Load Specifications
Load data in caliber 7 x 57 with .284 | 171gr | Barnes Match Burner BT bullet and 86 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-16, ReloadSwiss RS 70 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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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% | 49,066 psi | 87% | 2411 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 48,037 psi | 85% | 2408 fps | 96.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,569 psi | 75% | 2421 fps | 97.4% |
| Accurate 4064 | <<locked>> | 86% | 49,574 psi | 88% | 2461 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 48,530 psi | 86% | 2530 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 82% | 49,690 psi | 88% | 2480 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 50,691 psi | 90% | 2484 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 50,546 psi | 89% | 2559 fps | 96.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 48,747 psi | 86% | 2582 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 50,604 psi | 89% | 2503 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 50,908 psi | 90% | 2520 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 50,198 psi | 89% | 2585 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 50,850 psi | 90% | 2612 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 49,284 psi | 87% | 2546 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,640 psi | 72% | 2448 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,556 psi | 81% | 2605 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 48,936 psi | 87% | 2490 fps | 99.6% |
| Bofors RP3 | <<locked>> | 88% | 50,778 psi | 90% | 2513 fps | 100% |
| Bofors RP7 | <<locked>> | 90% | 47,906 psi | 85% | 2444 fps | 96.9% |
| Hodgdon BL-C2 | <<locked>> | 82% | 50,995 psi | 90% | 2507 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 48,443 psi | 86% | 2477 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 92% | 48,095 psi | 85% | 2526 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 90% | 48,921 psi | 86% | 2493 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 82% | 50,198 psi | 89% | 2490 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 49,792 psi | 88% | 2520 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 49,356 psi | 87% | 2520 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 47,950 psi | 85% | 2552 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 63% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 47,892 psi | 85% | 2441 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 50,256 psi | 89% | 2474 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 49,937 psi | 88% | 2464 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,879 psi | 88% | 2448 fps | 97.8% |
| IMR 4350 | <<locked>> | 94% | 48,341 psi | 85% | 2474 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 49,719 psi | 88% | 2470 fps | 97.7% |
| IMR 4831 | <<locked>> | 96% | 49,487 psi | 87% | 2530 fps | 99.7% |
| IMR 4895 | <<locked>> | 84% | 49,124 psi | 87% | 2500 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 48,965 psi | 87% | 2454 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 49,240 psi | 87% | 2415 fps | 99.9% |
| Lovex S062 | <<locked>> | 86% | 49,879 psi | 88% | 2464 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 49,197 psi | 87% | 2470 fps | 98.8% |
| Lovex S070 | <<locked>> | 94% | 49,908 psi | 88% | 2500 fps | 98.1% |
| Norma 201 | <<locked>> | 82% | 48,486 psi | 86% | 2431 fps | 100% |
| Norma 202 | <<locked>> | 82% | 48,878 psi | 86% | 2431 fps | 100% |
| Norma 203B | <<locked>> | 86% | 50,140 psi | 89% | 2507 fps | 100% |
| Norma MRPᴾ | <<locked>> | 100% | 45,440 psi | 80% | 2562 fps | 96.9% |
| Norma URP | <<locked>> | 94% | 47,950 psi | 85% | 2520 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 86% | 50,517 psi | 89% | 2533 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 49,821 psi | 88% | 2566 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,303 psi | 64% | 1575 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 48,834 psi | 86% | 2464 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 47,790 psi | 84% | 2526 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 50,589 psi | 89% | 2612 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 48,080 psi | 85% | 2549 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 51,053 psi | 90% | 2625 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 84% | 49,182 psi | 87% | 2434 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 50,995 psi | 90% | 2513 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 48,182 psi | 85% | 2533 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 90% | 47,906 psi | 85% | 2444 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 92% | 49,197 psi | 87% | 2470 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 82% | 48,965 psi | 87% | 2454 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 49,879 psi | 88% | 2464 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 49,908 psi | 88% | 2500 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 48,965 psi | 87% | 2516 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 50,285 psi | 89% | 2477 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 51,140 psi | 90% | 2500 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 49,995 psi | 88% | 2379 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 49,966 psi | 88% | 2379 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 49,269 psi | 87% | 2428 fps | 97.7% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 47,732 psi | 84% | 2530 fps | 96% |
| Somchem S335 | <<locked>> | 82% | 49,327 psi | 87% | 2375 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 49,864 psi | 88% | 2470 fps | 99.9% |
| Somchem S355 | <<locked>> | 88% | 48,283 psi | 85% | 2464 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 49,081 psi | 87% | 2569 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,008 psi | 87% | 2520 fps | 97.2% |
| Vihtavuori N133 | <<locked>> | 82% | 50,357 psi | 89% | 2365 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 48,718 psi | 86% | 2398 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 49,487 psi | 87% | 2418 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 49,371 psi | 87% | 2448 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 50,198 psi | 89% | 2520 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 86% | 50,647 psi | 90% | 2454 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 49,414 psi | 87% | 2526 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,773 psi | 79% | 2516 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 50,125 psi | 89% | 2500 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 48,095 psi | 85% | 2526 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,463 psi | 64% | 2470 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 50,705 psi | 90% | 2503 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% | 43,279 psi | 77% | 2329 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 42,090 psi | 74% | 2306 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 34,824 psi | 62% | 2274 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 40,930 psi | 72% | 2329 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 30,095 psi | 53% | 2178 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 46,514 psi | 82% | 2431 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 39,595 psi | 70% | 2300 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 98% | 47,210 psi | 83% | 2503 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,540 psi | 75% | 2474 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,392 psi | 70% | 2320 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,177 psi | 75% | 2379 fps | 99.2% |
| Alliant Reloder-16 | 36.7 gr | 80% | 30,560 psi | 54% | 2188 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,098 psi | 60% | 2306 fps | 98.5% |
| Alliant Reloder-19 | <<locked>> | 98% | 46,441 psi | 82% | 2500 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 86% | 26,658 psi | 47% | 2116 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 90% | 32,169 psi | 57% | 2316 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,832 psi | 81% | 2441 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 39,073 psi | 69% | 2326 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 42,511 psi | 75% | 2349 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,718 psi | 84% | 2461 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 39,769 psi | 70% | 2329 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 39,479 psi | 70% | 2375 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 43,149 psi | 76% | 2395 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 46,934 psi | 83% | 2441 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 28,137 psi | 50% | 2103 fps | 96.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,091 psi | 76% | 2421 fps | 99.9% |
| Hodgdon Superformance | 46 gr | 88% | 41,698 psi | 74% | 2441 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,643 psi | 47% | 1371 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,078 psi | 80% | 2398 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 46,818 psi | 83% | 2425 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,597 psi | 74% | 2329 fps | 99.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,048 psi | 78% | 2349 fps | 96.6% |
| IMR 4350 | <<locked>> | 90% | 42,627 psi | 75% | 2375 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 82% | 39,044 psi | 69% | 2283 fps | 95% |
| IMR 4831 | <<locked>> | 82% | 31,328 psi | 55% | 2192 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 43,207 psi | 76% | 2405 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 46,064 psi | 81% | 2415 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,412 psi | 82% | 2372 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 41,626 psi | 74% | 2333 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 34,214 psi | 60% | 2195 fps | 95.1% |
| Lovex S070 | <<locked>> | 86% | 39,073 psi | 69% | 2313 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 45,643 psi | 81% | 2385 fps | 100% |
| Norma 202 | <<locked>> | 80% | 46,006 psi | 81% | 2388 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,582 psi | 74% | 2369 fps | 99.4% |
| Norma MRP | <<locked>> | 96% | 39,682 psi | 70% | 2451 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 30,574 psi | 54% | 2182 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 41,234 psi | 73% | 2385 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 36,260 psi | 64% | 2316 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,180 psi | 48% | 1407 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,103 psi | 71% | 2313 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,585 psi | 79% | 2474 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,260 psi | 64% | 2362 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 31,952 psi | 56% | 2244 fps | 95.5% |
| ReloadSwiss RS 70 | 42.2 gr | 84% | 34,243 psi | 61% | 2300 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 43,569 psi | 77% | 2346 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 36,840 psi | 65% | 2277 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 98% | 44,947 psi | 79% | 2480 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 86% | 42,511 psi | 75% | 2349 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 34,214 psi | 60% | 2195 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,064 psi | 81% | 2415 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,626 psi | 74% | 2333 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 86% | 39,073 psi | 69% | 2313 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,608 psi | 66% | 2320 fps | 98.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,021 psi | 83% | 2428 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,860 psi | 79% | 2405 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,007 psi | 83% | 2336 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,262 psi | 69% | 2221 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 40,437 psi | 71% | 2280 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 44,541 psi | 79% | 2474 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 46,485 psi | 82% | 2336 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,688 psi | 83% | 2421 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 37,637 psi | 67% | 2280 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 27,398 psi | 48% | 2139 fps | 97.5% |
| Somchem S385 | <<locked>> | 96% | 42,728 psi | 76% | 2415 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 47,398 psi | 84% | 2326 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,221 psi | 76% | 2323 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,540 psi | 77% | 2329 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,737 psi | 63% | 2224 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 31,850 psi | 56% | 2182 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 41,829 psi | 74% | 2323 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 31,314 psi | 55% | 2185 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 86% | 28,398 psi | 50% | 2178 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,618 psi | 56% | 2165 fps | 97.7% |
| Winchester 760 | <<locked>> | 86% | 39,479 psi | 70% | 2375 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 26,513 psi | 47% | 2178 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,686 psi | 79% | 2411 fps | 99.9% |
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 | 171gr | Barnes Match Burner BT. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,625 fps; across all powders the maximum-charge window runs from 1,535 fps to 2,625 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 63–90 %, leaving at least 10 % headroom. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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-16, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for 7 x 57 with the .284 | 171gr | Barnes Match Burner BT 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.