Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 139gr | Norma FMJ Elektron bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Accurate High Country 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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 52,939 psi | 85% | 2753 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 54,752 psi | 88% | 2792 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 54,288 psi | 87% | 2894 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 96% | 54,853 psi | 88% | 2890 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 53,345 psi | 86% | 2710 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,419 psi | 89% | 2838 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 53,156 psi | 85% | 2838 fps | 97.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,262 psi | 63% | 2625 fps | 97.4% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 55,666 psi | 89% | 2838 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,447 psi | 87% | 2733 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,463 psi | 89% | 2844 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,084 psi | 85% | 2812 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,940 psi | 88% | 2828 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,333 psi | 90% | 2890 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,447 psi | 86% | 2815 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,385 psi | 79% | 2812 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,606 psi | 86% | 2900 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,143 psi | 88% | 2874 fps | 99% |
| Bofors RP3 | <<locked>> | 82% | 55,245 psi | 89% | 2749 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,310 psi | 73% | 2740 fps | 96.6% |
| Bofors RP5 | <<locked>> | 98% | 56,333 psi | 90% | 2890 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 54,317 psi | 87% | 2740 fps | 99.4% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,965 psi | 79% | 2759 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 55,419 psi | 89% | 2766 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 52,953 psi | 85% | 2789 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 55,956 psi | 90% | 2802 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 94% | 53,214 psi | 85% | 2782 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,840 psi | 90% | 2822 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,014 psi | 90% | 2772 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,399 psi | 78% | 2861 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 86% | 53,156 psi | 85% | 2825 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,883 psi | 59% | 1729 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,202 psi | 90% | 2743 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,477 psi | 89% | 2776 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,782 psi | 89% | 2762 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 55,201 psi | 89% | 2785 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,621 psi | 88% | 2769 fps | 97.5% |
| IMR 7828 SSC | <<locked>> | 98% | 54,273 psi | 87% | 2867 fps | 98% |
| Lovex S065 | <<locked>> | 88% | 56,101 psi | 90% | 2762 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,360 psi | 87% | 2759 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,401 psi | 81% | 2713 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 56,376 psi | 90% | 2828 fps | 98.9% |
| Norma MRP | <<locked>> | 96% | 56,072 psi | 90% | 2913 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 53,447 psi | 86% | 2779 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,969 psi | 88% | 2890 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 55,593 psi | 89% | 2831 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 53,069 psi | 85% | 2828 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,492 psi | 60% | 1768 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,071 psi | 88% | 2753 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,347 psi | 90% | 2851 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,578 psi | 88% | 2815 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,982 psi | 85% | 2841 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,588 psi | 78% | 2858 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 84% | 55,448 psi | 89% | 2746 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,505 psi | 86% | 2759 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 94% | 54,317 psi | 87% | 2818 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 54,317 psi | 87% | 2740 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,101 psi | 90% | 2762 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,360 psi | 87% | 2759 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,388 psi | 86% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,840 psi | 90% | 2628 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,651 psi | 89% | 2720 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,867 psi | 86% | 2812 fps | 98.9% |
| Somchem S355 | <<locked>> | 84% | 55,216 psi | 89% | 2740 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,955 psi | 88% | 2749 fps | 97.3% |
| Somchem S365 | <<locked>> | 90% | 53,084 psi | 85% | 2779 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,027 psi | 88% | 2795 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 84% | 52,997 psi | 85% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,259 psi | 89% | 2769 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,259 psi | 87% | 2772 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 88% | 54,534 psi | 87% | 2779 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,101 psi | 90% | 2844 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 56,115 psi | 90% | 2907 fps | 97.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,706 psi | 83% | 2822 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,694 psi | 88% | 2733 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,243 psi | 85% | 2792 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,679 psi | 86% | 2943 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,824 psi | 88% | 2785 fps | 98.8% |
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>> | 80% | 30,908 psi | 50% | 2323 fps | 95.2% |
| Accurate 4350 | <<locked>> | 80% | 41,742 psi | 67% | 2575 fps | 99.6% |
| Accurate High Country | 50.6 gr | 88% | 43,947 psi | 70% | 2707 fps | 95.8% |
| Accurate MAGPRO | <<locked>> | 92% | 47,790 psi | 77% | 2769 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 50,111 psi | 80% | 2661 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,900 psi | 64% | 2556 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 90% | 43,395 psi | 70% | 2654 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 96% | 34,635 psi | 56% | 2507 fps | 95.4% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 40,248 psi | 65% | 2559 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,097 psi | 82% | 2684 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,074 psi | 64% | 2579 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,861 psi | 74% | 2697 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,842 psi | 64% | 2552 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 86% | 37,710 psi | 60% | 2546 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,675 psi | 48% | 2349 fps | 98.3% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,488 psi | 50% | 2415 fps | 96% |
| Alliant Reloder-26 | 47.4 gr | 80% | 32,010 psi | 51% | 2467 fps | 97.1% |
| Bofors RP15 | <<locked>> | 90% | 39,987 psi | 64% | 2595 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 51,793 psi | 83% | 2697 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,366 psi | 68% | 2680 fps | 95.7% |
| Bofors RP5 | <<locked>> | 86% | 37,710 psi | 60% | 2546 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 45,150 psi | 72% | 2582 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 42,583 psi | 68% | 2635 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 51,996 psi | 83% | 2713 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,381 psi | 70% | 2618 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 46,296 psi | 74% | 2638 fps | 97.7% |
| Hodgdon H4831 | <<locked>> | 90% | 46,615 psi | 75% | 2667 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,484 psi | 73% | 2648 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,927 psi | 61% | 2477 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,391 psi | 60% | 2608 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 42,554 psi | 68% | 2638 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,644 psi | 44% | 1545 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,750 psi | 85% | 2690 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,741 psi | 65% | 2516 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,543 psi | 75% | 2612 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 39,856 psi | 64% | 2526 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,252 psi | 73% | 2605 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 92% | 44,469 psi | 71% | 2690 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 43,932 psi | 70% | 2559 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 42,264 psi | 68% | 2546 fps | 98.1% |
| Lovex S071 | <<locked>> | 86% | 32,271 psi | 52% | 2356 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 40,205 psi | 64% | 2539 fps | 95.5% |
| Norma MRP | 47.2 gr | 82% | 34,519 psi | 55% | 2497 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 41,147 psi | 66% | 2566 fps | 99.4% |
| Ramshot Grand | <<locked>> | 92% | 44,440 psi | 71% | 2703 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 39,914 psi | 64% | 2556 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 90% | 36,883 psi | 59% | 2523 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,021 psi | 45% | 1578 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,735 psi | 83% | 2700 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,646 psi | 78% | 2743 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,495 psi | 67% | 2592 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,016 psi | 64% | 2605 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 34,258 psi | 55% | 2526 fps | 95% |
| Rottweil R 903 | <<locked>> | 80% | 48,660 psi | 78% | 2648 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,135 psi | 71% | 2592 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 84% | 38,943 psi | 62% | 2536 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 45,150 psi | 72% | 2582 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,932 psi | 70% | 2559 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 80% | 42,264 psi | 68% | 2546 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,835 psi | 80% | 2697 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,342 psi | 79% | 2539 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,091 psi | 69% | 2510 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,595 psi | 62% | 2530 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 48,646 psi | 78% | 2641 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 45,136 psi | 72% | 2585 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 37,971 psi | 61% | 2526 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,188 psi | 60% | 2467 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 46,586 psi | 75% | 2572 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,598 psi | 68% | 2562 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 36,622 psi | 59% | 2451 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 42,105 psi | 68% | 2569 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 33,141 psi | 53% | 2425 fps | 98.3% |
| Vihtavuori N560 | <<locked>> | 90% | 45,788 psi | 73% | 2726 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 96% | 45,063 psi | 72% | 2703 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,423 psi | 66% | 2526 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,627 psi | 70% | 2621 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,281 psi | 42% | 2339 fps | 97.9% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,928 psi | 62% | 2507 fps | 95.3% |
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 78 powders for 6.5 x 64 Brenneke loaded with the .264 | 139gr | Norma FMJ Elektron. Winchester StaBALL HD delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,729 fps to 2,943 fps. ADI AR 2225 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, 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. ADI AR 2225, 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, Accurate High Country, Norma MRP rank at the top here: for 6.5 x 64 Brenneke 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.