Load Specifications
Load data in caliber 7 x 57 with .284 | 150gr | Barnes X S bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 50,169 psi | 89% | 2579 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 50,981 psi | 90% | 2595 fps | 95.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,525 psi | 75% | 2556 fps | 95.8% |
| Accurate 4064 | <<locked>> | 86% | 49,850 psi | 88% | 2618 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 48,124 psi | 85% | 2674 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 82% | 49,211 psi | 87% | 2625 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 88% | 50,009 psi | 88% | 2628 fps | 99.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 51,140 psi | 90% | 2779 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 50,009 psi | 88% | 2651 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 50,691 psi | 90% | 2671 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 96% | 49,226 psi | 87% | 2723 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 92% | 49,719 psi | 88% | 2756 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,582 psi | 72% | 2585 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,063 psi | 80% | 2733 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 48,167 psi | 85% | 2631 fps | 98.8% |
| Bofors RP3 | <<locked>> | 88% | 50,792 psi | 90% | 2671 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 50,647 psi | 90% | 2628 fps | 96% |
| Hodgdon BL-C2 | <<locked>> | 82% | 50,459 psi | 89% | 2657 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 48,341 psi | 85% | 2625 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 94% | 50,299 psi | 89% | 2713 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 82% | 49,676 psi | 88% | 2638 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 48,747 psi | 86% | 2661 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 48,486 psi | 86% | 2664 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 94% | 50,560 psi | 89% | 2736 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,882 psi | 63% | 1647 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 50,575 psi | 89% | 2638 fps | 99.8% |
| IMR 3031 | <<locked>> | 82% | 49,559 psi | 88% | 2628 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 49,501 psi | 88% | 2608 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,472 psi | 87% | 2582 fps | 96.4% |
| IMR 4350 | <<locked>> | 96% | 50,314 psi | 89% | 2648 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 90% | 49,284 psi | 87% | 2612 fps | 96.2% |
| IMR 4831 | <<locked>> | 96% | 48,660 psi | 86% | 2671 fps | 98.8% |
| IMR 4895 | <<locked>> | 84% | 48,820 psi | 86% | 2651 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 82% | 48,950 psi | 87% | 2612 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 48,747 psi | 86% | 2556 fps | 99.5% |
| Lovex S062 | <<locked>> | 86% | 49,821 psi | 88% | 2615 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 49,124 psi | 87% | 2612 fps | 97.7% |
| Lovex S070 | <<locked>> | 94% | 49,588 psi | 88% | 2641 fps | 96.7% |
| Norma 201 | <<locked>> | 82% | 48,878 psi | 86% | 2589 fps | 99.9% |
| Norma 202 | <<locked>> | 82% | 48,791 psi | 86% | 2589 fps | 100% |
| Norma 203B | <<locked>> | 86% | 50,024 psi | 88% | 2661 fps | 99.6% |
| Norma URP | <<locked>> | 96% | 50,285 psi | 89% | 2710 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 86% | 49,617 psi | 88% | 2674 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 96% | 48,994 psi | 87% | 2700 fps | 97.3% |
| Ramshot TAC | <<locked>> | 82% | 51,068 psi | 90% | 2638 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 50,647 psi | 90% | 2657 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,434 psi | 64% | 1686 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 48,341 psi | 85% | 2602 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 50,285 psi | 89% | 2723 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 49,559 psi | 88% | 2759 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 50,401 psi | 89% | 2740 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 50,053 psi | 88% | 2756 fps | 98.4% |
| Rottweil R 902 | <<locked>> | 84% | 49,182 psi | 87% | 2582 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 90% | 50,604 psi | 89% | 2661 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 92% | 50,647 psi | 90% | 2628 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 92% | 49,124 psi | 87% | 2612 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 48,950 psi | 87% | 2612 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 49,821 psi | 88% | 2615 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 49,588 psi | 88% | 2641 fps | 96.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 48,283 psi | 85% | 2661 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 49,908 psi | 88% | 2621 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 50,517 psi | 89% | 2644 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 49,763 psi | 88% | 2530 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 49,530 psi | 88% | 2530 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 49,066 psi | 87% | 2566 fps | 96.3% |
| Somchem S335 | <<locked>> | 82% | 49,516 psi | 88% | 2533 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 49,124 psi | 87% | 2612 fps | 99.5% |
| Somchem S355 | <<locked>> | 90% | 50,821 psi | 90% | 2657 fps | 99.8% |
| Somchem S365 | <<locked>> | 98% | 48,225 psi | 85% | 2717 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 49,893 psi | 88% | 2520 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 48,718 psi | 86% | 2559 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 48,863 psi | 86% | 2566 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 48,791 psi | 86% | 2592 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 49,313 psi | 87% | 2657 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 86% | 50,430 psi | 89% | 2612 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 48,646 psi | 86% | 2664 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,324 psi | 78% | 2661 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 49,327 psi | 87% | 2638 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 50,560 psi | 89% | 2720 fps | 96.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,564 psi | 65% | 2589 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 84% | 50,227 psi | 89% | 2654 fps | 99.8% |
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% | 44,483 psi | 79% | 2493 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 47,979 psi | 85% | 2546 fps | 95.1% |
| Accurate 3100 | <<locked>> | 98% | 40,103 psi | 71% | 2510 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,018 psi | 74% | 2490 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 35,099 psi | 62% | 2421 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 46,296 psi | 82% | 2575 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 39,552 psi | 70% | 2434 fps | 97.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,134 psi | 74% | 2608 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,494 psi | 70% | 2464 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,148 psi | 75% | 2520 fps | 98.2% |
| Alliant Reloder-16 | 39.6 gr | 84% | 34,809 psi | 62% | 2418 fps | 95.3% |
| Alliant Reloder-17 | 40.6 gr | 80% | 34,214 psi | 60% | 2434 fps | 97% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,545 psi | 54% | 2336 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 94% | 36,956 psi | 65% | 2556 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,353 psi | 80% | 2582 fps | 98.3% |
| Bofors RP3 | <<locked>> | 80% | 39,697 psi | 70% | 2477 fps | 98.9% |
| Bofors RP7 | <<locked>> | 90% | 47,906 psi | 85% | 2582 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,471 psi | 84% | 2608 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,190 psi | 71% | 2470 fps | 96.5% |
| Hodgdon H414 | <<locked>> | 90% | 44,353 psi | 78% | 2608 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 46,673 psi | 83% | 2589 fps | 99.5% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 30,501 psi | 54% | 2280 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,743 psi | 76% | 2566 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 47,195 psi | 83% | 2677 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,079 psi | 48% | 1473 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,686 psi | 79% | 2539 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 46,398 psi | 82% | 2582 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,553 psi | 73% | 2467 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 82% | 46,557 psi | 82% | 2533 fps | 95.7% |
| IMR 4350 | <<locked>> | 94% | 47,572 psi | 84% | 2602 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,369 psi | 82% | 2559 fps | 95.5% |
| IMR 4831 | <<locked>> | 84% | 33,794 psi | 60% | 2375 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 43,134 psi | 76% | 2549 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 45,948 psi | 81% | 2562 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,166 psi | 82% | 2513 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 41,959 psi | 74% | 2480 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 39,102 psi | 69% | 2425 fps | 95.1% |
| Lovex S070 | <<locked>> | 90% | 44,237 psi | 78% | 2546 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 45,948 psi | 81% | 2536 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 45,876 psi | 81% | 2539 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,553 psi | 73% | 2507 fps | 98.5% |
| Norma URP | <<locked>> | 84% | 34,940 psi | 62% | 2411 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 40,973 psi | 72% | 2523 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 40,857 psi | 72% | 2546 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 48,167 psi | 85% | 2589 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,645 psi | 84% | 2608 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,369 psi | 48% | 1509 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,844 psi | 76% | 2500 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,106 psi | 78% | 2618 fps | 98.6% |
| ReloadSwiss RS 60 | 40.6 gr | 80% | 36,216 psi | 64% | 2493 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 36,608 psi | 65% | 2480 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 38,972 psi | 69% | 2533 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 44,005 psi | 78% | 2497 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 37,391 psi | 66% | 2421 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 90% | 47,906 psi | 85% | 2582 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,102 psi | 69% | 2425 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,948 psi | 81% | 2562 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,959 psi | 74% | 2480 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 44,237 psi | 78% | 2546 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,695 psi | 67% | 2461 fps | 97.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,905 psi | 83% | 2569 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,730 psi | 79% | 2549 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,659 psi | 82% | 2480 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,102 psi | 69% | 2359 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,021 psi | 81% | 2513 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 46,615 psi | 82% | 2487 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,224 psi | 82% | 2562 fps | 99.1% |
| Somchem S355 | <<locked>> | 80% | 38,087 psi | 67% | 2425 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 28,181 psi | 50% | 2274 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 80% | 46,833 psi | 83% | 2474 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,062 psi | 76% | 2470 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,381 psi | 77% | 2477 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,071 psi | 64% | 2362 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 84% | 36,448 psi | 64% | 2415 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 42,018 psi | 74% | 2474 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 36,013 psi | 64% | 2418 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 90% | 32,779 psi | 58% | 2411 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,053 psi | 57% | 2290 fps | 96.3% |
| Winchester 760 | <<locked>> | 90% | 44,643 psi | 79% | 2615 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,734 psi | 54% | 2415 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,396 psi | 78% | 2556 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 81 powders for 7 x 57 loaded with the .284 | 150gr | Barnes X S. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,779 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,779 fps. Accurate 3100 gives the best case fill at 100 %, and 81 of the 81 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. The 150.0 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 60, Alliant Reloder-17, Alliant Reloder-16 rank at the top here: for 7 x 57 with the .284 | 150gr | Barnes X S 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.