Load Specifications
Load data in caliber 7 x 57 with .284 | 177gr | Brenneke TIG 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 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% | 49,893 psi | 88% | 2392 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 48,399 psi | 86% | 2398 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,195 psi | 83% | 2474 fps | 98.9% |
| Accurate 4064 | <<locked>> | 84% | 50,314 psi | 89% | 2441 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 50,024 psi | 88% | 2526 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 86% | 50,807 psi | 90% | 2464 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 48,138 psi | 85% | 2507 fps | 96.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 49,342 psi | 87% | 2569 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 48,138 psi | 85% | 2441 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 48,428 psi | 86% | 2457 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 50,952 psi | 90% | 2575 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 48,414 psi | 86% | 2549 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 50,285 psi | 89% | 2546 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,398 psi | 84% | 2546 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,440 psi | 79% | 2493 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,247 psi | 69% | 2421 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,270 psi | 89% | 2661 fps | 100% |
| Bofors RP3 | <<locked>> | 84% | 48,312 psi | 85% | 2451 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,398 psi | 84% | 2546 fps | 96.9% |
| Bofors RP7 | <<locked>> | 88% | 48,617 psi | 86% | 2434 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 84% | 49,008 psi | 87% | 2464 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 90% | 48,936 psi | 87% | 2520 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 88% | 49,676 psi | 88% | 2490 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 51,039 psi | 90% | 2510 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 49,864 psi | 88% | 2500 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 48,559 psi | 86% | 2546 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,143 psi | 64% | 1535 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 50,531 psi | 89% | 2451 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 49,922 psi | 88% | 2431 fps | 98.5% |
| IMR 4350 | <<locked>> | 92% | 48,921 psi | 86% | 2464 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 50,285 psi | 89% | 2464 fps | 98.5% |
| IMR 4831 | <<locked>> | 94% | 50,372 psi | 89% | 2516 fps | 99.9% |
| IMR 4895 | <<locked>> | 82% | 49,632 psi | 88% | 2484 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 50,618 psi | 89% | 2448 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 49,951 psi | 88% | 2461 fps | 99.3% |
| Lovex S070 | <<locked>> | 92% | 50,894 psi | 90% | 2497 fps | 98.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,262 psi | 69% | 2339 fps | 97.3% |
| Norma 203B | <<locked>> | 84% | 50,879 psi | 90% | 2493 fps | 100% |
| Norma 204 | <<locked>> | 92% | 48,834 psi | 86% | 2500 fps | 96.7% |
| Norma MRPᴾ | <<locked>> | 100% | 49,951 psi | 88% | 2621 fps | 98.7% |
| Norma URP | <<locked>> | 92% | 49,240 psi | 87% | 2516 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 51,097 psi | 90% | 2516 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 51,155 psi | 90% | 2562 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,666 psi | 65% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 49,255 psi | 87% | 2451 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 48,225 psi | 85% | 2546 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 49,414 psi | 87% | 2543 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 48,414 psi | 86% | 2566 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 82% | 49,632 psi | 88% | 2415 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 48,472 psi | 86% | 2448 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 49,908 psi | 88% | 2484 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 98% | 49,458 psi | 87% | 2533 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 88% | 48,617 psi | 86% | 2434 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 49,951 psi | 88% | 2461 fps | 99.3% |
| Shooters World Precision | <<locked>> | 84% | 50,618 psi | 89% | 2448 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 50,894 psi | 90% | 2497 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 49,937 psi | 88% | 2503 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 50,488 psi | 89% | 2359 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 49,705 psi | 88% | 2418 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 48,994 psi | 87% | 2530 fps | 97.2% |
| Somchem S355 | <<locked>> | 86% | 49,023 psi | 87% | 2451 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 50,908 psi | 90% | 2562 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 50,169 psi | 89% | 2516 fps | 98.1% |
| Vihtavuori N135 | <<locked>> | 82% | 49,443 psi | 87% | 2379 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 49,879 psi | 88% | 2395 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 49,908 psi | 88% | 2428 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 48,124 psi | 85% | 2464 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 45,977 psi | 81% | 2441 fps | 96.9% |
| Vihtavuori N540 | <<locked>> | 84% | 51,155 psi | 90% | 2434 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 50,183 psi | 89% | 2513 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,850 psi | 88% | 2566 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 50,676 psi | 90% | 2484 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 49,269 psi | 87% | 2526 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,929 psi | 71% | 2530 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,169 psi | 89% | 2507 fps | 97.1% |
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% | 47,021 psi | 83% | 2352 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,150 psi | 80% | 2346 fps | 96.9% |
| Accurate 3100 | <<locked>> | 90% | 33,823 psi | 60% | 2231 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 44,512 psi | 79% | 2356 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,127 psi | 59% | 2224 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 80% | 42,540 psi | 75% | 2333 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 42,322 psi | 75% | 2405 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,934 psi | 81% | 2513 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,598 psi | 75% | 2352 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,426 psi | 80% | 2411 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,069 psi | 58% | 2238 fps | 97.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,028 psi | 65% | 2349 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 41,843 psi | 74% | 2402 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 41,655 psi | 74% | 2444 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 82% | 25,527 psi | 45% | 2067 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 94% | 32,547 psi | 58% | 2264 fps | 95.3% |
| Alliant Reloder-26 | 45.8 gr | 86% | 30,908 psi | 55% | 2270 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 42,322 psi | 75% | 2359 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 41,655 psi | 74% | 2444 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 37,913 psi | 67% | 2244 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 43,105 psi | 76% | 2369 fps | 99% |
| Hodgdon H414 | <<locked>> | 82% | 37,739 psi | 67% | 2320 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 82% | 40,814 psi | 72% | 2336 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,458 psi | 54% | 2146 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,746 psi | 83% | 2454 fps | 100% |
| Hodgdon Superformance | 46.1 gr | 84% | 39,334 psi | 70% | 2379 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,818 psi | 47% | 1365 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,730 psi | 79% | 2362 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,876 psi | 83% | 2382 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 38,232 psi | 68% | 2277 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,160 psi | 69% | 2270 fps | 96% |
| IMR 4831 | <<locked>> | 80% | 32,198 psi | 57% | 2188 fps | 96.9% |
| IMR 4895 | <<locked>> | 80% | 46,586 psi | 82% | 2434 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 44,570 psi | 79% | 2356 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,941 psi | 65% | 2234 fps | 96.9% |
| Lovex S070 | <<locked>> | 80% | 35,070 psi | 62% | 2211 fps | 95% |
| Lovex S071 | <<locked>> | 94% | 32,460 psi | 57% | 2201 fps | 95% |
| Norma 203B | <<locked>> | 80% | 44,802 psi | 79% | 2398 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 42,902 psi | 76% | 2398 fps | 95.2% |
| Norma MRP | <<locked>> | 92% | 38,058 psi | 67% | 2402 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 33,315 psi | 59% | 2224 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 80% | 44,672 psi | 79% | 2418 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 34,476 psi | 61% | 2260 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,383 psi | 48% | 1401 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,178 psi | 76% | 2352 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,363 psi | 70% | 2398 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 32,735 psi | 58% | 2238 fps | 96.7% |
| ReloadSwiss RS 70 | 42.2 gr | 80% | 32,430 psi | 57% | 2241 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 46,557 psi | 82% | 2369 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,059 psi | 71% | 2313 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 46,818 psi | 83% | 2434 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 92% | 40,538 psi | 72% | 2382 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 37,913 psi | 67% | 2244 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,941 psi | 65% | 2234 fps | 96.9% |
| Shooters World Precision | <<locked>> | 80% | 44,570 psi | 79% | 2356 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 35,070 psi | 62% | 2211 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,915 psi | 72% | 2359 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,032 psi | 74% | 2241 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 35,984 psi | 64% | 2178 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 42,859 psi | 76% | 2428 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 40,698 psi | 72% | 2316 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 29,907 psi | 53% | 2185 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 38,754 psi | 69% | 2323 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 46,586 psi | 82% | 2343 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,789 psi | 83% | 2352 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,696 psi | 68% | 2254 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 34,635 psi | 61% | 2224 fps | 97.4% |
| Vihtavuori N165 | <<locked>> | 96% | 40,364 psi | 71% | 2343 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 45,121 psi | 80% | 2349 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,185 psi | 60% | 2228 fps | 97.1% |
| Vihtavuori N555 | <<locked>> | 82% | 27,601 psi | 49% | 2133 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,982 psi | 60% | 2201 fps | 99% |
| Winchester 760 | <<locked>> | 82% | 37,739 psi | 67% | 2320 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,541 psi | 45% | 2139 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 96% | 43,569 psi | 77% | 2402 fps | 95.5% |
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 75 powders for 7 x 57 loaded with the .284 | 177gr | Brenneke TIG. Alliant Reloder-26 delivers the highest muzzle velocity at 2,661 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,661 fps. Accurate 3100 gives the best case fill at 100 %, and 75 of the 75 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 177.0 gr projectile in 0.284" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-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 | 177gr | Brenneke TIG 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.