Load Specifications
Load data in caliber 7 x 57 with .284 | 166gr | Hornady A-Tip Match bullet and 77 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 Hodgdon Superformance.
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% | 49,617 psi | 88% | 2480 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 48,051 psi | 85% | 2484 fps | 97.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,036 psi | 83% | 2559 fps | 98.5% |
| Accurate 4064 | <<locked>> | 84% | 49,879 psi | 88% | 2530 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 49,472 psi | 87% | 2612 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 86% | 50,647 psi | 90% | 2556 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 51,111 psi | 90% | 2648 fps | 96.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 48,863 psi | 86% | 2657 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 50,981 psi | 90% | 2579 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 48,022 psi | 85% | 2546 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 94% | 50,763 psi | 90% | 2667 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 48,167 psi | 85% | 2641 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 49,995 psi | 88% | 2635 fps | 96.8% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 46,862 psi | 83% | 2628 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,164 psi | 78% | 2579 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,928 psi | 69% | 2497 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,212 psi | 89% | 2753 fps | 99.9% |
| Bofors RP3 | <<locked>> | 84% | 47,979 psi | 85% | 2543 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 46,862 psi | 83% | 2628 fps | 96.2% |
| Bofors RP7 | <<locked>> | 88% | 48,254 psi | 85% | 2520 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 84% | 48,675 psi | 86% | 2552 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 90% | 48,718 psi | 86% | 2608 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 88% | 49,095 psi | 87% | 2572 fps | 96.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 50,778 psi | 90% | 2602 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 49,530 psi | 88% | 2592 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 48,486 psi | 86% | 2638 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,100 psi | 64% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 51,082 psi | 90% | 2562 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 50,169 psi | 89% | 2539 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 49,777 psi | 88% | 2520 fps | 98.1% |
| IMR 4350 | <<locked>> | 92% | 48,776 psi | 86% | 2552 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 49,893 psi | 88% | 2549 fps | 98.1% |
| IMR 4831 | <<locked>> | 94% | 50,082 psi | 89% | 2605 fps | 99.8% |
| IMR 4895 | <<locked>> | 82% | 49,240 psi | 87% | 2572 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 50,256 psi | 89% | 2536 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 49,734 psi | 88% | 2549 fps | 99.1% |
| Lovex S070 | <<locked>> | 92% | 50,488 psi | 89% | 2582 fps | 98.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,146 psi | 69% | 2421 fps | 96.8% |
| Norma 203B | <<locked>> | 84% | 50,633 psi | 90% | 2585 fps | 100% |
| Norma 204 | <<locked>> | 92% | 48,747 psi | 86% | 2592 fps | 96.2% |
| Norma MRPᴾ | <<locked>> | 100% | 49,501 psi | 88% | 2707 fps | 98.2% |
| Norma URP | <<locked>> | 92% | 48,791 psi | 86% | 2602 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 84% | 50,749 psi | 90% | 2605 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 50,923 psi | 90% | 2651 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,593 psi | 65% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 48,805 psi | 86% | 2536 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 47,863 psi | 85% | 2638 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 49,211 psi | 87% | 2635 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 48,153 psi | 85% | 2651 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 82% | 49,124 psi | 87% | 2503 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 48,167 psi | 85% | 2539 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 49,197 psi | 87% | 2621 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 88% | 48,254 psi | 85% | 2520 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 49,734 psi | 88% | 2549 fps | 99.1% |
| Shooters World Precision | <<locked>> | 84% | 50,256 psi | 89% | 2536 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 50,488 psi | 89% | 2582 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 49,661 psi | 88% | 2595 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 51,097 psi | 90% | 2572 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 50,125 psi | 89% | 2451 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 49,385 psi | 87% | 2503 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 48,733 psi | 86% | 2618 fps | 96.7% |
| Somchem S355 | <<locked>> | 86% | 48,486 psi | 86% | 2536 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 50,415 psi | 89% | 2654 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 49,821 psi | 88% | 2602 fps | 97.7% |
| Vihtavuori N135 | <<locked>> | 82% | 49,052 psi | 87% | 2470 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 49,588 psi | 88% | 2487 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 49,748 psi | 88% | 2520 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 50,836 psi | 90% | 2598 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,832 psi | 81% | 2526 fps | 96.4% |
| Vihtavuori N540 | <<locked>> | 84% | 50,778 psi | 90% | 2526 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 50,140 psi | 89% | 2605 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,472 psi | 87% | 2654 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 50,633 psi | 90% | 2579 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 49,008 psi | 87% | 2615 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,856 psi | 70% | 2618 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 50,894 psi | 90% | 2575 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 49,922 psi | 88% | 2595 fps | 96.6% |
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% | 46,572 psi | 82% | 2438 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,962 psi | 79% | 2428 fps | 96.3% |
| Accurate 3100 | <<locked>> | 92% | 35,766 psi | 63% | 2352 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 44,092 psi | 78% | 2441 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,866 psi | 58% | 2300 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 80% | 42,192 psi | 75% | 2415 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 44,875 psi | 79% | 2539 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,614 psi | 81% | 2602 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,163 psi | 75% | 2434 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,179 psi | 80% | 2497 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,750 psi | 58% | 2310 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,579 psi | 65% | 2425 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 44,295 psi | 78% | 2533 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 98% | 44,048 psi | 78% | 2575 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 84% | 26,934 psi | 48% | 2182 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,330 psi | 61% | 2388 fps | 95.4% |
| Alliant Reloder-26 | 49.1 gr | 88% | 32,866 psi | 58% | 2398 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 42,293 psi | 75% | 2448 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 44,048 psi | 78% | 2575 fps | 95.4% |
| Bofors RP7 | <<locked>> | 82% | 40,176 psi | 71% | 2375 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 42,772 psi | 76% | 2451 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 82% | 37,289 psi | 66% | 2395 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 84% | 43,207 psi | 76% | 2467 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,182 psi | 53% | 2215 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,238 psi | 82% | 2539 fps | 100% |
| Hodgdon Superformance | 48.3 gr | 84% | 39,131 psi | 69% | 2457 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,948 psi | 48% | 1430 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,037 psi | 85% | 2513 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,353 psi | 78% | 2444 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,601 psi | 82% | 2467 fps | 97.5% |
| IMR 4350 | <<locked>> | 86% | 40,466 psi | 72% | 2405 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,044 psi | 69% | 2352 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 31,792 psi | 56% | 2260 fps | 96.2% |
| IMR 4895 | <<locked>> | 80% | 46,311 psi | 82% | 2526 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 44,498 psi | 79% | 2448 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,593 psi | 65% | 2310 fps | 96.3% |
| Lovex S070 | <<locked>> | 82% | 37,072 psi | 66% | 2336 fps | 95.2% |
| Lovex S071 | <<locked>> | 96% | 34,403 psi | 61% | 2323 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 44,527 psi | 79% | 2487 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 45,542 psi | 81% | 2536 fps | 95.4% |
| Norma MRP | <<locked>> | 94% | 40,553 psi | 72% | 2539 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 32,938 psi | 58% | 2297 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 44,382 psi | 78% | 2503 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 36,608 psi | 65% | 2388 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,456 psi | 49% | 1467 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,033 psi | 76% | 2438 fps | 97.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,914 psi | 69% | 2480 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,547 psi | 58% | 2313 fps | 96% |
| ReloadSwiss RS 70 | 45.3 gr | 82% | 34,432 psi | 61% | 2372 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 46,224 psi | 82% | 2457 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,595 psi | 70% | 2392 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 94% | 43,004 psi | 76% | 2516 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 82% | 40,176 psi | 71% | 2375 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,593 psi | 65% | 2310 fps | 96.3% |
| Shooters World Precision | <<locked>> | 80% | 44,498 psi | 79% | 2448 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,072 psi | 66% | 2336 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,770 psi | 72% | 2444 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,153 psi | 85% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,539 psi | 73% | 2323 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,087 psi | 67% | 2303 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 42,598 psi | 75% | 2510 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 40,306 psi | 71% | 2395 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 29,704 psi | 53% | 2260 fps | 98.5% |
| Somchem S385 | <<locked>> | 92% | 40,843 psi | 72% | 2448 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 46,021 psi | 81% | 2428 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,340 psi | 82% | 2441 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,261 psi | 68% | 2333 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,374 psi | 61% | 2300 fps | 96.8% |
| Vihtavuori N165 | <<locked>> | 98% | 42,801 psi | 76% | 2470 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 44,802 psi | 79% | 2434 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,895 psi | 60% | 2303 fps | 96.5% |
| Vihtavuori N555 | <<locked>> | 84% | 29,167 psi | 52% | 2251 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,910 psi | 60% | 2280 fps | 98.7% |
| Winchester 760 | <<locked>> | 82% | 37,507 psi | 66% | 2398 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 88% | 26,919 psi | 48% | 2257 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,906 psi | 85% | 2533 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 46,456 psi | 82% | 2539 fps | 95.7% |
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 77 powders for 7 x 57 loaded with the .284 | 166gr | Hornady A-Tip Match. Alliant Reloder-26 delivers the highest muzzle velocity at 2,753 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,753 fps. Accurate 3100 gives the best case fill at 100 %, and 77 of the 77 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 166.0 gr projectile in 0.284" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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, Hodgdon Superformance rank at the top here: for 7 x 57 with the .284 | 166gr | Hornady A-Tip Match 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.