Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 139gr | Brenneke TOG bullet and 38 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Alliant Reloder-26 and Norma MRP.
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 3100 | <<locked>> | 92% | 41,147 psi | 86% | 2526 fps | 97.9% |
| Accurate 4350 | <<locked>> | 84% | 42,888 psi | 90% | 2572 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 41,452 psi | 87% | 2579 fps | 99.5% |
| Alliant Reloder-23 | <<locked>> | 94% | 41,756 psi | 87% | 2602 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 41,249 psi | 86% | 2625 fps | 98.7% |
| Alliant Reloder-26 | <<locked>> | 90% | 40,466 psi | 85% | 2644 fps | 99.1% |
| Bofors RP15 | <<locked>> | 96% | 43,250 psi | 90% | 2635 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 41,466 psi | 87% | 2520 fps | 99.9% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,178 psi | 90% | 2710 fps | 96.6% |
| Hodgdon Superformance | <<locked>> | 82% | 41,133 psi | 86% | 2579 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,506 psi | 76% | 1683 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 42,192 psi | 88% | 2513 fps | 96.7% |
| IMR 4831 | <<locked>> | 88% | 42,003 psi | 88% | 2539 fps | 99.3% |
| Lovex S065 | <<locked>> | 82% | 42,960 psi | 90% | 2510 fps | 98.5% |
| Lovex S070 | <<locked>> | 82% | 41,017 psi | 86% | 2490 fps | 97.2% |
| Lovex S071 | <<locked>> | 98% | 41,959 psi | 88% | 2543 fps | 98.1% |
| Norma MRP | <<locked>> | 92% | 43,163 psi | 90% | 2664 fps | 97.5% |
| Norma URP | <<locked>> | 84% | 42,308 psi | 88% | 2559 fps | 99.3% |
| Ramshot Hunter | <<locked>> | 84% | 41,249 psi | 86% | 2552 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 94% | 41,901 psi | 88% | 2595 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,115 psi | 78% | 1722 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 42,569 psi | 89% | 2589 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 41,220 psi | 86% | 2598 fps | 98.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,917 psi | 90% | 2700 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 90% | 42,859 psi | 90% | 2585 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 82% | 42,960 psi | 90% | 2510 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 82% | 41,017 psi | 86% | 2490 fps | 97.2% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 42,206 psi | 88% | 2457 fps | 97.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,467 psi | 89% | 2579 fps | 95.8% |
| Somchem S365 | <<locked>> | 86% | 41,437 psi | 87% | 2572 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 40,727 psi | 85% | 2513 fps | 96.3% |
| Unknown powder | <<locked>> | 82% | 42,801 psi | 89% | 2562 fps | 98.9% |
| Vihtavuori N150 | <<locked>> | 82% | 40,872 psi | 85% | 2448 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 42,786 psi | 89% | 2536 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 94% | 41,292 psi | 86% | 2516 fps | 96% |
| Vihtavuori N555 | <<locked>> | 90% | 40,944 psi | 86% | 2572 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 43,120 psi | 90% | 2530 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 42,685 psi | 89% | 2749 fps | 100% |
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 3100 | <<locked>> | 86% | 33,620 psi | 70% | 2365 fps | 95.6% |
| Accurate 4350 | <<locked>> | 80% | 37,405 psi | 78% | 2461 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,347 psi | 76% | 2467 fps | 98.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,701 psi | 56% | 2238 fps | 96.3% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,285 psi | 67% | 2405 fps | 95.5% |
| Alliant Reloder-26 | 44.2 gr | 82% | 30,501 psi | 64% | 2398 fps | 95.6% |
| Bofors RP15 | <<locked>> | 94% | 40,524 psi | 85% | 2579 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,026 psi | 71% | 2369 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,509 psi | 85% | 2648 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 38,087 psi | 80% | 2510 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,238 psi | 57% | 1499 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,159 psi | 78% | 2408 fps | 95.1% |
| IMR 4831 | <<locked>> | 80% | 32,692 psi | 68% | 2343 fps | 97.2% |
| Lovex S065 | <<locked>> | 80% | 40,335 psi | 84% | 2457 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 38,479 psi | 80% | 2434 fps | 96.4% |
| Lovex S071 | <<locked>> | 90% | 32,503 psi | 68% | 2339 fps | 95.2% |
| Norma MRP | 46 gr | 88% | 37,652 psi | 79% | 2546 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 37,057 psi | 77% | 2454 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 80% | 36,027 psi | 75% | 2444 fps | 96.3% |
| Ramshot Magnum | <<locked>> | 92% | 38,914 psi | 81% | 2533 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,847 psi | 58% | 1539 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,057 psi | 77% | 2477 fps | 98.1% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,027 psi | 75% | 2484 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,463 psi | 78% | 2572 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 88% | 40,103 psi | 84% | 2530 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,335 psi | 84% | 2457 fps | 98% |
| Shooters World SW4350 | <<locked>> | 80% | 38,479 psi | 80% | 2434 fps | 96.4% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,537 psi | 83% | 2405 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,726 psi | 83% | 2523 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 33,721 psi | 70% | 2418 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 38,174 psi | 80% | 2461 fps | 95.4% |
| Unknown powder | <<locked>> | 80% | 40,089 psi | 84% | 2510 fps | 98.4% |
| Vihtavuori N150 | <<locked>> | 80% | 38,247 psi | 80% | 2398 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,089 psi | 84% | 2484 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 92% | 38,667 psi | 81% | 2464 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 80% | 29,399 psi | 61% | 2310 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,565 psi | 78% | 2425 fps | 99.7% |
| Winchester StaBALL HD | 42.4 gr | 82% | 25,121 psi | 52% | 2264 fps | 96% |
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 38 powders for 6.5 x 57 R loaded with the .264 | 139gr | Brenneke TOG. Winchester StaBALL HD delivers the highest muzzle velocity at 2,749 fps; across all powders the maximum-charge window runs from 1,683 fps to 2,749 fps. Hodgdon Retumbo gives the best case fill at 100 %, and 38 of the 38 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 76–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.264" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Hodgdon Retumbo, Hodgdon TrailBoss, ReloadSwiss RS 14 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. Winchester StaBALL HD, Alliant Reloder-26, Norma MRP rank at the top here: for 6.5 x 57 R with the .264 | 139gr | Brenneke TOG 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.