Load Specifications
Load data in caliber 7 x 57 with .284 | 150gr | Barnes X BT bullet and 80 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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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% | 50,386 psi | 89% | 2582 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 50,836 psi | 90% | 2592 fps | 95.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,685 psi | 75% | 2559 fps | 95.9% |
| Accurate 4064 | <<locked>> | 86% | 50,053 psi | 88% | 2621 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 48,312 psi | 85% | 2680 fps | 98.7% |
| ADI AR 2206H | <<locked>> | 82% | 49,371 psi | 87% | 2631 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 88% | 49,879 psi | 88% | 2625 fps | 99.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 50,995 psi | 90% | 2776 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 50,198 psi | 89% | 2654 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 86% | 50,560 psi | 89% | 2671 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 96% | 49,429 psi | 87% | 2726 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 92% | 49,879 psi | 88% | 2759 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,669 psi | 72% | 2589 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,860 psi | 79% | 2733 fps | 97.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 48,327 psi | 85% | 2635 fps | 98.8% |
| Bofors RP3 | <<locked>> | 88% | 50,937 psi | 90% | 2674 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 50,821 psi | 90% | 2635 fps | 96.1% |
| Hodgdon BL-C2 | <<locked>> | 82% | 50,647 psi | 90% | 2661 fps | 100% |
| Hodgdon H380 | <<locked>> | 86% | 48,283 psi | 85% | 2625 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 94% | 50,444 psi | 89% | 2717 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 82% | 49,835 psi | 88% | 2641 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 48,907 psi | 86% | 2661 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 48,631 psi | 86% | 2667 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 94% | 50,734 psi | 90% | 2743 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,824 psi | 63% | 1647 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 50,444 psi | 89% | 2638 fps | 99.8% |
| IMR 3031 | <<locked>> | 82% | 49,487 psi | 87% | 2628 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 49,647 psi | 88% | 2612 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,356 psi | 87% | 2582 fps | 96.4% |
| IMR 4350 | <<locked>> | 96% | 50,459 psi | 89% | 2651 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 90% | 49,153 psi | 87% | 2608 fps | 96.2% |
| IMR 4831 | <<locked>> | 96% | 48,863 psi | 86% | 2671 fps | 98.9% |
| IMR 4895 | <<locked>> | 84% | 48,689 psi | 86% | 2648 fps | 99.5% |
| Lovex D073.6 | <<locked>> | 82% | 49,124 psi | 87% | 2615 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 48,979 psi | 87% | 2562 fps | 99.5% |
| Lovex S062 | <<locked>> | 86% | 49,966 psi | 88% | 2618 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 49,255 psi | 87% | 2615 fps | 97.7% |
| Lovex S070 | <<locked>> | 94% | 49,748 psi | 88% | 2644 fps | 96.8% |
| Norma 201 | <<locked>> | 82% | 48,733 psi | 86% | 2585 fps | 99.9% |
| Norma 202 | <<locked>> | 82% | 48,704 psi | 86% | 2585 fps | 100% |
| Norma 203B | <<locked>> | 86% | 49,893 psi | 88% | 2661 fps | 99.6% |
| Norma URP | <<locked>> | 96% | 50,444 psi | 89% | 2713 fps | 99% |
| Ramshot Big Game | <<locked>> | 86% | 49,574 psi | 88% | 2674 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 96% | 49,182 psi | 87% | 2703 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 50,836 psi | 90% | 2661 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,651 psi | 65% | 1693 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 48,457 psi | 86% | 2605 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 50,502 psi | 89% | 2726 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 49,719 psi | 88% | 2762 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 50,618 psi | 89% | 2746 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 50,183 psi | 89% | 2759 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 84% | 49,356 psi | 87% | 2589 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 90% | 50,763 psi | 90% | 2664 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 92% | 50,821 psi | 90% | 2635 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 92% | 49,255 psi | 87% | 2615 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 49,124 psi | 87% | 2615 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 49,966 psi | 88% | 2618 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 49,748 psi | 88% | 2644 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 48,399 psi | 86% | 2664 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 50,082 psi | 89% | 2625 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 50,662 psi | 90% | 2651 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 49,647 psi | 88% | 2526 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 49,690 psi | 88% | 2533 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 48,907 psi | 86% | 2562 fps | 96.3% |
| Somchem S335 | <<locked>> | 82% | 49,385 psi | 87% | 2533 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 49,342 psi | 87% | 2615 fps | 99.5% |
| Somchem S355 | <<locked>> | 90% | 51,010 psi | 90% | 2661 fps | 99.8% |
| Somchem S365 | <<locked>> | 98% | 48,385 psi | 86% | 2720 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 49,792 psi | 88% | 2516 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 48,588 psi | 86% | 2559 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 49,008 psi | 87% | 2569 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 48,965 psi | 87% | 2595 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 49,414 psi | 87% | 2657 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 86% | 50,285 psi | 89% | 2608 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 48,805 psi | 86% | 2667 fps | 98.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,483 psi | 79% | 2664 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 49,443 psi | 87% | 2641 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 50,444 psi | 89% | 2717 fps | 96.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,709 psi | 65% | 2592 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 50,415 psi | 89% | 2657 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% | 44,715 psi | 79% | 2497 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 47,877 psi | 85% | 2543 fps | 95.1% |
| Accurate 3100 | <<locked>> | 98% | 40,001 psi | 71% | 2510 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 42,148 psi | 75% | 2493 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 35,070 psi | 62% | 2421 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 46,456 psi | 82% | 2579 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 39,697 psi | 70% | 2441 fps | 97.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,061 psi | 74% | 2608 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,726 psi | 70% | 2467 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,293 psi | 75% | 2523 fps | 98.2% |
| Alliant Reloder-16 | 39.7 gr | 84% | 34,925 psi | 62% | 2425 fps | 95.4% |
| Alliant Reloder-17 | 40.7 gr | 80% | 34,330 psi | 61% | 2438 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,676 psi | 54% | 2339 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 94% | 37,072 psi | 66% | 2559 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,469 psi | 80% | 2585 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 39,639 psi | 70% | 2474 fps | 98.9% |
| Bofors RP7 | <<locked>> | 90% | 48,037 psi | 85% | 2585 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,340 psi | 84% | 2608 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,335 psi | 71% | 2477 fps | 96.5% |
| Hodgdon H414 | <<locked>> | 90% | 44,498 psi | 79% | 2612 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 46,876 psi | 83% | 2592 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 30,632 psi | 54% | 2287 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,627 psi | 75% | 2566 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 47,311 psi | 84% | 2680 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,021 psi | 48% | 1473 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,831 psi | 79% | 2543 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 46,586 psi | 82% | 2585 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,713 psi | 74% | 2470 fps | 98.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 43,961 psi | 78% | 2484 fps | 95% |
| IMR 4350 | <<locked>> | 94% | 47,485 psi | 84% | 2602 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,528 psi | 82% | 2562 fps | 95.6% |
| IMR 4831 | <<locked>> | 84% | 33,968 psi | 60% | 2382 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 43,294 psi | 77% | 2552 fps | 98.9% |
| Lovex D073.6 | <<locked>> | 80% | 46,108 psi | 82% | 2566 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,325 psi | 82% | 2516 fps | 99.2% |
| Lovex S062 | <<locked>> | 80% | 42,134 psi | 74% | 2484 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 39,247 psi | 69% | 2428 fps | 95.2% |
| Lovex S070 | <<locked>> | 90% | 44,353 psi | 78% | 2549 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 46,137 psi | 82% | 2543 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 46,035 psi | 81% | 2543 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,742 psi | 74% | 2513 fps | 98.6% |
| Norma URP | <<locked>> | 84% | 35,070 psi | 62% | 2418 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 40,857 psi | 72% | 2520 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 41,046 psi | 73% | 2549 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,819 psi | 85% | 2612 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,311 psi | 48% | 1506 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,975 psi | 76% | 2503 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,266 psi | 78% | 2621 fps | 98.6% |
| ReloadSwiss RS 60 | 40.7 gr | 80% | 36,347 psi | 64% | 2500 fps | 99.6% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 36,796 psi | 65% | 2484 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 39,131 psi | 69% | 2539 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 43,947 psi | 78% | 2493 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 37,565 psi | 66% | 2425 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 90% | 48,037 psi | 85% | 2585 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,247 psi | 69% | 2428 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,108 psi | 82% | 2566 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,134 psi | 74% | 2484 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 44,353 psi | 78% | 2549 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,826 psi | 67% | 2464 fps | 97.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,847 psi | 83% | 2569 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,875 psi | 79% | 2552 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,847 psi | 83% | 2487 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,262 psi | 69% | 2362 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,195 psi | 82% | 2516 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 46,818 psi | 83% | 2490 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,398 psi | 82% | 2566 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 38,247 psi | 68% | 2428 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 28,268 psi | 50% | 2277 fps | 96.1% |
| Vihtavuori N133 | <<locked>> | 80% | 47,050 psi | 83% | 2477 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,250 psi | 76% | 2477 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,540 psi | 77% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,216 psi | 64% | 2365 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 84% | 36,376 psi | 64% | 2415 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 42,163 psi | 75% | 2477 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 35,969 psi | 64% | 2418 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 90% | 32,967 psi | 58% | 2418 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,140 psi | 57% | 2293 fps | 96.4% |
| Winchester 760 | <<locked>> | 90% | 44,498 psi | 79% | 2612 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,806 psi | 54% | 2418 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,324 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 80 powders for 7 x 57 loaded with the .284 | 150gr | Barnes X BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,776 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,776 fps. Accurate 3100 gives the best case fill at 100 %, and 80 of the 80 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 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.