Load Specifications
Load data in caliber 6.5 x 57 R with .264 | 140gr | Hornady ECX bullet and 39 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Winchester StaBALL HD 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>> | 94% | 40,611 psi | 85% | 2503 fps | 97.7% |
| Accurate 4350 | <<locked>> | 86% | 42,772 psi | 89% | 2556 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 86% | 41,640 psi | 87% | 2569 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 82% | 41,524 psi | 87% | 2582 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 96% | 41,539 psi | 87% | 2589 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,046 psi | 86% | 2605 fps | 98.5% |
| Alliant Reloder-26 | <<locked>> | 94% | 43,207 psi | 90% | 2687 fps | 99.4% |
| Bofors RP7 | <<locked>> | 82% | 41,698 psi | 87% | 2464 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 84% | 42,293 psi | 88% | 2552 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 82% | 42,757 psi | 89% | 2520 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 41,263 psi | 86% | 2507 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 41,321 psi | 86% | 2566 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,013 psi | 75% | 1654 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 42,293 psi | 88% | 2500 fps | 96.6% |
| IMR 4831 | <<locked>> | 86% | 40,915 psi | 85% | 2510 fps | 99.1% |
| Lovex S065 | <<locked>> | 84% | 43,047 psi | 90% | 2497 fps | 98.4% |
| Lovex S070 | <<locked>> | 84% | 41,292 psi | 86% | 2480 fps | 97.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,481 psi | 87% | 2520 fps | 97.9% |
| Norma MRP | <<locked>> | 94% | 43,134 psi | 90% | 2651 fps | 97.4% |
| Norma URP | <<locked>> | 86% | 42,395 psi | 89% | 2549 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 41,220 psi | 86% | 2543 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,869 psi | 77% | 1699 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 42,395 psi | 89% | 2572 fps | 99.1% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 41,626 psi | 87% | 2592 fps | 98.8% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 40,030 psi | 84% | 2618 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 82% | 41,698 psi | 87% | 2464 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 43,047 psi | 90% | 2497 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 84% | 41,292 psi | 86% | 2480 fps | 97.1% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 42,438 psi | 89% | 2448 fps | 97.2% |
| Somchem S365 | <<locked>> | 88% | 41,089 psi | 86% | 2559 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 43,221 psi | 90% | 2549 fps | 96.8% |
| Vihtavuori N150 | <<locked>> | 82% | 42,830 psi | 89% | 2470 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 41,350 psi | 86% | 2497 fps | 99% |
| Vihtavuori N165 | <<locked>> | 96% | 42,641 psi | 89% | 2530 fps | 96.2% |
| Vihtavuori N550 | <<locked>> | 84% | 40,712 psi | 85% | 2500 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 94% | 43,207 psi | 90% | 2605 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 40,683 psi | 85% | 2474 fps | 99.9% |
| Winchester 760 | <<locked>> | 84% | 42,293 psi | 88% | 2552 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,467 psi | 89% | 2733 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>> | 88% | 32,924 psi | 69% | 2343 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 34,592 psi | 72% | 2392 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,330 psi | 72% | 2408 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,725 psi | 81% | 2530 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,411 psi | 55% | 2221 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 92% | 31,879 psi | 67% | 2382 fps | 95% |
| Alliant Reloder-26 | 43.5 gr | 84% | 30,023 psi | 63% | 2375 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 39,218 psi | 82% | 2415 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 36,840 psi | 77% | 2441 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 80% | 39,929 psi | 83% | 2464 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,633 psi | 66% | 2306 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 82% | 38,348 psi | 80% | 2503 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,948 psi | 56% | 1480 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 39,798 psi | 83% | 2451 fps | 95.8% |
| IMR 4831 | <<locked>> | 80% | 33,359 psi | 70% | 2349 fps | 97.3% |
| Lovex S065 | <<locked>> | 80% | 37,913 psi | 79% | 2395 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 36,056 psi | 75% | 2372 fps | 95.5% |
| Lovex S071 | <<locked>> | 94% | 34,127 psi | 71% | 2372 fps | 95.7% |
| Norma MRP | 45.3 gr | 90% | 37,565 psi | 78% | 2533 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 34,577 psi | 72% | 2388 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 80% | 33,576 psi | 70% | 2375 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,238 psi | 57% | 1512 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,301 psi | 72% | 2408 fps | 97.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 33,721 psi | 70% | 2415 fps | 96.4% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 37,144 psi | 78% | 2546 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 39,218 psi | 82% | 2415 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,913 psi | 79% | 2395 fps | 97.2% |
| Shooters World SW4350 | <<locked>> | 80% | 36,056 psi | 75% | 2372 fps | 95.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,289 psi | 78% | 2346 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 31,212 psi | 65% | 2349 fps | 99.3% |
| Somchem S385 | <<locked>> | 88% | 37,927 psi | 79% | 2444 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 39,972 psi | 84% | 2418 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,201 psi | 76% | 2395 fps | 97.9% |
| Vihtavuori N165 | <<locked>> | 94% | 39,827 psi | 83% | 2477 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 35,505 psi | 74% | 2392 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 80% | 26,803 psi | 56% | 2234 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,389 psi | 74% | 2369 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 36,840 psi | 77% | 2441 fps | 95.5% |
| Winchester StaBALL HD | 41.8 gr | 84% | 24,656 psi | 52% | 2238 fps | 95.4% |
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 64 powders for 6.5 x 57 R loaded with the .264 | 140gr | Hornady ECX. Winchester StaBALL HD delivers the highest muzzle velocity at 2,733 fps; across all powders the maximum-charge window runs from 1,654 fps to 2,733 fps. ADI AR 2225 gives the best case fill at 100 %, and 64 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (330 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP30 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. Alliant Reloder-26, Winchester StaBALL HD, Norma MRP rank at the top here: for 6.5 x 57 R with the .264 | 140gr | Hornady ECX they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, ADI AR 2225 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.