Load Specifications
Load data in caliber 7 x 57 R with .284 | 130gr | Barnes X BT bullet and 45 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>> | 82% | 42,917 psi | 87% | 2654 fps | 100% |
| Accurate 4064 | <<locked>> | 84% | 42,670 psi | 87% | 2687 fps | 99.9% |
| Accurate 4350 | <<locked>> | 94% | 42,786 psi | 87% | 2756 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 43,395 psi | 88% | 2684 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 43,584 psi | 88% | 2805 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 42,989 psi | 87% | 2707 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 84% | 43,439 psi | 88% | 2720 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 94% | 42,308 psi | 86% | 2756 fps | 96% |
| Alliant Reloder-17 | <<locked>> | 90% | 42,351 psi | 86% | 2789 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 44,048 psi | 89% | 2730 fps | 96.6% |
| Bofors RP3 | <<locked>> | 86% | 43,192 psi | 88% | 2720 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 86% | 43,874 psi | 89% | 2713 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 44,063 psi | 89% | 2749 fps | 98.1% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 43,685 psi | 89% | 2762 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,360 psi | 72% | 1765 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 43,613 psi | 88% | 2694 fps | 98.1% |
| IMR 4064 | <<locked>> | 84% | 42,888 psi | 87% | 2664 fps | 97% |
| IMR 4831 | <<locked>> | 96% | 43,642 psi | 89% | 2756 fps | 96.5% |
| IMR 4895 | <<locked>> | 84% | 44,411 psi | 90% | 2753 fps | 97.9% |
| Lovex D073.6 | <<locked>> | 82% | 44,527 psi | 90% | 2723 fps | 99.7% |
| Lovex S062 | <<locked>> | 84% | 43,062 psi | 87% | 2677 fps | 98.7% |
| Norma 203B | <<locked>> | 84% | 42,772 psi | 87% | 2710 fps | 97.5% |
| Norma URP | <<locked>> | 94% | 42,583 psi | 86% | 2746 fps | 95.9% |
| Ramshot Big Game | <<locked>> | 84% | 42,090 psi | 85% | 2717 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,085 psi | 73% | 1811 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 42,250 psi | 86% | 2762 fps | 96.7% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 42,322 psi | 86% | 2802 fps | 99.6% |
| Rottweil R 902 | <<locked>> | 82% | 42,772 psi | 87% | 2648 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 88% | 43,091 psi | 87% | 2713 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 82% | 44,527 psi | 90% | 2723 fps | 99.7% |
| Shooters World Precision | <<locked>> | 84% | 43,062 psi | 87% | 2677 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 43,859 psi | 89% | 2756 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 43,424 psi | 88% | 2697 fps | 97.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 42,902 psi | 87% | 2605 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 43,714 psi | 89% | 2713 fps | 98.1% |
| Somchem S365 | <<locked>> | 98% | 43,207 psi | 88% | 2805 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 84% | 44,295 psi | 90% | 2684 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 42,192 psi | 86% | 2635 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 90% | 44,440 psi | 90% | 2697 fps | 99.2% |
| Vihtavuori N160 | <<locked>> | 94% | 44,541 psi | 90% | 2746 fps | 96.4% |
| Vihtavuori N540 | <<locked>> | 84% | 43,294 psi | 88% | 2674 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 94% | 43,888 psi | 89% | 2753 fps | 96% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 39,276 psi | 80% | 2730 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 42,409 psi | 86% | 2677 fps | 97.9% |
| Winchester StaBALL Match | <<locked>> | 82% | 42,873 psi | 87% | 2703 fps | 98% |
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% | 40,263 psi | 82% | 2605 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 37,971 psi | 77% | 2592 fps | 99.5% |
| Accurate 4350 | <<locked>> | 92% | 40,103 psi | 81% | 2700 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 82% | 38,435 psi | 78% | 2575 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 41,031 psi | 83% | 2749 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 35,940 psi | 73% | 2556 fps | 96.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 38,435 psi | 78% | 2612 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 40,118 psi | 81% | 2703 fps | 95.2% |
| Alliant Reloder-17 | 43.2 gr | 84% | 35,201 psi | 71% | 2612 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 41,234 psi | 84% | 2671 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 35,810 psi | 73% | 2562 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 84% | 41,307 psi | 84% | 2661 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 34,867 psi | 71% | 2549 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 38,667 psi | 78% | 2657 fps | 97.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,484 psi | 54% | 1578 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,944 psi | 83% | 2641 fps | 97.5% |
| IMR 4064 | <<locked>> | 80% | 38,145 psi | 77% | 2562 fps | 95.6% |
| IMR 4831 | <<locked>> | 94% | 41,017 psi | 83% | 2703 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 39,291 psi | 80% | 2644 fps | 96.6% |
| Lovex D073.6 | <<locked>> | 80% | 41,611 psi | 84% | 2667 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 38,363 psi | 78% | 2579 fps | 97.7% |
| Norma 203B | <<locked>> | 80% | 37,840 psi | 77% | 2602 fps | 96.1% |
| Norma URP | <<locked>> | 92% | 40,030 psi | 81% | 2694 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 37,101 psi | 75% | 2605 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,948 psi | 55% | 1617 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 39,566 psi | 80% | 2703 fps | 96% |
| ReloadSwiss RS 60 | 41.2 gr | 80% | 33,156 psi | 67% | 2569 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 80% | 40,219 psi | 82% | 2595 fps | 98% |
| Rottweil R 903 | <<locked>> | 80% | 33,794 psi | 69% | 2507 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 41,611 psi | 84% | 2667 fps | 99.4% |
| Shooters World Precision | <<locked>> | 80% | 38,363 psi | 78% | 2579 fps | 97.7% |
| SNPE Vectan SP 11 | 41.5 gr | 82% | 36,332 psi | 74% | 2592 fps | 95.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 40,872 psi | 83% | 2644 fps | 96.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 35,969 psi | 73% | 2467 fps | 99.6% |
| Somchem S355 | <<locked>> | 80% | 34,635 psi | 70% | 2510 fps | 95.6% |
| Somchem S365 | <<locked>> | 86% | 30,458 psi | 62% | 2487 fps | 95% |
| Vihtavuori N135 | <<locked>> | 80% | 39,189 psi | 79% | 2589 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 39,668 psi | 80% | 2585 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 32,779 psi | 66% | 2448 fps | 96.5% |
| Vihtavuori N160 | <<locked>> | 92% | 41,872 psi | 85% | 2694 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 38,363 psi | 78% | 2575 fps | 99.3% |
| Vihtavuori N550 | <<locked>> | 92% | 41,321 psi | 84% | 2700 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 98% | 36,912 psi | 75% | 2674 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 35,201 psi | 71% | 2516 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 40,306 psi | 82% | 2651 fps | 97.4% |
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 45 powders for 7 x 57 R loaded with the .284 | 130gr | Barnes X BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,805 fps; across all powders the maximum-charge window runs from 1,765 fps to 2,805 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 45 of the 45 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (340 MPa), the top charges use 72–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, Vihtavuori N555 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 | 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.