Load Specifications
Load data in caliber 7 x 57 R with .284 | 130gr | Speer Boat-Tail bullet and 55 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 SNPE Vectan SP 11.
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% | 43,004 psi | 87% | 2700 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 43,192 psi | 88% | 2740 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 44,614 psi | 90% | 2828 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 82% | 44,222 psi | 90% | 2756 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 86% | 42,380 psi | 86% | 2700 fps | 97% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 42,757 psi | 87% | 2831 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 44,541 psi | 90% | 2776 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 84% | 42,308 psi | 86% | 2736 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 96% | 44,164 psi | 90% | 2835 fps | 97.1% |
| Alliant Reloder-17 | <<locked>> | 92% | 44,599 psi | 90% | 2874 fps | 98.7% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 43,294 psi | 88% | 2753 fps | 96.9% |
| Bofors RP3 | <<locked>> | 88% | 44,585 psi | 90% | 2789 fps | 99% |
| Hodgdon H380 | <<locked>> | 86% | 42,728 psi | 87% | 2733 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 82% | 44,570 psi | 90% | 2769 fps | 98.6% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 43,366 psi | 88% | 2776 fps | 98.4% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 42,931 psi | 87% | 2785 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,012 psi | 71% | 1791 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 42,685 psi | 87% | 2717 fps | 98.2% |
| IMR 3031 | <<locked>> | 82% | 43,714 psi | 89% | 2766 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 44,512 psi | 90% | 2736 fps | 97.8% |
| IMR 4831 | <<locked>> | 96% | 42,772 psi | 87% | 2776 fps | 96.7% |
| IMR 4895 | <<locked>> | 84% | 43,366 psi | 88% | 2769 fps | 98% |
| Lovex D073.6 | <<locked>> | 82% | 43,076 psi | 87% | 2736 fps | 99.7% |
| Lovex S060 | <<locked>> | 82% | 44,353 psi | 90% | 2690 fps | 98.1% |
| Lovex S062 | <<locked>> | 86% | 44,295 psi | 90% | 2740 fps | 99.1% |
| Norma 201 | <<locked>> | 82% | 43,105 psi | 87% | 2703 fps | 98.9% |
| Norma 202 | <<locked>> | 82% | 43,482 psi | 88% | 2723 fps | 99.9% |
| Norma 203B | <<locked>> | 86% | 44,309 psi | 90% | 2779 fps | 98.2% |
| Norma URP | <<locked>> | 94% | 41,626 psi | 84% | 2766 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 86% | 44,063 psi | 89% | 2795 fps | 98% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,302 psi | 72% | 1831 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 44,382 psi | 90% | 2841 fps | 97.6% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 44,425 psi | 90% | 2884 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 44,411 psi | 90% | 2848 fps | 96.7% |
| Rottweil R 902 | <<locked>> | 84% | 43,584 psi | 88% | 2707 fps | 99% |
| Rottweil R 903 | <<locked>> | 90% | 44,483 psi | 90% | 2779 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 82% | 43,076 psi | 87% | 2736 fps | 99.7% |
| Shooters World Precision | <<locked>> | 86% | 44,295 psi | 90% | 2740 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 42,830 psi | 87% | 2776 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 44,570 psi | 90% | 2740 fps | 96.3% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 42,482 psi | 86% | 2717 fps | 97.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 41,945 psi | 85% | 2621 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 44,164 psi | 90% | 2667 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 44,106 psi | 89% | 2736 fps | 98% |
| Somchem S355 | <<locked>> | 88% | 42,554 psi | 86% | 2730 fps | 98.2% |
| Somchem S365 | <<locked>> | 98% | 42,525 psi | 86% | 2831 fps | 99.3% |
| Vihtavuori N135 | <<locked>> | 84% | 42,815 psi | 87% | 2694 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 43,714 psi | 89% | 2700 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 43,395 psi | 88% | 2717 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 94% | 43,918 psi | 89% | 2772 fps | 96.7% |
| Vihtavuori N540 | <<locked>> | 84% | 42,134 psi | 85% | 2690 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 94% | 43,033 psi | 87% | 2772 fps | 96.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 38,145 psi | 77% | 2743 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 44,498 psi | 90% | 2759 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,018 psi | 85% | 2723 fps | 98.2% |
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% | 37,521 psi | 76% | 2598 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 35,491 psi | 72% | 2579 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 38,711 psi | 79% | 2710 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 41,336 psi | 84% | 2697 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 37,434 psi | 76% | 2595 fps | 95.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 39,987 psi | 81% | 2766 fps | 96% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,664 psi | 70% | 2562 fps | 96.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 37,115 psi | 75% | 2621 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 39,117 psi | 79% | 2723 fps | 95.4% |
| Alliant Reloder-17 | 45.5 gr | 84% | 34,011 psi | 69% | 2625 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 40,480 psi | 82% | 2694 fps | 96% |
| Bofors RP3 | <<locked>> | 80% | 34,026 psi | 69% | 2559 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 84% | 39,871 psi | 81% | 2671 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 41,640 psi | 84% | 2710 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 33,678 psi | 68% | 2559 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 37,652 psi | 76% | 2671 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,976 psi | 53% | 1598 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,089 psi | 81% | 2661 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 40,886 psi | 83% | 2713 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,883 psi | 75% | 2575 fps | 95.7% |
| IMR 4831 | <<locked>> | 92% | 37,391 psi | 76% | 2661 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 38,000 psi | 77% | 2654 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 80% | 40,132 psi | 81% | 2680 fps | 99.4% |
| Lovex S060 | <<locked>> | 80% | 41,756 psi | 85% | 2641 fps | 97.6% |
| Lovex S062 | <<locked>> | 80% | 36,738 psi | 75% | 2582 fps | 97.6% |
| Norma 201 | <<locked>> | 80% | 40,509 psi | 82% | 2651 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 40,828 psi | 83% | 2671 fps | 99.8% |
| Norma 203B | <<locked>> | 80% | 36,506 psi | 74% | 2612 fps | 96.1% |
| Norma URP | <<locked>> | 92% | 39,102 psi | 79% | 2710 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 35,940 psi | 73% | 2618 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,324 psi | 53% | 1637 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 38,667 psi | 78% | 2723 fps | 96.1% |
| ReloadSwiss RS 60 | 43.4 gr | 80% | 31,850 psi | 65% | 2575 fps | 97.1% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 41,423 psi | 84% | 2789 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 38,493 psi | 78% | 2602 fps | 98% |
| Rottweil R 903 | <<locked>> | 80% | 32,010 psi | 65% | 2503 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 40,132 psi | 81% | 2680 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 36,738 psi | 75% | 2582 fps | 97.6% |
| SNPE Vectan SP 11 | 43.7 gr | 82% | 35,143 psi | 71% | 2602 fps | 95.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 41,350 psi | 84% | 2674 fps | 95.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,958 psi | 81% | 2664 fps | 97.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,809 psi | 71% | 2480 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 41,539 psi | 84% | 2618 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 41,234 psi | 84% | 2680 fps | 97.3% |
| Somchem S355 | <<locked>> | 80% | 32,895 psi | 67% | 2510 fps | 95.3% |
| Somchem S365 | <<locked>> | 88% | 30,705 psi | 62% | 2539 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 37,797 psi | 77% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,566 psi | 78% | 2602 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 31,328 psi | 64% | 2451 fps | 96.3% |
| Vihtavuori N160 | <<locked>> | 90% | 38,493 psi | 78% | 2661 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 37,028 psi | 75% | 2585 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 92% | 40,408 psi | 82% | 2717 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 98% | 35,563 psi | 72% | 2684 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 34,040 psi | 69% | 2526 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 39,247 psi | 80% | 2667 fps | 97.5% |
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 78 powders for 7 x 57 R loaded with the .284 | 130gr | Speer Boat-Tail. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,791 fps to 2,884 fps. Accurate 3100 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.284" calls for a 1:13.5 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, SNPE Vectan SP 11 rank at the top here: for 7 x 57 R with the .284 | 130gr | Speer Boat-Tail they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 3100, Alliant Reloder-26 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.