Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 144gr | Berger Long Range Hybrid Target bullet and 39 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% | 41,321 psi | 86% | 2484 fps | 98.2% |
| Accurate 4350 | <<locked>> | 84% | 43,105 psi | 90% | 2526 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 84% | 41,553 psi | 87% | 2533 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 94% | 41,959 psi | 88% | 2559 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 41,568 psi | 87% | 2585 fps | 99% |
| Alliant Reloder-26 | <<locked>> | 90% | 40,553 psi | 85% | 2602 fps | 99.3% |
| Bofors RP15 | <<locked>> | 96% | 43,250 psi | 90% | 2585 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 82% | 42,061 psi | 88% | 2516 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 41,655 psi | 87% | 2477 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 41,263 psi | 86% | 2533 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,564 psi | 76% | 1644 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 42,380 psi | 89% | 2467 fps | 97% |
| IMR 4831 | <<locked>> | 84% | 41,133 psi | 86% | 2477 fps | 99.4% |
| Lovex S065 | <<locked>> | 82% | 43,033 psi | 90% | 2461 fps | 98.7% |
| Lovex S070 | <<locked>> | 82% | 41,379 psi | 86% | 2451 fps | 97.5% |
| Lovex S071 | <<locked>> | 98% | 42,206 psi | 88% | 2500 fps | 98.4% |
| Norma MRP | <<locked>> | 92% | 43,207 psi | 90% | 2618 fps | 97.8% |
| Norma URP | <<locked>> | 84% | 42,482 psi | 89% | 2516 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 84% | 41,263 psi | 86% | 2510 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 96% | 40,712 psi | 85% | 2526 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,188 psi | 78% | 1683 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 42,641 psi | 89% | 2543 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 41,582 psi | 87% | 2559 fps | 99.1% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,018 psi | 90% | 2657 fps | 98% |
| Rottweil R 905 | <<locked>> | 90% | 42,989 psi | 90% | 2539 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 82% | 43,033 psi | 90% | 2461 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 82% | 41,379 psi | 86% | 2451 fps | 97.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 42,293 psi | 88% | 2415 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,583 psi | 89% | 2536 fps | 96.2% |
| Somchem S365 | <<locked>> | 86% | 41,423 psi | 87% | 2523 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 40,828 psi | 85% | 2470 fps | 96.6% |
| Vihtavuori N160 | <<locked>> | 82% | 41,365 psi | 86% | 2464 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 94% | 42,917 psi | 90% | 2503 fps | 96.7% |
| Vihtavuori N550 | <<locked>> | 82% | 40,857 psi | 85% | 2467 fps | 99% |
| Vihtavuori N555 | <<locked>> | 90% | 41,307 psi | 86% | 2533 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 43,265 psi | 90% | 2487 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 42,337 psi | 88% | 2520 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 98% | 42,859 psi | 90% | 2707 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,917 psi | 90% | 2507 fps | 96% |
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>> | 84% | 31,618 psi | 66% | 2277 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 37,492 psi | 78% | 2418 fps | 98.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,593 psi | 76% | 2428 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,905 psi | 56% | 2205 fps | 96.8% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,372 psi | 68% | 2369 fps | 96% |
| Alliant Reloder-26 | 42.1 gr | 80% | 28,616 psi | 60% | 2306 fps | 95% |
| Bofors RP15 | <<locked>> | 94% | 40,756 psi | 85% | 2536 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 39,349 psi | 82% | 2461 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,055 psi | 71% | 2326 fps | 99.2% |
| Hodgdon Superformance | <<locked>> | 80% | 38,377 psi | 80% | 2474 fps | 96.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,325 psi | 57% | 1467 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,217 psi | 78% | 2362 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 36,201 psi | 76% | 2379 fps | 98.4% |
| Lovex S065 | <<locked>> | 80% | 40,596 psi | 85% | 2415 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 38,769 psi | 81% | 2398 fps | 96.8% |
| Lovex S071 | <<locked>> | 90% | 32,706 psi | 68% | 2303 fps | 95.6% |
| Norma MRP | 43.9 gr | 86% | 35,389 psi | 74% | 2448 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 37,362 psi | 78% | 2415 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 80% | 36,158 psi | 76% | 2402 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 94% | 37,768 psi | 79% | 2464 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,688 psi | 58% | 1499 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,260 psi | 78% | 2438 fps | 98.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,216 psi | 76% | 2444 fps | 97.8% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,492 psi | 78% | 2530 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 88% | 40,147 psi | 84% | 2484 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,596 psi | 85% | 2415 fps | 98.3% |
| Shooters World SW4350 | <<locked>> | 80% | 38,769 psi | 81% | 2398 fps | 96.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,624 psi | 83% | 2362 fps | 96.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,769 psi | 83% | 2480 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 33,794 psi | 71% | 2375 fps | 99.9% |
| Somchem S385 | <<locked>> | 86% | 38,232 psi | 80% | 2418 fps | 95.8% |
| Vihtavuori N160 | <<locked>> | 80% | 38,667 psi | 81% | 2411 fps | 98.8% |
| Vihtavuori N165 | <<locked>> | 90% | 37,565 psi | 78% | 2398 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 38,247 psi | 80% | 2415 fps | 98.5% |
| Vihtavuori N555 | <<locked>> | 80% | 29,660 psi | 62% | 2277 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,797 psi | 79% | 2385 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 39,624 psi | 83% | 2467 fps | 96.9% |
| Winchester StaBALL HD | 40.4 gr | 80% | 23,699 psi | 50% | 2172 fps | 95.3% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,103 psi | 84% | 2454 fps | 95.2% |
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 39 powders for 6.5 x 57 R loaded with the .264 | 144gr | Berger Long Range Hybrid Target. Winchester StaBALL HD delivers the highest muzzle velocity at 2,707 fps; across all powders the maximum-charge window runs from 1,644 fps to 2,707 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 39 of the 39 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 144.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14, ReloadSwiss RS 76 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 | 144gr | Berger Long Range Hybrid Target 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.