Load Specifications
Load data in caliber 7 x 57 with .284 | 160gr | Winchester FailSafe bullet and 85 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% | 48,399 psi | 86% | 2497 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 50,589 psi | 89% | 2539 fps | 96.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,061 psi | 74% | 2500 fps | 96.7% |
| Accurate 4064 | <<locked>> | 86% | 48,718 psi | 86% | 2546 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 51,126 psi | 90% | 2664 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 48,791 psi | 86% | 2562 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 88% | 49,864 psi | 88% | 2569 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 50,952 psi | 90% | 2566 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 51,155 psi | 90% | 2717 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 49,951 psi | 88% | 2592 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 50,343 psi | 89% | 2608 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 96% | 49,487 psi | 87% | 2671 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 49,908 psi | 88% | 2697 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,074 psi | 71% | 2526 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,643 psi | 79% | 2677 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 48,283 psi | 85% | 2575 fps | 99.3% |
| Bofors RP3 | <<locked>> | 88% | 49,966 psi | 88% | 2602 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 50,459 psi | 89% | 2575 fps | 97% |
| Hodgdon BL-C2 | <<locked>> | 82% | 50,024 psi | 88% | 2592 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 50,952 psi | 90% | 2612 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 94% | 50,444 psi | 89% | 2661 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 82% | 49,269 psi | 87% | 2572 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 48,878 psi | 86% | 2602 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 48,327 psi | 85% | 2602 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 50,618 psi | 89% | 2687 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,578 psi | 63% | 1601 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 50,473 psi | 89% | 2579 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 49,356 psi | 87% | 2562 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 49,255 psi | 87% | 2549 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,168 psi | 87% | 2530 fps | 97.2% |
| IMR 4350 | <<locked>> | 96% | 50,488 psi | 89% | 2598 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 90% | 49,081 psi | 87% | 2556 fps | 97.1% |
| IMR 4831 | <<locked>> | 96% | 48,617 psi | 86% | 2612 fps | 99.4% |
| IMR 4895 | <<locked>> | 84% | 48,385 psi | 86% | 2585 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 50,952 psi | 90% | 2566 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 48,182 psi | 85% | 2543 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 48,530 psi | 86% | 2500 fps | 99.8% |
| Lovex S062 | <<locked>> | 86% | 49,168 psi | 87% | 2549 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 48,457 psi | 86% | 2549 fps | 98.3% |
| Lovex S070 | <<locked>> | 94% | 49,226 psi | 87% | 2582 fps | 97.5% |
| Norma 201 | <<locked>> | 84% | 50,865 psi | 90% | 2562 fps | 100% |
| Norma 202 | <<locked>> | 82% | 48,356 psi | 85% | 2523 fps | 100% |
| Norma 203B | <<locked>> | 86% | 49,574 psi | 88% | 2595 fps | 99.9% |
| Norma MRPᴾ | <<locked>> | 100% | 44,730 psi | 79% | 2638 fps | 96.1% |
| Norma URP | <<locked>> | 96% | 50,473 psi | 89% | 2654 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 86% | 49,574 psi | 88% | 2615 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 96% | 49,066 psi | 87% | 2648 fps | 98.2% |
| Ramshot TAC | <<locked>> | 82% | 51,126 psi | 90% | 2582 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 50,763 psi | 90% | 2602 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,027 psi | 64% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 48,138 psi | 85% | 2546 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 50,575 psi | 89% | 2667 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 49,821 psi | 88% | 2700 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 50,589 psi | 89% | 2684 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 50,430 psi | 89% | 2710 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 84% | 48,341 psi | 85% | 2516 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 50,198 psi | 89% | 2598 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 50,459 psi | 89% | 2575 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 92% | 48,457 psi | 86% | 2549 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 82% | 48,182 psi | 85% | 2543 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 49,168 psi | 87% | 2549 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 49,226 psi | 87% | 2582 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 48,399 psi | 86% | 2602 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 49,632 psi | 88% | 2562 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 50,546 psi | 89% | 2589 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 49,066 psi | 87% | 2461 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 49,327 psi | 87% | 2467 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 48,370 psi | 86% | 2503 fps | 97.1% |
| Somchem S335 | <<locked>> | 82% | 48,892 psi | 86% | 2467 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 49,168 psi | 87% | 2556 fps | 99.8% |
| Somchem S355 | <<locked>> | 90% | 50,575 psi | 89% | 2595 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 48,327 psi | 85% | 2657 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 48,066 psi | 85% | 2595 fps | 96.5% |
| Vihtavuori N133 | <<locked>> | 82% | 49,429 psi | 87% | 2451 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 48,211 psi | 85% | 2490 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 48,820 psi | 86% | 2503 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 48,617 psi | 86% | 2533 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 49,443 psi | 87% | 2602 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 86% | 50,038 psi | 88% | 2543 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 48,559 psi | 86% | 2605 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,048 psi | 78% | 2598 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 49,356 psi | 87% | 2582 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 50,792 psi | 90% | 2664 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,969 psi | 64% | 2539 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 84% | 49,995 psi | 88% | 2592 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% | 42,554 psi | 75% | 2411 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 44,541 psi | 79% | 2438 fps | 95.2% |
| Accurate 3100 | <<locked>> | 96% | 36,579 psi | 65% | 2395 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 40,248 psi | 71% | 2408 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 31,546 psi | 56% | 2297 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 45,774 psi | 81% | 2513 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 80% | 39,073 psi | 69% | 2375 fps | 98.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,805 psi | 85% | 2516 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,771 psi | 74% | 2549 fps | 98.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,769 psi | 69% | 2398 fps | 99.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,481 psi | 73% | 2454 fps | 98.7% |
| Alliant Reloder-16 | 39.2 gr | 82% | 32,126 psi | 57% | 2310 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 33,547 psi | 59% | 2375 fps | 97.7% |
| Alliant Reloder-23 | <<locked>> | 90% | 29,530 psi | 52% | 2277 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 92% | 33,837 psi | 60% | 2438 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,020 psi | 80% | 2520 fps | 98.9% |
| Bofors RP3 | <<locked>> | 80% | 38,566 psi | 68% | 2405 fps | 99.2% |
| Bofors RP7 | <<locked>> | 88% | 44,628 psi | 79% | 2477 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,876 psi | 83% | 2543 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,218 psi | 69% | 2405 fps | 97.1% |
| Hodgdon H414 | <<locked>> | 88% | 41,452 psi | 73% | 2500 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 46,209 psi | 82% | 2523 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 27,717 psi | 49% | 2169 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,380 psi | 75% | 2503 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 90% | 43,859 psi | 78% | 2569 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,513 psi | 47% | 1430 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,382 psi | 78% | 2480 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 46,093 psi | 81% | 2513 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,002 psi | 72% | 2408 fps | 98.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,337 psi | 77% | 2425 fps | 95.9% |
| IMR 4350 | <<locked>> | 92% | 44,744 psi | 79% | 2503 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 40,901 psi | 72% | 2408 fps | 95% |
| IMR 4831 | <<locked>> | 84% | 32,764 psi | 58% | 2310 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 42,482 psi | 75% | 2484 fps | 99.3% |
| IMR 8208 XBR | <<locked>> | 80% | 47,805 psi | 85% | 2516 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 45,063 psi | 80% | 2493 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,861 psi | 81% | 2454 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 41,046 psi | 73% | 2411 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 35,926 psi | 64% | 2313 fps | 95.1% |
| Lovex S070 | <<locked>> | 88% | 40,944 psi | 72% | 2434 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 45,005 psi | 80% | 2470 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 45,310 psi | 80% | 2474 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,843 psi | 72% | 2444 fps | 99% |
| Norma MRP | <<locked>> | 98% | 41,916 psi | 74% | 2582 fps | 95.2% |
| Norma URP | <<locked>> | 82% | 32,082 psi | 57% | 2300 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 40,509 psi | 72% | 2461 fps | 98.8% |
| Ramshot Hunter | 44.6 gr | 88% | 38,043 psi | 67% | 2441 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 47,761 psi | 84% | 2530 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,326 psi | 84% | 2546 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,006 psi | 48% | 1467 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 39,537 psi | 70% | 2388 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,830 psi | 77% | 2556 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 35,694 psi | 63% | 2438 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 33,649 psi | 59% | 2365 fps | 95.5% |
| ReloadSwiss RS 70 | 44.9 gr | 86% | 35,882 psi | 63% | 2421 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 42,743 psi | 76% | 2425 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 36,201 psi | 64% | 2352 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 44,628 psi | 79% | 2477 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 35,926 psi | 64% | 2313 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,063 psi | 80% | 2493 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,046 psi | 73% | 2411 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 40,944 psi | 72% | 2434 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,072 psi | 66% | 2398 fps | 98.1% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,209 psi | 82% | 2507 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,266 psi | 78% | 2487 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,238 psi | 82% | 2418 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,566 psi | 68% | 2300 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 42,714 psi | 76% | 2408 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 45,876 psi | 81% | 2421 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,803 psi | 81% | 2500 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 37,043 psi | 65% | 2356 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 26,890 psi | 48% | 2201 fps | 96.5% |
| Somchem S385 | <<locked>> | 98% | 45,020 psi | 80% | 2543 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 46,615 psi | 82% | 2411 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,380 psi | 75% | 2402 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,888 psi | 76% | 2415 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,157 psi | 62% | 2297 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 82% | 33,373 psi | 59% | 2300 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 41,336 psi | 73% | 2408 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 32,909 psi | 58% | 2303 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 88% | 29,733 psi | 53% | 2293 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,067 psi | 55% | 2228 fps | 97% |
| Winchester 760 | <<locked>> | 88% | 41,452 psi | 73% | 2500 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 92% | 27,775 psi | 49% | 2290 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,932 psi | 78% | 2493 fps | 99.7% |
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 85 powders for 7 x 57 loaded with the .284 | 160gr | Winchester FailSafe. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,717 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,717 fps. Accurate 3100 gives the best case fill at 100 %, and 85 of the 85 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 1:11.5 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 | Winchester FailSafe 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.