Load Specifications
Load data in caliber 7 x 57 with .284 | 158gr | Sellier & Bellot XRG bullet and 87 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 2495 | <<locked>> | 86% | 49,821 psi | 88% | 2530 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 49,124 psi | 87% | 2520 fps | 96% |
| Accurate 3100ᴾ | <<locked>> | 100% | 40,321 psi | 71% | 2477 fps | 95.9% |
| Accurate 4064 | <<locked>> | 88% | 50,125 psi | 89% | 2579 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 49,008 psi | 87% | 2641 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 84% | 50,676 psi | 90% | 2602 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 88% | 48,675 psi | 86% | 2556 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 49,632 psi | 88% | 2552 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 50,125 psi | 89% | 2533 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 49,574 psi | 88% | 2700 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 48,327 psi | 85% | 2575 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 48,718 psi | 86% | 2589 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 98% | 50,923 psi | 90% | 2700 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 92% | 48,385 psi | 86% | 2684 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,580 psi | 68% | 2503 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,076 psi | 76% | 2654 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 49,879 psi | 88% | 2608 fps | 99.3% |
| Bofors RP3 | <<locked>> | 88% | 48,617 psi | 86% | 2589 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 48,979 psi | 87% | 2556 fps | 96.3% |
| Hodgdon BL-C2 | <<locked>> | 82% | 48,704 psi | 86% | 2582 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 49,371 psi | 87% | 2595 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 94% | 48,950 psi | 87% | 2641 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 84% | 51,155 psi | 90% | 2612 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,328 psi | 89% | 2635 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 50,169 psi | 89% | 2641 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 49,008 psi | 87% | 2667 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,520 psi | 63% | 1604 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 48,863 psi | 86% | 2562 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 50,894 psi | 90% | 2595 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 47,950 psi | 85% | 2536 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 50,908 psi | 90% | 2562 fps | 97.3% |
| IMR 4350 | <<locked>> | 96% | 49,081 psi | 87% | 2582 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 50,807 psi | 90% | 2589 fps | 97.2% |
| IMR 4831 | <<locked>> | 98% | 49,966 psi | 88% | 2641 fps | 99.4% |
| IMR 4895 | <<locked>> | 86% | 49,893 psi | 88% | 2618 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 82% | 49,632 psi | 88% | 2552 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 49,995 psi | 88% | 2579 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 50,444 psi | 89% | 2536 fps | 99.8% |
| Lovex S062 | <<locked>> | 88% | 51,082 psi | 90% | 2585 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 50,125 psi | 89% | 2585 fps | 98.3% |
| Lovex S070 | <<locked>> | 96% | 50,647 psi | 90% | 2612 fps | 97.5% |
| Norma 201 | <<locked>> | 84% | 49,501 psi | 88% | 2552 fps | 100% |
| Norma 202 | <<locked>> | 84% | 49,850 psi | 88% | 2552 fps | 100% |
| Norma 203B | <<locked>> | 86% | 47,950 psi | 85% | 2579 fps | 99.7% |
| Norma URP | <<locked>> | 96% | 48,530 psi | 86% | 2635 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 86% | 47,950 psi | 85% | 2598 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 98% | 50,575 psi | 89% | 2677 fps | 98.2% |
| Ramshot TAC | <<locked>> | 82% | 49,690 psi | 88% | 2569 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 49,168 psi | 87% | 2585 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,955 psi | 64% | 1640 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 49,777 psi | 88% | 2579 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 48,704 psi | 86% | 2648 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 48,254 psi | 85% | 2684 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 48,979 psi | 87% | 2667 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 48,820 psi | 86% | 2687 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 82% | 50,517 psi | 89% | 2536 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 50,183 psi | 89% | 2552 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 48,515 psi | 86% | 2582 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 92% | 48,979 psi | 87% | 2556 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 94% | 50,125 psi | 89% | 2585 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 49,995 psi | 88% | 2579 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 51,082 psi | 90% | 2585 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 50,647 psi | 90% | 2612 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 49,980 psi | 88% | 2638 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 48,051 psi | 85% | 2546 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 49,023 psi | 87% | 2572 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 51,068 psi | 90% | 2497 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 51,053 psi | 90% | 2497 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 50,227 psi | 89% | 2536 fps | 97.1% |
| Somchem S335 | <<locked>> | 84% | 50,430 psi | 89% | 2497 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 50,836 psi | 90% | 2589 fps | 99.8% |
| Somchem S355 | <<locked>> | 90% | 48,965 psi | 87% | 2579 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,661 psi | 88% | 2687 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 48,385 psi | 86% | 2444 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 49,690 psi | 88% | 2523 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 50,415 psi | 89% | 2536 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 49,966 psi | 88% | 2559 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 50,894 psi | 90% | 2631 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 82% | 49,763 psi | 88% | 2552 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 48,486 psi | 86% | 2530 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 49,908 psi | 88% | 2635 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,148 psi | 75% | 2575 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 47,819 psi | 85% | 2566 fps | 99.9% |
| Winchester 748 | <<locked>> | 82% | 49,806 psi | 88% | 2598 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 48,950 psi | 87% | 2641 fps | 97.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,490 psi | 61% | 2500 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 48,704 psi | 86% | 2579 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 2495 | <<locked>> | 80% | 41,118 psi | 73% | 2398 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,035 psi | 81% | 2467 fps | 95.3% |
| Accurate 3100 | <<locked>> | 98% | 37,536 psi | 66% | 2421 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 38,870 psi | 69% | 2395 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 32,634 psi | 58% | 2329 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 44,759 psi | 79% | 2503 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 37,913 psi | 67% | 2359 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,818 psi | 83% | 2510 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,007 psi | 83% | 2490 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,625 psi | 72% | 2533 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,507 psi | 66% | 2382 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,466 psi | 72% | 2444 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,054 psi | 58% | 2339 fps | 95.3% |
| Alliant Reloder-17 | 40.3 gr | 80% | 32,300 psi | 57% | 2352 fps | 97% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,385 psi | 54% | 2303 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 34,998 psi | 62% | 2474 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,816 psi | 77% | 2507 fps | 98.5% |
| Bofors RP3 | <<locked>> | 80% | 37,289 psi | 66% | 2388 fps | 98.9% |
| Bofors RP7 | <<locked>> | 90% | 46,151 psi | 82% | 2510 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,614 psi | 81% | 2530 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,043 psi | 67% | 2392 fps | 96.5% |
| Hodgdon H414 | <<locked>> | 90% | 42,844 psi | 76% | 2536 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 45,150 psi | 80% | 2513 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,427 psi | 50% | 2195 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,075 psi | 73% | 2487 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 92% | 45,571 psi | 81% | 2605 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 47% | 1434 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,105 psi | 76% | 2464 fps | 99.4% |
| IMR 3031 | <<locked>> | 80% | 44,860 psi | 79% | 2507 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,798 psi | 70% | 2392 fps | 98.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,221 psi | 75% | 2411 fps | 95.2% |
| IMR 4350 | <<locked>> | 94% | 45,992 psi | 81% | 2530 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,206 psi | 75% | 2438 fps | 95.1% |
| IMR 4831 | <<locked>> | 86% | 33,910 psi | 60% | 2343 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 41,437 psi | 73% | 2474 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 80% | 46,818 psi | 83% | 2510 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 43,685 psi | 77% | 2480 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,643 psi | 79% | 2441 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 39,769 psi | 70% | 2398 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 36,956 psi | 65% | 2343 fps | 95.1% |
| Lovex S070 | <<locked>> | 90% | 42,221 psi | 75% | 2467 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 43,700 psi | 77% | 2454 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 43,947 psi | 78% | 2461 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,827 psi | 70% | 2434 fps | 98.6% |
| Norma URP | <<locked>> | 84% | 32,953 psi | 58% | 2329 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 39,276 psi | 69% | 2444 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 39,276 psi | 69% | 2470 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 46,644 psi | 82% | 2516 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,093 psi | 81% | 2533 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,789 psi | 47% | 1467 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,017 psi | 73% | 2425 fps | 95.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,395 psi | 75% | 2536 fps | 98.7% |
| ReloadSwiss RS 60 | 40.3 gr | 80% | 34,389 psi | 61% | 2415 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 34,606 psi | 61% | 2395 fps | 95.6% |
| ReloadSwiss RS 70 | 45.1 gr | 88% | 37,318 psi | 66% | 2461 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 47,674 psi | 84% | 2490 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,713 psi | 74% | 2415 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 34,940 psi | 62% | 2333 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 90% | 46,151 psi | 82% | 2510 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 84% | 36,956 psi | 65% | 2343 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,685 psi | 77% | 2480 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,769 psi | 70% | 2398 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 42,221 psi | 75% | 2467 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,882 psi | 63% | 2382 fps | 97.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,976 psi | 80% | 2493 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,076 psi | 76% | 2474 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,208 psi | 80% | 2411 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,623 psi | 67% | 2290 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 41,307 psi | 73% | 2388 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 44,657 psi | 79% | 2411 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,643 psi | 79% | 2490 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 35,839 psi | 63% | 2339 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 25,962 psi | 46% | 2182 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 45,542 psi | 81% | 2405 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,220 psi | 73% | 2395 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,568 psi | 73% | 2402 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,997 psi | 60% | 2280 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 84% | 34,577 psi | 61% | 2336 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 46,862 psi | 83% | 2507 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 40,176 psi | 71% | 2395 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 34,069 psi | 60% | 2336 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 90% | 30,472 psi | 54% | 2323 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,255 psi | 53% | 2211 fps | 96.3% |
| Winchester 748 | <<locked>> | 80% | 46,586 psi | 82% | 2549 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 42,844 psi | 76% | 2536 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 94% | 28,645 psi | 51% | 2323 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,424 psi | 75% | 2474 fps | 99.4% |
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 87 powders for 7 x 57 loaded with the .284 | 158gr | Sellier & Bellot XRG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,700 fps. Accurate 3100 gives the best case fill at 100 %, and 87 of the 87 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 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 XRG 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.