Load Specifications
Load data in caliber 7 x 57 with .284 | 175gr | Sierra MatchKing bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance 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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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% | 50,241 psi | 89% | 2395 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 48,704 psi | 86% | 2392 fps | 97.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,511 psi | 77% | 2411 fps | 97.8% |
| Accurate 4064 | <<locked>> | 86% | 50,372 psi | 89% | 2441 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 49,574 psi | 88% | 2516 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 50,430 psi | 89% | 2461 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 48,414 psi | 86% | 2421 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 98% | 48,341 psi | 85% | 2500 fps | 96.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 49,545 psi | 88% | 2566 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 48,385 psi | 86% | 2441 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 48,689 psi | 86% | 2457 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 51,068 psi | 90% | 2569 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 48,385 psi | 86% | 2546 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 50,154 psi | 89% | 2536 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,408 psi | 73% | 2438 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 36,622 psi | 65% | 2349 fps | 96.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,557 psi | 82% | 2595 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 49,719 psi | 88% | 2474 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 48,588 psi | 86% | 2454 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 48,965 psi | 87% | 2431 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 86% | 49,197 psi | 87% | 2461 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 92% | 48,965 psi | 87% | 2513 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 90% | 49,690 psi | 88% | 2480 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 82% | 50,908 psi | 90% | 2470 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 50,734 psi | 90% | 2503 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 50,198 psi | 89% | 2503 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 48,863 psi | 86% | 2543 fps | 97.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,984 psi | 64% | 1522 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 48,530 psi | 86% | 2425 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 51,082 psi | 90% | 2451 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 50,952 psi | 90% | 2451 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 50,546 psi | 89% | 2431 fps | 98.2% |
| IMR 4350 | <<locked>> | 94% | 49,110 psi | 87% | 2457 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 50,430 psi | 89% | 2457 fps | 98.1% |
| IMR 4831 | <<locked>> | 96% | 50,415 psi | 89% | 2513 fps | 99.8% |
| IMR 4895 | <<locked>> | 84% | 49,879 psi | 88% | 2484 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 49,806 psi | 88% | 2438 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 49,850 psi | 88% | 2395 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 50,966 psi | 90% | 2448 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 49,995 psi | 88% | 2454 fps | 99.1% |
| Lovex S070 | <<locked>> | 94% | 50,720 psi | 90% | 2487 fps | 98.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 36,361 psi | 64% | 2280 fps | 95.9% |
| Norma 201 | <<locked>> | 82% | 49,182 psi | 87% | 2411 fps | 100% |
| Norma 202 | <<locked>> | 82% | 49,574 psi | 88% | 2411 fps | 100% |
| Norma 203B | <<locked>> | 84% | 47,979 psi | 85% | 2444 fps | 100% |
| Norma 204 | <<locked>> | 94% | 49,211 psi | 87% | 2497 fps | 96.2% |
| Norma MRPᴾ | <<locked>> | 100% | 46,369 psi | 82% | 2552 fps | 97.5% |
| Norma URP | <<locked>> | 94% | 48,820 psi | 86% | 2507 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 84% | 48,051 psi | 85% | 2467 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 96% | 50,749 psi | 90% | 2549 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,521 psi | 65% | 1558 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 49,617 psi | 88% | 2451 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 48,660 psi | 86% | 2510 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 48,153 psi | 85% | 2546 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 49,110 psi | 87% | 2536 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 48,559 psi | 86% | 2559 fps | 99.4% |
| Rottweil R 902 | <<locked>> | 84% | 49,864 psi | 88% | 2415 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 48,443 psi | 86% | 2448 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 49,110 psi | 87% | 2520 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 90% | 48,965 psi | 87% | 2431 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 92% | 49,995 psi | 88% | 2454 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 82% | 49,806 psi | 88% | 2438 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 50,966 psi | 90% | 2448 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 50,720 psi | 90% | 2487 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 49,792 psi | 88% | 2500 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 51,068 psi | 90% | 2461 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 48,646 psi | 86% | 2434 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 50,633 psi | 90% | 2359 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 50,662 psi | 90% | 2359 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 49,995 psi | 88% | 2411 fps | 98.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 48,646 psi | 86% | 2516 fps | 96.6% |
| Somchem S335 | <<locked>> | 82% | 49,995 psi | 88% | 2356 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 50,618 psi | 89% | 2454 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 49,052 psi | 87% | 2448 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 50,473 psi | 89% | 2559 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,966 psi | 88% | 2507 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 82% | 51,024 psi | 90% | 2346 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 49,792 psi | 88% | 2385 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 50,212 psi | 89% | 2398 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 50,140 psi | 89% | 2428 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 51,111 psi | 90% | 2503 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 84% | 48,486 psi | 86% | 2395 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 50,328 psi | 89% | 2510 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,847 psi | 81% | 2503 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 51,024 psi | 90% | 2484 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 49,284 psi | 87% | 2520 fps | 98.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,202 psi | 66% | 2464 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 48,486 psi | 86% | 2444 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% | 44,034 psi | 78% | 2310 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,989 psi | 76% | 2297 fps | 95.7% |
| Accurate 3100 | <<locked>> | 94% | 35,578 psi | 63% | 2267 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 41,655 psi | 74% | 2313 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,690 psi | 54% | 2169 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 47,181 psi | 83% | 2415 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 40,132 psi | 71% | 2283 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 96% | 45,165 psi | 80% | 2444 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,207 psi | 76% | 2457 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,016 psi | 71% | 2306 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,815 psi | 76% | 2362 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 31,241 psi | 55% | 2185 fps | 96% |
| Alliant Reloder-17 | 39.5 gr | 80% | 34,679 psi | 61% | 2293 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 96% | 44,512 psi | 79% | 2441 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 86% | 27,093 psi | 48% | 2106 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 98% | 34,548 psi | 61% | 2303 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,837 psi | 58% | 2310 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,528 psi | 82% | 2425 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 39,726 psi | 70% | 2310 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 40,611 psi | 72% | 2290 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 40,712 psi | 72% | 2320 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 84% | 37,565 psi | 66% | 2310 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 86% | 43,816 psi | 77% | 2382 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 47,630 psi | 84% | 2421 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,616 psi | 51% | 2093 fps | 96.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,787 psi | 77% | 2405 fps | 100% |
| Hodgdon Superformance | 44.9 gr | 86% | 39,682 psi | 70% | 2375 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,789 psi | 47% | 1355 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,716 psi | 81% | 2382 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 47,877 psi | 85% | 2411 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,177 psi | 75% | 2313 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,614 psi | 79% | 2336 fps | 97% |
| IMR 4350 | <<locked>> | 88% | 40,814 psi | 72% | 2316 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,595 psi | 70% | 2270 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 29,979 psi | 53% | 2136 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 43,888 psi | 78% | 2388 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 46,804 psi | 83% | 2395 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,978 psi | 83% | 2352 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 42,250 psi | 75% | 2316 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 34,737 psi | 61% | 2182 fps | 95.6% |
| Lovex S070 | <<locked>> | 84% | 37,420 psi | 66% | 2254 fps | 95.3% |
| Lovex S071 | <<locked>> | 98% | 34,069 psi | 60% | 2234 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 46,296 psi | 82% | 2369 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,659 psi | 82% | 2369 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,192 psi | 75% | 2352 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 45,963 psi | 81% | 2444 fps | 95.4% |
| Norma MRP | <<locked>> | 96% | 40,509 psi | 72% | 2441 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 31,082 psi | 55% | 2172 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 41,974 psi | 74% | 2369 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 34,534 psi | 61% | 2254 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,064 psi | 48% | 1388 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,727 psi | 72% | 2300 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,672 psi | 81% | 2461 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,898 psi | 65% | 2349 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 30,414 psi | 54% | 2182 fps | 95.2% |
| ReloadSwiss RS 70 | 41.1 gr | 82% | 32,590 psi | 58% | 2238 fps | 95.1% |
| Rottweil R 902 | <<locked>> | 80% | 44,208 psi | 78% | 2329 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 37,478 psi | 66% | 2264 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 96% | 43,033 psi | 76% | 2421 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 84% | 40,611 psi | 72% | 2290 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,737 psi | 61% | 2182 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,804 psi | 83% | 2395 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,250 psi | 75% | 2316 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 37,420 psi | 66% | 2254 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,508 psi | 68% | 2313 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,776 psi | 84% | 2415 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,818 psi | 81% | 2392 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,601 psi | 84% | 2316 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,784 psi | 70% | 2205 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 38,609 psi | 68% | 2224 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 42,641 psi | 75% | 2415 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 47,108 psi | 83% | 2316 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,384 psi | 84% | 2405 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 38,232 psi | 68% | 2267 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 27,891 psi | 49% | 2129 fps | 98% |
| Somchem S385 | <<locked>> | 94% | 41,002 psi | 72% | 2359 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 47,993 psi | 85% | 2306 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,888 psi | 78% | 2303 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,193 psi | 78% | 2313 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,318 psi | 64% | 2208 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 32,387 psi | 57% | 2172 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 80% | 42,757 psi | 76% | 2310 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,068 psi | 57% | 2175 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 86% | 29,196 psi | 52% | 2175 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,097 psi | 57% | 2152 fps | 98.2% |
| Winchester 760 | <<locked>> | 84% | 37,811 psi | 67% | 2316 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,977 psi | 48% | 2178 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,353 psi | 80% | 2395 fps | 100% |
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 88 powders for 7 x 57 loaded with the .284 | 175gr | Sierra MatchKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,595 fps; across all powders the maximum-charge window runs from 1,522 fps to 2,595 fps. Accurate 3100 gives the best case fill at 100 %, and 88 of the 88 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 175.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for 7 x 57 with the .284 | 175gr | 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.