Load Specifications
Load data in caliber 7 x 57 with .284 | 158gr | Sellier & Bellot HPC bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 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 2015 | <<locked>> | 82% | 50,966 psi | 90% | 2500 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 49,313 psi | 87% | 2523 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 51,082 psi | 90% | 2582 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 48,776 psi | 86% | 2513 fps | 95.9% |
| Accurate 4064 | <<locked>> | 88% | 49,603 psi | 88% | 2569 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 48,559 psi | 86% | 2631 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 84% | 50,183 psi | 89% | 2592 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 90% | 51,155 psi | 90% | 2592 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 82% | 49,182 psi | 87% | 2546 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 49,850 psi | 88% | 2530 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 49,197 psi | 87% | 2690 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 50,807 psi | 90% | 2612 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 48,254 psi | 85% | 2582 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 98% | 50,241 psi | 89% | 2687 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 51,053 psi | 90% | 2720 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,305 psi | 68% | 2493 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,540 psi | 75% | 2641 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 49,458 psi | 87% | 2598 fps | 99.3% |
| Bofors RP3 | <<locked>> | 88% | 47,848 psi | 85% | 2575 fps | 99.9% |
| Bofors RP7 | <<locked>> | 92% | 48,573 psi | 86% | 2546 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 50,908 psi | 90% | 2530 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 48,211 psi | 85% | 2572 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 48,950 psi | 87% | 2585 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 94% | 48,182 psi | 85% | 2628 fps | 96.9% |
| Hodgdon H4895 | <<locked>> | 84% | 50,647 psi | 90% | 2602 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,908 psi | 88% | 2625 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 49,734 psi | 88% | 2631 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 48,414 psi | 86% | 2654 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,346 psi | 62% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 48,747 psi | 86% | 2556 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 50,270 psi | 89% | 2585 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 50,763 psi | 90% | 2579 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 86% | 50,517 psi | 89% | 2552 fps | 97.1% |
| IMR 4350 | <<locked>> | 96% | 48,704 psi | 86% | 2572 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 92% | 50,473 psi | 89% | 2579 fps | 97.1% |
| IMR 4831 | <<locked>> | 98% | 49,255 psi | 87% | 2628 fps | 99.2% |
| IMR 4895 | <<locked>> | 86% | 49,414 psi | 87% | 2608 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 49,182 psi | 87% | 2546 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 49,501 psi | 88% | 2569 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 49,980 psi | 88% | 2526 fps | 99.8% |
| Lovex S062 | <<locked>> | 88% | 50,604 psi | 89% | 2579 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 49,719 psi | 88% | 2575 fps | 98.2% |
| Lovex S070 | <<locked>> | 96% | 50,285 psi | 89% | 2605 fps | 97.4% |
| Norma 201 | <<locked>> | 84% | 49,037 psi | 87% | 2543 fps | 100% |
| Norma 202 | <<locked>> | 84% | 49,342 psi | 87% | 2543 fps | 100% |
| Norma 203B | <<locked>> | 88% | 50,705 psi | 90% | 2618 fps | 99.8% |
| Norma URP | <<locked>> | 98% | 51,155 psi | 90% | 2674 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 88% | 50,807 psi | 90% | 2641 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 98% | 50,256 psi | 89% | 2671 fps | 98.1% |
| Ramshot TAC | <<locked>> | 82% | 49,255 psi | 87% | 2559 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 82% | 48,733 psi | 86% | 2575 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,085 psi | 64% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 49,443 psi | 87% | 2572 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 48,196 psi | 85% | 2638 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 50,850 psi | 90% | 2723 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 48,240 psi | 85% | 2654 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 48,196 psi | 85% | 2674 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 82% | 50,285 psi | 89% | 2530 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 49,661 psi | 88% | 2543 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 51,039 psi | 90% | 2618 fps | 100% |
| Rottweil R 907 | <<locked>> | 92% | 48,573 psi | 86% | 2546 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 94% | 49,719 psi | 88% | 2575 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 49,501 psi | 88% | 2569 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 50,604 psi | 89% | 2579 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 50,285 psi | 89% | 2605 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 49,298 psi | 87% | 2625 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 50,937 psi | 90% | 2589 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 48,588 psi | 86% | 2566 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 50,560 psi | 89% | 2487 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 50,589 psi | 89% | 2490 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 49,574 psi | 88% | 2526 fps | 96.9% |
| Somchem S335 | <<locked>> | 84% | 49,995 psi | 88% | 2490 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 50,444 psi | 89% | 2579 fps | 99.8% |
| Somchem S355 | <<locked>> | 90% | 48,530 psi | 86% | 2569 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,965 psi | 87% | 2674 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 50,836 psi | 90% | 2477 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 49,124 psi | 87% | 2513 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 49,937 psi | 88% | 2530 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 49,588 psi | 88% | 2552 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 50,459 psi | 89% | 2625 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 82% | 49,647 psi | 88% | 2546 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 48,037 psi | 85% | 2523 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 49,530 psi | 88% | 2628 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,742 psi | 74% | 2566 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 50,734 psi | 90% | 2605 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 49,298 psi | 87% | 2592 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 48,530 psi | 86% | 2635 fps | 96.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,229 psi | 61% | 2490 fps | 98.4% |
| Winchester StaBALL Match | <<locked>> | 84% | 48,283 psi | 85% | 2572 fps | 99.9% |
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 2015 | <<locked>> | 80% | 47,979 psi | 85% | 2457 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,857 psi | 72% | 2392 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,761 psi | 84% | 2533 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,658 psi | 81% | 2461 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 38,609 psi | 68% | 2388 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,213 psi | 57% | 2320 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 44,295 psi | 78% | 2493 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 37,739 psi | 67% | 2356 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,325 psi | 82% | 2500 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 46,412 psi | 82% | 2480 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,219 psi | 71% | 2523 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,333 psi | 66% | 2375 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,987 psi | 71% | 2434 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,721 psi | 58% | 2329 fps | 95.1% |
| Alliant Reloder-17 | 39.9 gr | 80% | 31,995 psi | 57% | 2339 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,921 psi | 53% | 2290 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 36,898 psi | 65% | 2516 fps | 96% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,410 psi | 77% | 2497 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 36,811 psi | 65% | 2379 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 45,788 psi | 81% | 2500 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,037 psi | 85% | 2487 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,150 psi | 80% | 2523 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 37,637 psi | 67% | 2379 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 90% | 42,438 psi | 75% | 2526 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 44,672 psi | 79% | 2503 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,297 psi | 50% | 2192 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,596 psi | 72% | 2477 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 45,324 psi | 80% | 2598 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,339 psi | 47% | 1424 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,946 psi | 76% | 2461 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 44,295 psi | 78% | 2497 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,595 psi | 70% | 2385 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,119 psi | 74% | 2405 fps | 95.1% |
| IMR 4350 | <<locked>> | 94% | 45,629 psi | 81% | 2523 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,614 psi | 79% | 2480 fps | 95.7% |
| IMR 4831 | <<locked>> | 86% | 33,504 psi | 59% | 2333 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 40,973 psi | 72% | 2461 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 46,325 psi | 82% | 2500 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 43,163 psi | 76% | 2470 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,179 psi | 78% | 2431 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 39,320 psi | 70% | 2385 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 38,812 psi | 69% | 2379 fps | 95.7% |
| Lovex S070 | <<locked>> | 90% | 41,858 psi | 74% | 2457 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 43,468 psi | 77% | 2451 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 43,729 psi | 77% | 2457 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,378 psi | 70% | 2421 fps | 98.5% |
| Norma URP | <<locked>> | 84% | 32,808 psi | 58% | 2323 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 38,856 psi | 69% | 2434 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 38,682 psi | 68% | 2457 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 46,253 psi | 82% | 2507 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,643 psi | 81% | 2526 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,818 psi | 47% | 1463 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,625 psi | 72% | 2415 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,829 psi | 74% | 2526 fps | 98.5% |
| ReloadSwiss RS 60 | 39.9 gr | 80% | 34,040 psi | 60% | 2402 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,229 psi | 61% | 2385 fps | 95.4% |
| ReloadSwiss RS 70 | 44.6 gr | 88% | 36,825 psi | 65% | 2444 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 47,398 psi | 84% | 2484 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,234 psi | 73% | 2402 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 34,708 psi | 61% | 2326 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 45,788 psi | 81% | 2500 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,812 psi | 69% | 2379 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,163 psi | 76% | 2470 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,320 psi | 70% | 2385 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 41,858 psi | 74% | 2457 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,505 psi | 63% | 2369 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,541 psi | 79% | 2484 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,612 psi | 75% | 2461 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,701 psi | 79% | 2402 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,173 psi | 66% | 2280 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,497 psi | 77% | 2428 fps | 95.5% |
| Somchem S335 | <<locked>> | 80% | 44,454 psi | 79% | 2408 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,208 psi | 78% | 2480 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 35,621 psi | 63% | 2333 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 25,802 psi | 46% | 2175 fps | 95.5% |
| Vihtavuori N133 | <<locked>> | 80% | 45,034 psi | 80% | 2395 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,683 psi | 72% | 2385 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,394 psi | 73% | 2395 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,823 psi | 60% | 2274 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 34,214 psi | 60% | 2326 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 46,398 psi | 82% | 2497 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,711 psi | 70% | 2385 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,692 psi | 60% | 2329 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 92% | 32,053 psi | 57% | 2362 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,979 psi | 53% | 2205 fps | 96.1% |
| Winchester 748 | <<locked>> | 80% | 46,064 psi | 81% | 2539 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 42,438 psi | 75% | 2526 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,124 psi | 53% | 2369 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,264 psi | 75% | 2470 fps | 99.3% |
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 89 powders for 7 x 57 loaded with the .284 | 158gr | Sellier & Bellot HPC. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,723 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,723 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 61–90 %, leaving at least 10 % headroom. The 158.0 gr projectile in 0.284" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, Hodgdon Hybrid 100V 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 7 x 57 with the .284 | 158gr | Sellier & Bellot HPC 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.