Load Specifications
Load data in caliber 7 x 57 with .284 | 160gr | Winchester Silvertip bullet and 75 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-26 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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 49,153 psi | 87% | 2530 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 50,995 psi | 90% | 2579 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,543 psi | 82% | 2598 fps | 98.2% |
| Accurate 4064 | <<locked>> | 84% | 49,661 psi | 88% | 2579 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 49,182 psi | 87% | 2661 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 86% | 50,125 psi | 89% | 2602 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 98% | 50,734 psi | 90% | 2690 fps | 96.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 48,501 psi | 86% | 2703 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 50,401 psi | 89% | 2625 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 50,807 psi | 90% | 2641 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 50,241 psi | 89% | 2713 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 50,908 psi | 90% | 2736 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 49,559 psi | 88% | 2677 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,019 psi | 78% | 2628 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,537 psi | 68% | 2533 fps | 96.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,690 psi | 88% | 2795 fps | 99.7% |
| Bofors RP3 | <<locked>> | 86% | 51,010 psi | 90% | 2638 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 50,879 psi | 90% | 2615 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 84% | 48,356 psi | 85% | 2598 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 90% | 48,138 psi | 85% | 2648 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 88% | 48,979 psi | 87% | 2618 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 50,111 psi | 89% | 2644 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 49,182 psi | 87% | 2638 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 47,964 psi | 85% | 2677 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,100 psi | 64% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 50,633 psi | 90% | 2608 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 49,763 psi | 88% | 2585 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 49,371 psi | 87% | 2566 fps | 97.8% |
| IMR 4350 | <<locked>> | 92% | 48,283 psi | 85% | 2592 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 49,574 psi | 88% | 2595 fps | 97.8% |
| IMR 4831 | <<locked>> | 94% | 49,748 psi | 88% | 2654 fps | 99.7% |
| IMR 4895 | <<locked>> | 82% | 49,081 psi | 87% | 2621 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 49,792 psi | 88% | 2585 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 49,371 psi | 87% | 2595 fps | 98.8% |
| Lovex S070 | <<locked>> | 92% | 50,038 psi | 88% | 2625 fps | 98.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 38,595 psi | 68% | 2457 fps | 96.3% |
| Norma 203B | <<locked>> | 84% | 50,096 psi | 89% | 2631 fps | 100% |
| Norma 204 | <<locked>> | 92% | 48,428 psi | 86% | 2635 fps | 95.8% |
| Norma MRPᴾ | <<locked>> | 100% | 49,168 psi | 87% | 2749 fps | 97.9% |
| Norma URP | <<locked>> | 92% | 48,269 psi | 85% | 2644 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 84% | 50,343 psi | 89% | 2651 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 50,183 psi | 89% | 2690 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,564 psi | 65% | 1680 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 48,457 psi | 86% | 2582 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 50,705 psi | 90% | 2736 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 48,733 psi | 86% | 2677 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 47,718 psi | 84% | 2697 fps | 99.2% |
| Rottweil R 902 | <<locked>> | 82% | 48,791 psi | 86% | 2549 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 50,879 psi | 90% | 2631 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 48,457 psi | 86% | 2661 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 90% | 50,879 psi | 90% | 2615 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 49,371 psi | 87% | 2595 fps | 98.8% |
| Shooters World Precision | <<locked>> | 84% | 49,792 psi | 88% | 2585 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 50,038 psi | 88% | 2625 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 49,226 psi | 87% | 2641 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 50,865 psi | 90% | 2621 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 49,734 psi | 88% | 2497 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 48,921 psi | 86% | 2543 fps | 97.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 47,993 psi | 85% | 2654 fps | 96.2% |
| Somchem S355 | <<locked>> | 86% | 48,225 psi | 85% | 2585 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 49,951 psi | 88% | 2700 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 49,298 psi | 87% | 2644 fps | 97.3% |
| Vihtavuori N135 | <<locked>> | 82% | 48,747 psi | 86% | 2520 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 49,139 psi | 87% | 2533 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 49,095 psi | 87% | 2562 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 50,575 psi | 89% | 2644 fps | 99.6% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,368 psi | 80% | 2562 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 84% | 50,502 psi | 89% | 2572 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 49,545 psi | 88% | 2648 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,008 psi | 87% | 2700 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 50,169 psi | 89% | 2621 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 48,443 psi | 86% | 2654 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,320 psi | 70% | 2651 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 50,546 psi | 89% | 2625 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,342 psi | 87% | 2635 fps | 96.1% |
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% | 46,209 psi | 82% | 2487 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,527 psi | 79% | 2470 fps | 95.9% |
| Accurate 3100 | <<locked>> | 92% | 35,520 psi | 63% | 2392 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 43,714 psi | 77% | 2487 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,503 psi | 57% | 2336 fps | 96% |
| ADI AR 2208 | <<locked>> | 80% | 41,916 psi | 74% | 2457 fps | 99% |
| ADI AR 2209 | <<locked>> | 96% | 47,442 psi | 84% | 2635 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,339 psi | 80% | 2648 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,843 psi | 74% | 2480 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,802 psi | 79% | 2543 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,503 psi | 57% | 2346 fps | 96.1% |
| Alliant Reloder-17 | 44.5 gr | 80% | 36,361 psi | 64% | 2467 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 96% | 46,731 psi | 83% | 2628 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,803 psi | 47% | 2218 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 98% | 36,332 psi | 64% | 2480 fps | 95.9% |
| Alliant Reloder-26 | 50.1 gr | 88% | 32,416 psi | 57% | 2428 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 41,916 psi | 74% | 2490 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 42,322 psi | 75% | 2464 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 42,337 psi | 75% | 2493 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 84% | 39,624 psi | 70% | 2490 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 45,876 psi | 81% | 2566 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,921 psi | 53% | 2254 fps | 96.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,992 psi | 81% | 2585 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 41,539 psi | 73% | 2552 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,876 psi | 48% | 1463 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,674 psi | 84% | 2562 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,063 psi | 78% | 2490 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,253 psi | 82% | 2510 fps | 97.2% |
| IMR 4350 | <<locked>> | 88% | 42,656 psi | 75% | 2493 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 38,769 psi | 69% | 2392 fps | 95% |
| IMR 4831 | <<locked>> | 80% | 31,488 psi | 56% | 2297 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 45,905 psi | 81% | 2569 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 44,193 psi | 78% | 2493 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,303 psi | 64% | 2346 fps | 95.8% |
| Lovex S070 | <<locked>> | 84% | 39,015 psi | 69% | 2421 fps | 95.5% |
| Lovex S071 | <<locked>> | 98% | 36,230 psi | 64% | 2408 fps | 95.5% |
| Norma 203B | <<locked>> | 80% | 44,150 psi | 78% | 2530 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 45,281 psi | 80% | 2579 fps | 95% |
| Norma MRP | <<locked>> | 94% | 40,161 psi | 71% | 2575 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 32,648 psi | 58% | 2333 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 80% | 44,092 psi | 78% | 2549 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 36,303 psi | 64% | 2428 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,369 psi | 48% | 1503 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,583 psi | 75% | 2477 fps | 96.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,682 psi | 68% | 2526 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,111 psi | 57% | 2349 fps | 95.5% |
| ReloadSwiss RS 70 | 46.3 gr | 82% | 34,127 psi | 60% | 2408 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 45,963 psi | 81% | 2503 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,262 psi | 69% | 2434 fps | 99.4% |
| Rottweil R 905 | <<locked>> | 96% | 45,484 psi | 80% | 2608 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 84% | 42,322 psi | 75% | 2464 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,303 psi | 64% | 2346 fps | 95.8% |
| Shooters World Precision | <<locked>> | 80% | 44,193 psi | 78% | 2493 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 39,015 psi | 69% | 2421 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,335 psi | 71% | 2484 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,659 psi | 84% | 2569 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,321 psi | 73% | 2369 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 40,321 psi | 71% | 2392 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 45,049 psi | 80% | 2602 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 40,001 psi | 71% | 2438 fps | 99.4% |
| Somchem S365 | <<locked>> | 80% | 29,414 psi | 52% | 2297 fps | 98.2% |
| Somchem S385 | <<locked>> | 92% | 40,582 psi | 72% | 2487 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 45,774 psi | 81% | 2474 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,977 psi | 81% | 2484 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,956 psi | 67% | 2372 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 34,084 psi | 60% | 2339 fps | 96.4% |
| Vihtavuori N165 | <<locked>> | 98% | 42,395 psi | 75% | 2510 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 44,382 psi | 78% | 2480 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,518 psi | 59% | 2336 fps | 96% |
| Vihtavuori N555 | <<locked>> | 84% | 28,993 psi | 51% | 2290 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,504 psi | 59% | 2313 fps | 98.3% |
| Winchester 760 | <<locked>> | 84% | 39,624 psi | 70% | 2490 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,803 psi | 47% | 2290 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,326 psi | 84% | 2575 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 45,948 psi | 81% | 2575 fps | 95.2% |
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 91 powders for 7 x 57 loaded with the .284 | 160gr | Winchester Silvertip. Alliant Reloder-26 delivers the highest muzzle velocity at 2,795 fps; across all powders the maximum-charge window runs from 1,644 fps to 2,795 fps. Accurate 3100 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.284" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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-26, Alliant Reloder-17 rank at the top here: for 7 x 57 with the .284 | 160gr | Winchester Silvertip they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 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.