Load Specifications
Load data in caliber 7 x 57 with .284 | 180gr | Sierra MatchKing bullet and 86 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-17 and ReloadSwiss RS 60.
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% | 50,937 psi | 90% | 2365 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 49,617 psi | 88% | 2372 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,744 psi | 79% | 2395 fps | 98.3% |
| Accurate 4064 | <<locked>> | 84% | 48,037 psi | 85% | 2372 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 50,821 psi | 90% | 2497 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 86% | 48,950 psi | 87% | 2395 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 49,052 psi | 87% | 2477 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 50,589 psi | 89% | 2546 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 49,298 psi | 87% | 2418 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 49,574 psi | 88% | 2434 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 48,747 psi | 86% | 2500 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 49,501 psi | 88% | 2526 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 47,964 psi | 85% | 2467 fps | 96.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 44,947 psi | 79% | 2461 fps | 96% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,453 psi | 75% | 2421 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,217 psi | 66% | 2336 fps | 97% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,572 psi | 84% | 2575 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 50,705 psi | 90% | 2451 fps | 99.9% |
| Bofors RP3 | <<locked>> | 86% | 49,574 psi | 88% | 2431 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 44,947 psi | 79% | 2461 fps | 96% |
| Bofors RP7 | <<locked>> | 90% | 49,559 psi | 88% | 2408 fps | 97.8% |
| Hodgdon H380 | <<locked>> | 86% | 50,169 psi | 89% | 2441 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 92% | 50,082 psi | 89% | 2493 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 90% | 50,734 psi | 90% | 2461 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 48,399 psi | 86% | 2434 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 50,894 psi | 90% | 2474 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 49,690 psi | 88% | 2520 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,042 psi | 64% | 1499 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 49,385 psi | 87% | 2398 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 48,457 psi | 86% | 2379 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 48,109 psi | 85% | 2359 fps | 98% |
| IMR 4350 | <<locked>> | 94% | 49,821 psi | 88% | 2434 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,428 psi | 86% | 2392 fps | 98% |
| IMR 4831 | <<locked>> | 94% | 48,196 psi | 85% | 2444 fps | 99.8% |
| IMR 4895 | <<locked>> | 84% | 50,821 psi | 90% | 2457 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 50,778 psi | 90% | 2411 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 50,589 psi | 89% | 2372 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 48,559 psi | 86% | 2379 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 50,937 psi | 90% | 2431 fps | 99.3% |
| Lovex S070 | <<locked>> | 92% | 48,762 psi | 86% | 2421 fps | 98.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,072 psi | 66% | 2264 fps | 96.5% |
| Norma 201 | <<locked>> | 82% | 49,966 psi | 88% | 2385 fps | 100% |
| Norma 202 | <<locked>> | 82% | 50,430 psi | 89% | 2385 fps | 100% |
| Norma 203B | <<locked>> | 84% | 48,878 psi | 86% | 2421 fps | 100% |
| Norma 204 | <<locked>> | 94% | 50,024 psi | 88% | 2477 fps | 96.7% |
| Norma MRPᴾ | <<locked>> | 100% | 47,282 psi | 84% | 2533 fps | 98% |
| Norma URP | <<locked>> | 94% | 49,966 psi | 88% | 2484 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 49,037 psi | 87% | 2444 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 48,588 psi | 86% | 2484 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,593 psi | 65% | 1535 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 50,227 psi | 89% | 2425 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 49,676 psi | 88% | 2487 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 49,211 psi | 87% | 2523 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 50,415 psi | 89% | 2516 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 49,385 psi | 87% | 2536 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 50,705 psi | 90% | 2388 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 49,487 psi | 87% | 2425 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 50,807 psi | 90% | 2454 fps | 95.8% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,966 psi | 88% | 2500 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 90% | 49,559 psi | 88% | 2408 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 50,937 psi | 90% | 2431 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 82% | 50,778 psi | 90% | 2411 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 48,559 psi | 86% | 2379 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 48,762 psi | 86% | 2421 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 50,865 psi | 90% | 2477 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 49,516 psi | 88% | 2411 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 48,428 psi | 86% | 2293 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 50,647 psi | 90% | 2388 fps | 98.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,487 psi | 87% | 2493 fps | 97.1% |
| Somchem S335 | <<locked>> | 82% | 50,749 psi | 90% | 2329 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 50,024 psi | 88% | 2425 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 48,211 psi | 85% | 2490 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,850 psi | 90% | 2484 fps | 98% |
| Vihtavuori N135 | <<locked>> | 84% | 50,691 psi | 90% | 2356 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 51,111 psi | 90% | 2372 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 50,865 psi | 90% | 2402 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 48,805 psi | 86% | 2434 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 43,859 psi | 78% | 2362 fps | 96.1% |
| Vihtavuori N540 | <<locked>> | 84% | 49,023 psi | 87% | 2369 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 51,126 psi | 90% | 2484 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,065 psi | 83% | 2487 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 48,501 psi | 86% | 2415 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 50,082 psi | 89% | 2493 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,898 psi | 67% | 2448 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 49,153 psi | 87% | 2418 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 47,485 psi | 84% | 2425 fps | 96.2% |
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% | 44,846 psi | 79% | 2287 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,439 psi | 77% | 2274 fps | 96.2% |
| Accurate 3100 | <<locked>> | 92% | 34,011 psi | 60% | 2201 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 42,467 psi | 75% | 2287 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,415 psi | 56% | 2156 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 80% | 40,814 psi | 72% | 2260 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 43,120 psi | 76% | 2375 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,063 psi | 78% | 2438 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,785 psi | 72% | 2283 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,613 psi | 77% | 2339 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,589 psi | 56% | 2162 fps | 96.5% |
| Alliant Reloder-17 | 39.3 gr | 80% | 35,404 psi | 63% | 2277 fps | 99.2% |
| Alliant Reloder-19 | <<locked>> | 94% | 42,569 psi | 75% | 2375 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 42,032 psi | 74% | 2408 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,904 psi | 46% | 2044 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 96% | 33,112 psi | 59% | 2238 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,459 psi | 56% | 2247 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,442 psi | 84% | 2405 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 40,524 psi | 72% | 2290 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 42,032 psi | 74% | 2408 fps | 95.1% |
| Bofors RP7 | <<locked>> | 82% | 38,653 psi | 68% | 2221 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 41,162 psi | 73% | 2293 fps | 98.5% |
| Hodgdon H414 | <<locked>> | 82% | 36,056 psi | 64% | 2247 fps | 95% |
| Hodgdon H4350 | <<locked>> | 84% | 41,785 psi | 74% | 2313 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,182 psi | 52% | 2077 fps | 97.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,715 psi | 79% | 2382 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 40,306 psi | 71% | 2356 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,774 psi | 47% | 1335 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,456 psi | 82% | 2356 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,873 psi | 76% | 2290 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,353 psi | 80% | 2313 fps | 97.5% |
| IMR 4350 | <<locked>> | 86% | 38,972 psi | 69% | 2251 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,913 psi | 67% | 2205 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 30,647 psi | 54% | 2119 fps | 96.2% |
| IMR 4895 | <<locked>> | 80% | 44,715 psi | 79% | 2365 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 47,747 psi | 84% | 2372 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,688 psi | 84% | 2329 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 42,989 psi | 76% | 2293 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,360 psi | 63% | 2162 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 35,650 psi | 63% | 2185 fps | 95% |
| Lovex S071 | <<locked>> | 96% | 32,822 psi | 58% | 2178 fps | 95% |
| Norma 201 | <<locked>> | 80% | 47,079 psi | 83% | 2346 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,442 psi | 84% | 2346 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,989 psi | 76% | 2329 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 43,932 psi | 78% | 2375 fps | 95.2% |
| Norma MRP | <<locked>> | 94% | 38,783 psi | 69% | 2375 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 31,749 psi | 56% | 2156 fps | 96.4% |
| Ramshot Big Game | <<locked>> | 80% | 42,844 psi | 76% | 2349 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 84% | 35,259 psi | 62% | 2241 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,354 psi | 48% | 1371 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,452 psi | 73% | 2280 fps | 97.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,325 psi | 82% | 2434 fps | 99.8% |
| ReloadSwiss RS 60 | 39.3 gr | 80% | 37,637 psi | 67% | 2329 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,096 psi | 55% | 2169 fps | 95.9% |
| ReloadSwiss RS 70 | 40.9 gr | 82% | 33,228 psi | 59% | 2224 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 44,889 psi | 79% | 2303 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,261 psi | 68% | 2244 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 96% | 47,747 psi | 84% | 2408 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 96% | 44,063 psi | 78% | 2405 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 82% | 38,653 psi | 68% | 2221 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,360 psi | 63% | 2162 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,747 psi | 84% | 2372 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,989 psi | 76% | 2293 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 35,650 psi | 63% | 2185 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,044 psi | 69% | 2287 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,325 psi | 82% | 2362 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,437 psi | 71% | 2178 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,738 psi | 65% | 2156 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,656 psi | 77% | 2402 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 47,863 psi | 85% | 2290 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 38,899 psi | 69% | 2244 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 28,456 psi | 50% | 2116 fps | 98.5% |
| Somchem S385 | <<locked>> | 92% | 39,175 psi | 69% | 2293 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 44,686 psi | 79% | 2277 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,976 psi | 80% | 2287 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,028 psi | 65% | 2188 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 33,054 psi | 58% | 2156 fps | 96.8% |
| Vihtavuori N165 | <<locked>> | 98% | 40,959 psi | 72% | 2313 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 43,207 psi | 76% | 2283 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,532 psi | 58% | 2156 fps | 96.3% |
| Vihtavuori N555 | <<locked>> | 84% | 27,847 psi | 49% | 2110 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,735 psi | 58% | 2136 fps | 98.6% |
| Winchester 760 | <<locked>> | 82% | 36,056 psi | 64% | 2247 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,904 psi | 46% | 2116 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,267 psi | 82% | 2375 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 44,541 psi | 79% | 2375 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 86 powders for 7 x 57 loaded with the .284 | 180gr | Sierra MatchKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,575 fps; across all powders the maximum-charge window runs from 1,499 fps to 2,575 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 64–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.284" calls for a 1:10.0 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-17, ReloadSwiss RS 60 rank at the top here: for 7 x 57 with the .284 | 180gr | Sierra MatchKing 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.