70 | 44.9 gr | 86% | 35,969 psi | 64% | 2425 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 42,844 psi | 76% | 2425 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 36,245 psi | 64% | 2352 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 44,469 psi | 79% | 2474 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 35,766 psi | 63% | 2310 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,165 psi | 80% | 2497 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,857 psi | 72% | 2408 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 40,799 psi | 72% | 2431 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,159 psi | 66% | 2398 fps | 98.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,006 psi | 81% | 2507 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,396 psi | 78% | 2490 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,340 psi | 82% | 2421 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,653 psi | 68% | 2300 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,511 psi | 75% | 2405 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 45,687 psi | 81% | 2418 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,977 psi | 81% | 2503 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 36,869 psi | 65% | 2356 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 26,919 psi | 48% | 2205 fps | 96.5% |
| Somchem S385 | <<locked>> | 98% | 44,860 psi | 79% | 2543 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 46,702 psi | 83% | 2411 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,482 psi | 75% | 2405 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,975 psi | 76% | 2415 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,244 psi | 62% | 2297 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 33,460 psi | 59% | 2303 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 41,133 psi | 73% | 2402 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,779 psi | 58% | 2300 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 88% | 29,776 psi | 53% | 2293 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,140 psi | 55% | 2231 fps | 97% |
| Winchester 748 | <<locked>> | 80% | 47,747 psi | 84% | 2559 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 41,553 psi | 73% | 2503 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,688 psi | 49% | 2290 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,772 psi | 77% | 2490 fps | 99.6% |
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 | 160gr | Sierra GameKing. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,707 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,707 fps. Accurate 3100 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 63–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 Reloder-16, ReloadSwiss RS 70, Ramshot Hunter rank at the top here: for 7 x 57 with the .284 | 160gr | 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.