Load Specifications
Load data in caliber 7 x 57 with .284 | 175gr | Sierra GameKing bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Alliant Reloder-16.
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% | 50,981 psi | 90% | 2411 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 49,821 psi | 88% | 2418 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,860 psi | 79% | 2438 fps | 98.2% |
| Accurate 4064 | <<locked>> | 84% | 48,153 psi | 85% | 2415 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 50,778 psi | 90% | 2539 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 86% | 49,298 psi | 87% | 2444 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 49,255 psi | 87% | 2523 fps | 96.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 50,444 psi | 89% | 2589 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 49,327 psi | 87% | 2464 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 49,632 psi | 88% | 2480 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 48,849 psi | 86% | 2543 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 49,472 psi | 87% | 2572 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 48,153 psi | 85% | 2510 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 42,337 psi | 75% | 2461 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 37,347 psi | 66% | 2375 fps | 96.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,747 psi | 84% | 2621 fps | 99.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 50,560 psi | 89% | 2493 fps | 99.9% |
| Bofors RP3 | <<locked>> | 86% | 49,516 psi | 88% | 2474 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 49,777 psi | 88% | 2454 fps | 97.7% |
| Hodgdon H380 | <<locked>> | 86% | 50,415 psi | 89% | 2487 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 92% | 50,082 psi | 89% | 2539 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 90% | 50,821 psi | 90% | 2507 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 48,805 psi | 86% | 2484 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 51,155 psi | 90% | 2523 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 49,734 psi | 88% | 2566 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,998 psi | 64% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 49,501 psi | 88% | 2444 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 48,602 psi | 86% | 2425 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 48,167 psi | 85% | 2402 fps | 97.9% |
| IMR 4350 | <<locked>> | 94% | 50,154 psi | 89% | 2484 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 48,312 psi | 85% | 2431 fps | 97.8% |
| IMR 4831 | <<locked>> | 94% | 48,225 psi | 85% | 2487 fps | 99.7% |
| IMR 4895 | <<locked>> | 84% | 50,850 psi | 90% | 2503 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 50,807 psi | 90% | 2457 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 50,749 psi | 90% | 2418 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 48,631 psi | 86% | 2421 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 51,082 psi | 90% | 2477 fps | 99.3% |
| Lovex S070 | <<locked>> | 92% | 48,921 psi | 86% | 2464 fps | 98.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 37,333 psi | 66% | 2306 fps | 96.4% |
| Norma 201 | <<locked>> | 82% | 50,154 psi | 89% | 2431 fps | 100% |
| Norma 202 | <<locked>> | 82% | 50,575 psi | 89% | 2431 fps | 100% |
| Norma 203B | <<locked>> | 84% | 48,936 psi | 87% | 2467 fps | 100% |
| Norma 204 | <<locked>> | 94% | 50,227 psi | 89% | 2520 fps | 96.6% |
| Norma MRPᴾ | <<locked>> | 100% | 47,543 psi | 84% | 2582 fps | 97.9% |
| Norma URP | <<locked>> | 94% | 49,980 psi | 88% | 2530 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 48,907 psi | 86% | 2487 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 48,834 psi | 86% | 2530 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,535 psi | 65% | 1565 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 50,357 psi | 89% | 2470 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 49,705 psi | 88% | 2533 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 49,269 psi | 87% | 2569 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 50,517 psi | 89% | 2562 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 49,850 psi | 88% | 2585 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 84% | 50,821 psi | 90% | 2434 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 49,734 psi | 88% | 2470 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 50,111 psi | 89% | 2546 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 90% | 49,777 psi | 88% | 2454 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 92% | 51,082 psi | 90% | 2477 fps | 99.3% |
| Shooters World Match Rifle | <<locked>> | 82% | 50,807 psi | 90% | 2457 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 48,631 psi | 86% | 2421 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 48,921 psi | 86% | 2464 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 50,966 psi | 90% | 2523 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 49,530 psi | 88% | 2454 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 48,544 psi | 86% | 2339 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 50,705 psi | 90% | 2431 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 49,617 psi | 88% | 2543 fps | 97% |
| Somchem S335 | <<locked>> | 82% | 50,923 psi | 90% | 2375 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 49,995 psi | 88% | 2467 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 48,153 psi | 85% | 2533 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,937 psi | 90% | 2530 fps | 97.9% |
| Vihtavuori N135 | <<locked>> | 84% | 50,560 psi | 89% | 2398 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 51,184 psi | 90% | 2415 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 51,010 psi | 90% | 2448 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 49,211 psi | 87% | 2484 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 43,990 psi | 78% | 2405 fps | 95.9% |
| Vihtavuori N540 | <<locked>> | 84% | 49,313 psi | 87% | 2415 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 48,153 psi | 85% | 2487 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 47,282 psi | 84% | 2533 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 48,631 psi | 86% | 2457 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 50,401 psi | 89% | 2543 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 38,130 psi | 67% | 2493 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 49,400 psi | 87% | 2464 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 47,834 psi | 85% | 2470 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% | 45,092 psi | 80% | 2329 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 43,787 psi | 77% | 2320 fps | 96.1% |
| Accurate 3100 | <<locked>> | 92% | 34,316 psi | 61% | 2247 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 42,714 psi | 76% | 2336 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 31,560 psi | 56% | 2195 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 80% | 41,031 psi | 73% | 2306 fps | 99.1% |
| ADI AR 2209 | <<locked>> | 96% | 46,079 psi | 81% | 2470 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,077 psi | 78% | 2484 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,959 psi | 72% | 2329 fps | 99.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 43,801 psi | 77% | 2385 fps | 99.6% |
| Alliant Reloder-16 | 37.4 gr | 80% | 31,763 psi | 56% | 2205 fps | 96.4% |
| Alliant Reloder-17 | 40.3 gr | 80% | 35,418 psi | 63% | 2316 fps | 99.1% |
| Alliant Reloder-19 | <<locked>> | 96% | 45,397 psi | 80% | 2464 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 84% | 25,976 psi | 46% | 2080 fps | 95.2% |
| Alliant Reloder-25 | <<locked>> | 98% | 35,259 psi | 62% | 2326 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 88% | 31,444 psi | 56% | 2283 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 47,413 psi | 84% | 2444 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 40,698 psi | 72% | 2333 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 41,408 psi | 73% | 2313 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 41,278 psi | 73% | 2339 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 38,580 psi | 68% | 2339 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 84% | 41,771 psi | 74% | 2352 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,109 psi | 51% | 2113 fps | 97.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,744 psi | 79% | 2428 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 40,509 psi | 72% | 2402 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,701 psi | 47% | 1362 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 46,644 psi | 82% | 2402 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,105 psi | 76% | 2336 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,440 psi | 80% | 2359 fps | 97.3% |
| IMR 4350 | <<locked>> | 86% | 38,928 psi | 69% | 2290 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 37,811 psi | 67% | 2244 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 30,545 psi | 54% | 2156 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 44,875 psi | 79% | 2411 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 47,819 psi | 85% | 2415 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,601 psi | 84% | 2369 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 42,946 psi | 76% | 2333 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 35,549 psi | 63% | 2205 fps | 96.1% |
| Lovex S070 | <<locked>> | 84% | 38,159 psi | 67% | 2277 fps | 95.7% |
| Lovex S071 | <<locked>> | 98% | 35,027 psi | 62% | 2260 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 47,253 psi | 84% | 2388 fps | 100% |
| Norma 202 | <<locked>> | 80% | 47,659 psi | 84% | 2392 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,149 psi | 76% | 2375 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 43,918 psi | 78% | 2418 fps | 95% |
| Norma MRP | <<locked>> | 94% | 38,914 psi | 69% | 2418 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 31,894 psi | 56% | 2195 fps | 96.2% |
| Ramshot Big Game | <<locked>> | 80% | 42,830 psi | 76% | 2392 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 35,201 psi | 62% | 2277 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,253 psi | 48% | 1398 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,495 psi | 73% | 2323 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 46,412 psi | 82% | 2480 fps | 99.8% |
| ReloadSwiss RS 60 | 40.3 gr | 80% | 37,695 psi | 67% | 2372 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 31,154 psi | 55% | 2205 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 33,199 psi | 59% | 2260 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 80% | 44,860 psi | 79% | 2346 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 38,421 psi | 68% | 2287 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 96% | 44,019 psi | 78% | 2448 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 84% | 41,408 psi | 73% | 2313 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 35,549 psi | 63% | 2205 fps | 96.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 47,819 psi | 85% | 2415 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,946 psi | 76% | 2333 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 38,159 psi | 67% | 2277 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,146 psi | 69% | 2329 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 46,398 psi | 82% | 2408 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,466 psi | 72% | 2221 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 36,825 psi | 65% | 2198 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 43,613 psi | 77% | 2441 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 48,080 psi | 85% | 2336 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 39,102 psi | 69% | 2290 fps | 99.5% |
| Somchem S365 | <<locked>> | 80% | 28,572 psi | 51% | 2156 fps | 98.3% |
| Somchem S385 | <<locked>> | 92% | 39,247 psi | 69% | 2333 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 44,686 psi | 79% | 2320 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,150 psi | 80% | 2333 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,188 psi | 66% | 2231 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 33,170 psi | 59% | 2195 fps | 96.6% |
| Vihtavuori N165 | <<locked>> | 98% | 41,133 psi | 73% | 2356 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 43,323 psi | 77% | 2326 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 32,590 psi | 58% | 2195 fps | 96.2% |
| Vihtavuori N555 | <<locked>> | 84% | 27,920 psi | 49% | 2146 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,677 psi | 58% | 2172 fps | 98.5% |
| Winchester 760 | <<locked>> | 84% | 38,580 psi | 68% | 2339 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 88% | 25,962 psi | 46% | 2149 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,253 psi | 82% | 2418 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 44,628 psi | 79% | 2418 fps | 95.3% |
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 83 powders for 7 x 57 loaded with the .284 | 175gr | Sierra GameKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,621 fps; across all powders the maximum-charge window runs from 1,529 fps to 2,621 fps. Accurate 3100 gives the best case fill at 100 %, and 83 of the 83 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 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-25 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. Alliant Reloder-17, ReloadSwiss RS 60, Alliant Reloder-16 rank at the top here: for 7 x 57 with the .284 | 175gr | Sierra GameKing 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.