Load Specifications
Load data in caliber 6.5 x 57 with .264 | 139gr | Norma FMJ Elektron bullet and 67 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 3100 | <<locked>> | 98% | 50,734 psi | 90% | 2690 fps | 99.5% |
| Accurate 4350 | <<locked>> | 88% | 49,211 psi | 87% | 2680 fps | 99.9% |
| Accurate High Country | <<locked>> | 94% | 48,080 psi | 85% | 2756 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 82% | 49,269 psi | 87% | 2612 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 50,328 psi | 89% | 2720 fps | 97.5% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 50,241 psi | 89% | 2713 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 49,763 psi | 88% | 2635 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 50,430 psi | 89% | 2740 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 50,850 psi | 90% | 2756 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 49,603 psi | 88% | 2707 fps | 97.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 50,328 psi | 89% | 2766 fps | 97.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,937 psi | 90% | 2756 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,266 psi | 78% | 2684 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 50,618 psi | 89% | 2835 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,240 psi | 87% | 2746 fps | 97.5% |
| Bofors RP3 | <<locked>> | 82% | 50,575 psi | 89% | 2651 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 50,328 psi | 89% | 2766 fps | 97.8% |
| Bofors RP7 | <<locked>> | 86% | 50,053 psi | 88% | 2631 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 82% | 50,749 psi | 90% | 2664 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 86% | 48,283 psi | 85% | 2677 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 84% | 48,269 psi | 85% | 2638 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 50,401 psi | 89% | 2667 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,192 psi | 76% | 2713 fps | 96.6% |
| Hodgdon Superformance | <<locked>> | 88% | 50,937 psi | 90% | 2756 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,376 psi | 64% | 1680 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 50,952 psi | 90% | 2667 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 48,544 psi | 86% | 2612 fps | 98.5% |
| IMR 4831 | <<locked>> | 90% | 49,821 psi | 88% | 2674 fps | 100% |
| IMR 7828 SSC | <<locked>> | 98% | 49,023 psi | 87% | 2740 fps | 96% |
| Lovex S065 | <<locked>> | 86% | 48,762 psi | 86% | 2612 fps | 99.4% |
| Lovex S070 | <<locked>> | 88% | 49,588 psi | 88% | 2648 fps | 98.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,918 psi | 79% | 2595 fps | 98.7% |
| Norma 204 | <<locked>> | 88% | 48,022 psi | 85% | 2657 fps | 96.9% |
| Norma MRP | <<locked>> | 96% | 49,574 psi | 88% | 2785 fps | 98.8% |
| Norma URP | <<locked>> | 88% | 48,254 psi | 85% | 2664 fps | 99.8% |
| Ramshot Grand | <<locked>> | 98% | 49,095 psi | 87% | 2753 fps | 96.4% |
| Ramshot Hunter | <<locked>> | 90% | 50,343 psi | 89% | 2720 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,746 psi | 83% | 2687 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,260 psi | 66% | 1726 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 50,807 psi | 90% | 2648 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 50,604 psi | 89% | 2749 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 48,892 psi | 86% | 2700 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 51,039 psi | 90% | 2779 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,149 psi | 76% | 2707 fps | 97.7% |
| Rottweil R 903 | <<locked>> | 84% | 50,734 psi | 90% | 2651 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,849 psi | 86% | 2641 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 94% | 48,979 psi | 87% | 2697 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 86% | 50,053 psi | 88% | 2631 fps | 98.4% |
| Shooters World Long Rifle | <<locked>> | 86% | 48,762 psi | 86% | 2612 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 88% | 49,588 psi | 88% | 2648 fps | 98.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 48,776 psi | 86% | 2654 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 48,704 psi | 86% | 2500 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 51,169 psi | 90% | 2612 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 48,530 psi | 86% | 2690 fps | 97.4% |
| Somchem S355 | <<locked>> | 84% | 50,720 psi | 90% | 2644 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 50,821 psi | 90% | 2723 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 49,734 psi | 88% | 2677 fps | 98.3% |
| Vihtavuori N150 | <<locked>> | 84% | 48,704 psi | 86% | 2579 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 50,169 psi | 89% | 2664 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 98% | 48,965 psi | 87% | 2654 fps | 97.9% |
| Vihtavuori N550 | <<locked>> | 88% | 49,501 psi | 88% | 2671 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 96% | 49,980 psi | 88% | 2730 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 50,024 psi | 88% | 2772 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 49,545 psi | 88% | 2635 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 48,283 psi | 85% | 2677 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,890 psi | 81% | 2812 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 49,501 psi | 88% | 2667 fps | 97.4% |
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% | 33,663 psi | 60% | 2369 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 37,463 psi | 66% | 2464 fps | 98.5% |
| Accurate High Country | <<locked>> | 92% | 44,701 psi | 79% | 2694 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 46,267 psi | 82% | 2562 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 41,452 psi | 73% | 2552 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 41,466 psi | 73% | 2552 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,992 psi | 83% | 2589 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,651 psi | 65% | 2477 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,437 psi | 73% | 2592 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,002 psi | 72% | 2546 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,133 psi | 73% | 2592 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,774 psi | 47% | 2241 fps | 96.4% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,314 psi | 57% | 2408 fps | 95.5% |
| Alliant Reloder-26 | 44.3 gr | 82% | 30,560 psi | 54% | 2402 fps | 95.7% |
| Bofors RP15 | <<locked>> | 94% | 40,582 psi | 72% | 2579 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 47,050 psi | 83% | 2595 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 41,133 psi | 73% | 2592 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 41,626 psi | 74% | 2480 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 47,601 psi | 84% | 2612 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 39,523 psi | 70% | 2510 fps | 96.6% |
| Hodgdon H4350 | <<locked>> | 80% | 42,264 psi | 75% | 2526 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,098 psi | 60% | 2372 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,538 psi | 72% | 2651 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 38,348 psi | 68% | 2516 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,137 psi | 48% | 1499 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,246 psi | 66% | 2408 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,859 psi | 76% | 2507 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 35,940 psi | 64% | 2418 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 96% | 45,934 psi | 81% | 2680 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 40,393 psi | 71% | 2457 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 38,798 psi | 69% | 2444 fps | 96.5% |
| Lovex S071 | <<locked>> | 90% | 32,779 psi | 58% | 2346 fps | 95.3% |
| Norma 204 | <<locked>> | 84% | 41,887 psi | 74% | 2543 fps | 95.3% |
| Norma MRP | 46.2 gr | 88% | 37,927 psi | 67% | 2552 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 37,376 psi | 66% | 2461 fps | 98.4% |
| Ramshot Grand | <<locked>> | 96% | 45,571 psi | 81% | 2687 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 36,071 psi | 64% | 2444 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 96% | 40,509 psi | 72% | 2566 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 49% | 1539 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,442 psi | 84% | 2595 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,034 psi | 78% | 2644 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,130 psi | 66% | 2480 fps | 98.1% |
| ReloadSwiss RS 70 | 42.8 gr | 80% | 36,056 psi | 64% | 2484 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,507 psi | 66% | 2575 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 44,527 psi | 79% | 2549 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,832 psi | 81% | 2589 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 40,132 psi | 71% | 2530 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 41,626 psi | 74% | 2480 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,393 psi | 71% | 2457 fps | 98% |
| Shooters World SW4350 | <<locked>> | 80% | 38,798 psi | 69% | 2444 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,513 psi | 80% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,672 psi | 81% | 2457 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,624 psi | 70% | 2408 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,755 psi | 70% | 2526 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 44,657 psi | 79% | 2546 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 33,794 psi | 60% | 2418 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 38,247 psi | 68% | 2464 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 42,815 psi | 76% | 2480 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,682 psi | 68% | 2457 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 39,987 psi | 71% | 2493 fps | 95.6% |
| Vihtavuori N550 | <<locked>> | 80% | 38,174 psi | 67% | 2461 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 29,486 psi | 52% | 2313 fps | 96.5% |
| Vihtavuori N560 | <<locked>> | 94% | 46,876 psi | 83% | 2717 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,869 psi | 67% | 2431 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 39,523 psi | 70% | 2510 fps | 96.6% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,309 psi | 45% | 2270 fps | 96.2% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,960 psi | 76% | 2552 fps | 95.7% |
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 67 powders for 6.5 x 57 loaded with the .264 | 139gr | Norma FMJ Elektron. Alliant Reloder-26 delivers the highest muzzle velocity at 2,835 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,835 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 67 of the 67 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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 | 139gr | Norma FMJ Elektron 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.