Load Specifications
Load data in caliber 6.5 x 57 with .264 | 140gr | Hornady ECX bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and ReloadSwiss RS 70.
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 2700 | <<locked>> | 82% | 49,951 psi | 88% | 2579 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,082 psi | 89% | 2664 fps | 99.3% |
| Accurate 4064 | <<locked>> | 82% | 48,965 psi | 87% | 2572 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 49,081 psi | 87% | 2664 fps | 99.9% |
| Accurate High Country | <<locked>> | 96% | 47,834 psi | 85% | 2740 fps | 96% |
| ADI AR 2208 | <<locked>> | 84% | 49,806 psi | 88% | 2605 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 50,488 psi | 89% | 2703 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 50,067 psi | 89% | 2625 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 50,299 psi | 89% | 2641 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 50,473 psi | 89% | 2726 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 51,184 psi | 90% | 2746 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 49,908 psi | 88% | 2697 fps | 97.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,024 psi | 88% | 2743 fps | 97.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,384 psi | 84% | 2690 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,046 psi | 73% | 2605 fps | 98.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 50,256 psi | 89% | 2812 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 45,992 psi | 81% | 2671 fps | 96.5% |
| Bofors RP3 | <<locked>> | 84% | 50,357 psi | 89% | 2635 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,024 psi | 88% | 2743 fps | 97.6% |
| Bofors RP7 | <<locked>> | 88% | 50,299 psi | 89% | 2621 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 84% | 51,155 psi | 90% | 2654 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 88% | 48,167 psi | 85% | 2661 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 86% | 48,530 psi | 86% | 2625 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 50,343 psi | 89% | 2651 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 47,659 psi | 84% | 2687 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,013 psi | 64% | 1654 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 49,327 psi | 87% | 2589 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 48,283 psi | 85% | 2608 fps | 97.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 49,211 psi | 87% | 2602 fps | 98.4% |
| IMR 4831 | <<locked>> | 92% | 49,980 psi | 88% | 2664 fps | 99.9% |
| Lovex S062 | <<locked>> | 82% | 49,414 psi | 87% | 2585 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 48,834 psi | 86% | 2598 fps | 99.3% |
| Lovex S070 | <<locked>> | 90% | 49,763 psi | 88% | 2635 fps | 98.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,481 psi | 73% | 2520 fps | 97.9% |
| Norma 203B | <<locked>> | 82% | 49,603 psi | 88% | 2628 fps | 100% |
| Norma 204 | <<locked>> | 90% | 48,182 psi | 85% | 2644 fps | 96.8% |
| Norma MRP | <<locked>> | 98% | 49,574 psi | 88% | 2769 fps | 98.7% |
| Norma URP | <<locked>> | 90% | 48,385 psi | 86% | 2654 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 82% | 50,096 psi | 89% | 2654 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 49,168 psi | 87% | 2733 fps | 96.1% |
| Ramshot Hunter | <<locked>> | 92% | 50,488 psi | 89% | 2703 fps | 99.3% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 43,569 psi | 77% | 2612 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,869 psi | 65% | 1699 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 51,140 psi | 90% | 2638 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 50,836 psi | 90% | 2740 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 49,052 psi | 87% | 2687 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 51,111 psi | 90% | 2762 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 40,030 psi | 71% | 2618 fps | 96.3% |
| Rottweil R 902 | <<locked>> | 82% | 51,039 psi | 90% | 2592 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 50,589 psi | 89% | 2635 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 49,139 psi | 87% | 2628 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 96% | 48,747 psi | 86% | 2677 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 88% | 50,299 psi | 89% | 2621 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 48,834 psi | 86% | 2598 fps | 99.3% |
| Shooters World Precision | <<locked>> | 82% | 49,414 psi | 87% | 2585 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 49,763 psi | 88% | 2635 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 48,863 psi | 86% | 2641 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 49,182 psi | 87% | 2493 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 48,298 psi | 85% | 2549 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 48,298 psi | 85% | 2671 fps | 97.2% |
| Somchem S355 | <<locked>> | 86% | 51,024 psi | 90% | 2635 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 50,647 psi | 90% | 2710 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 49,516 psi | 88% | 2657 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 86% | 48,791 psi | 86% | 2562 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 50,488 psi | 89% | 2654 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,689 psi | 86% | 2635 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 82% | 49,922 psi | 88% | 2569 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 49,429 psi | 87% | 2654 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 98% | 49,385 psi | 87% | 2707 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 49,980 psi | 88% | 2625 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 48,515 psi | 86% | 2667 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,467 psi | 75% | 2733 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 49,371 psi | 87% | 2648 fps | 97.1% |
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 2700 | <<locked>> | 80% | 46,775 psi | 83% | 2526 fps | 97.4% |
| Accurate 3100 | <<locked>> | 88% | 32,924 psi | 58% | 2343 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 45,716 psi | 81% | 2523 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,592 psi | 61% | 2392 fps | 97.6% |
| Accurate High Country | <<locked>> | 94% | 44,527 psi | 79% | 2680 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 43,845 psi | 78% | 2503 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 90% | 41,669 psi | 74% | 2543 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,034 psi | 78% | 2526 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,326 psi | 84% | 2595 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,330 psi | 61% | 2408 fps | 97.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 38,725 psi | 68% | 2530 fps | 99.8% |
| Alliant Reloder-19 | <<locked>> | 90% | 41,104 psi | 73% | 2533 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 94% | 40,973 psi | 72% | 2575 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 82% | 26,411 psi | 47% | 2221 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 92% | 31,879 psi | 56% | 2382 fps | 95% |
| Alliant Reloder-26 | 43.5 gr | 84% | 30,023 psi | 53% | 2375 fps | 95.2% |
| Bofors RP15 | <<locked>> | 98% | 42,931 psi | 76% | 2615 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 44,150 psi | 78% | 2536 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 40,973 psi | 72% | 2575 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 39,218 psi | 69% | 2415 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 44,686 psi | 79% | 2546 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 36,840 psi | 65% | 2441 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 80% | 39,929 psi | 71% | 2464 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,633 psi | 56% | 2306 fps | 98.3% |
| Hodgdon Superformance | <<locked>> | 82% | 38,348 psi | 68% | 2503 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,948 psi | 48% | 1480 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,108 psi | 82% | 2536 fps | 99.9% |
| IMR 4350 | <<locked>> | 84% | 39,798 psi | 70% | 2451 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,654 psi | 72% | 2444 fps | 96.5% |
| IMR 4831 | <<locked>> | 80% | 33,359 psi | 59% | 2349 fps | 97.3% |
| Lovex S062 | <<locked>> | 80% | 46,195 psi | 82% | 2533 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,913 psi | 67% | 2395 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 36,056 psi | 64% | 2372 fps | 95.5% |
| Lovex S071 | <<locked>> | 94% | 34,127 psi | 60% | 2372 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 46,673 psi | 83% | 2582 fps | 100% |
| Norma 204 | <<locked>> | 86% | 41,989 psi | 74% | 2530 fps | 95.1% |
| Norma MRP | 45.3 gr | 90% | 37,565 psi | 66% | 2533 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 34,577 psi | 61% | 2388 fps | 97.5% |
| Ramshot Big Game | <<locked>> | 80% | 46,818 psi | 83% | 2602 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 45,701 psi | 81% | 2667 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 33,576 psi | 59% | 2375 fps | 95.2% |
| Ramshot Magnum | <<locked>> | 98% | 40,524 psi | 72% | 2552 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,238 psi | 48% | 1512 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,817 psi | 79% | 2530 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,249 psi | 73% | 2582 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,301 psi | 61% | 2408 fps | 97.2% |
| ReloadSwiss RS 70 | 41.1 gr | 80% | 33,721 psi | 60% | 2415 fps | 96.4% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 37,144 psi | 66% | 2546 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 48,051 psi | 85% | 2546 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,365 psi | 73% | 2480 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 45,919 psi | 81% | 2572 fps | 95% |
| Rottweil R 905 | <<locked>> | 92% | 42,656 psi | 75% | 2569 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 39,218 psi | 69% | 2415 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,913 psi | 67% | 2395 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 46,195 psi | 82% | 2533 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 36,056 psi | 64% | 2372 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,699 psi | 75% | 2536 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,439 psi | 77% | 2408 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 37,289 psi | 66% | 2346 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 42,250 psi | 75% | 2562 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 41,959 psi | 74% | 2484 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 31,212 psi | 55% | 2349 fps | 99.3% |
| Somchem S385 | <<locked>> | 88% | 37,927 psi | 67% | 2444 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 39,972 psi | 71% | 2418 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,201 psi | 64% | 2395 fps | 97.9% |
| Vihtavuori N165 | <<locked>> | 94% | 39,827 psi | 70% | 2477 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 46,760 psi | 83% | 2520 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,505 psi | 63% | 2392 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 80% | 26,803 psi | 47% | 2234 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,389 psi | 63% | 2369 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 36,840 psi | 65% | 2441 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 84% | 24,656 psi | 44% | 2238 fps | 95.4% |
| Winchester Supreme 780 | <<locked>> | 94% | 43,091 psi | 76% | 2539 fps | 95.5% |
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 87 powders for 6.5 x 57 loaded with the .264 | 140gr | Hornady ECX. Alliant Reloder-26 delivers the highest muzzle velocity at 2,812 fps; across all powders the maximum-charge window runs from 1,654 fps to 2,812 fps. Accurate 3100 gives the best case fill at 100 %, and 87 of the 87 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 58–90 %, 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. Accurate 3100, ADI AR 2225, Alliant Reloder-22 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, Norma MRP, ReloadSwiss RS 70 rank at the top here: for 6.5 x 57 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 2225, Baschieri & Pellagri 109 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.