Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 140gr | Speer Impact bullet and 82 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 MAGPRO and Accurate High Country.
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>> | 98% | 55,622 psi | 89% | 2779 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 56,391 psi | 90% | 2700 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 53,824 psi | 86% | 2766 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 52,953 psi | 85% | 2858 fps | 97.9% |
| Accurate MAGPRO | <<locked>> | 96% | 53,998 psi | 87% | 2861 fps | 96.8% |
| ADI AR 2208 | <<locked>> | 84% | 55,898 psi | 90% | 2733 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,737 psi | 88% | 2815 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 98% | 55,985 psi | 90% | 2867 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,653 psi | 62% | 2598 fps | 97.1% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 54,665 psi | 88% | 2808 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,447 psi | 86% | 2707 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,549 psi | 87% | 2818 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 55,854 psi | 90% | 2838 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 53,954 psi | 87% | 2799 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,376 psi | 89% | 2864 fps | 99.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 56,086 psi | 90% | 2838 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,588 psi | 78% | 2785 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 52,272 psi | 84% | 2867 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,230 psi | 87% | 2844 fps | 98.8% |
| Bofors RP3 | <<locked>> | 82% | 54,273 psi | 87% | 2720 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,469 psi | 71% | 2710 fps | 96.3% |
| Bofors RP5 | <<locked>> | 98% | 55,376 psi | 89% | 2864 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 53,751 psi | 86% | 2717 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,964 psi | 77% | 2726 fps | 97.3% |
| Hodgdon H380 | <<locked>> | 82% | 54,505 psi | 87% | 2740 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,637 psi | 89% | 2815 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 55,143 psi | 88% | 2776 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 96% | 55,927 psi | 90% | 2808 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 96% | 54,911 psi | 88% | 2792 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 54,824 psi | 88% | 2743 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,616 psi | 76% | 2828 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 88% | 56,173 psi | 90% | 2858 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,796 psi | 59% | 1713 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,521 psi | 89% | 2717 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,781 psi | 88% | 2749 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,288 psi | 89% | 2743 fps | 99.6% |
| IMR 4831 | <<locked>> | 90% | 54,360 psi | 87% | 2759 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,041 psi | 87% | 2746 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 98% | 53,359 psi | 86% | 2838 fps | 97.8% |
| Lovex S062 | <<locked>> | 82% | 55,898 psi | 90% | 2710 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,579 psi | 89% | 2740 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 53,563 psi | 86% | 2730 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,400 psi | 79% | 2684 fps | 99.6% |
| Norma 204 | <<locked>> | 90% | 55,680 psi | 89% | 2805 fps | 98.8% |
| Norma MRP | <<locked>> | 96% | 55,129 psi | 88% | 2887 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 55,811 psi | 89% | 2799 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 53,766 psi | 86% | 2858 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 54,882 psi | 88% | 2805 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,996 psi | 83% | 2799 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,420 psi | 60% | 1752 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,215 psi | 87% | 2723 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,390 psi | 89% | 2828 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,795 psi | 86% | 2789 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 55,564 psi | 89% | 2864 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 47,674 psi | 76% | 2828 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 84% | 54,476 psi | 87% | 2720 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 56,072 psi | 90% | 2782 fps | 98.1% |
| Rottweil R 905 | <<locked>> | 94% | 53,243 psi | 85% | 2785 fps | 98.8% |
| Rottweil R 907 | <<locked>> | 86% | 53,751 psi | 86% | 2717 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,579 psi | 89% | 2740 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 55,898 psi | 90% | 2710 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 53,563 psi | 86% | 2730 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,985 psi | 90% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,172 psi | 88% | 2605 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,940 psi | 88% | 2694 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 52,808 psi | 85% | 2782 fps | 98.7% |
| Somchem S355 | <<locked>> | 84% | 54,621 psi | 88% | 2720 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,172 psi | 87% | 2723 fps | 97.1% |
| Somchem S365 | <<locked>> | 92% | 55,840 psi | 90% | 2802 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,041 psi | 87% | 2766 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 86% | 55,579 psi | 89% | 2690 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,433 psi | 87% | 2743 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,345 psi | 86% | 2743 fps | 99% |
| Vihtavuori N540 | <<locked>> | 82% | 56,304 psi | 90% | 2687 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 53,447 psi | 86% | 2746 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 54,998 psi | 88% | 2815 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,172 psi | 88% | 2877 fps | 97.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,546 psi | 81% | 2789 fps | 97% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 53,780 psi | 86% | 2707 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,999 psi | 90% | 2822 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,141 psi | 84% | 2913 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,911 psi | 86% | 2759 fps | 98.7% |
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>> | 82% | 32,532 psi | 52% | 2352 fps | 95.9% |
| Accurate 4064 | <<locked>> | 80% | 52,866 psi | 85% | 2654 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,075 psi | 66% | 2549 fps | 99.5% |
| Accurate High Country | 49.6 gr | 88% | 43,221 psi | 69% | 2680 fps | 95.5% |
| Accurate MAGPRO | 52.8 gr | 92% | 46,891 psi | 75% | 2740 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 49,429 psi | 79% | 2635 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,363 psi | 63% | 2533 fps | 95.3% |
| ADI AR 2213 | <<locked>> | 92% | 45,759 psi | 73% | 2690 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 96% | 33,982 psi | 54% | 2477 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 39,523 psi | 63% | 2530 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,401 psi | 81% | 2661 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,653 psi | 64% | 2559 fps | 99.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,223 psi | 73% | 2674 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,131 psi | 63% | 2523 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,581 psi | 63% | 2579 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,153 psi | 47% | 2326 fps | 98.1% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,082 psi | 50% | 2395 fps | 95.8% |
| Alliant Reloder-26 | 46.4 gr | 80% | 31,343 psi | 50% | 2441 fps | 96.8% |
| Bofors RP15 | <<locked>> | 90% | 39,059 psi | 63% | 2566 fps | 95.3% |
| Bofors RP3 | <<locked>> | 80% | 50,778 psi | 81% | 2671 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,582 psi | 67% | 2651 fps | 95.4% |
| Bofors RP5 | <<locked>> | 88% | 39,581 psi | 63% | 2579 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 44,541 psi | 71% | 2559 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 96% | 41,872 psi | 67% | 2605 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 51,053 psi | 82% | 2687 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,757 psi | 69% | 2592 fps | 98% |
| Hodgdon H4350 | <<locked>> | 80% | 45,469 psi | 73% | 2608 fps | 97.4% |
| Hodgdon H4831 | <<locked>> | 90% | 45,716 psi | 73% | 2638 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 92% | 47,964 psi | 77% | 2677 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,246 psi | 60% | 2451 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 94% | 39,088 psi | 63% | 2641 fps | 96% |
| Hodgdon Superformance | <<locked>> | 80% | 41,785 psi | 67% | 2612 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,383 psi | 44% | 1526 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,025 psi | 83% | 2667 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,943 psi | 64% | 2487 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,963 psi | 74% | 2585 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 39,233 psi | 63% | 2500 fps | 99.2% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,599 psi | 72% | 2582 fps | 95% |
| IMR 7828 SSC | <<locked>> | 92% | 43,859 psi | 70% | 2664 fps | 95.3% |
| Lovex S062 | <<locked>> | 80% | 52,417 psi | 84% | 2661 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,308 psi | 69% | 2533 fps | 99% |
| Lovex S070 | <<locked>> | 80% | 41,684 psi | 67% | 2523 fps | 97.9% |
| Lovex S071 | <<locked>> | 86% | 31,720 psi | 51% | 2333 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 39,668 psi | 64% | 2516 fps | 95.3% |
| Norma MRP | <<locked>> | 84% | 36,172 psi | 58% | 2530 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 40,495 psi | 65% | 2539 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 43,569 psi | 70% | 2671 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 39,349 psi | 63% | 2530 fps | 97.9% |
| Ramshot Magnum | <<locked>> | 90% | 36,187 psi | 58% | 2493 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,007 psi | 45% | 1565 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,908 psi | 82% | 2674 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,979 psi | 77% | 2720 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,669 psi | 65% | 2566 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,291 psi | 63% | 2575 fps | 98.9% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 35,882 psi | 58% | 2559 fps | 95.8% |
| Rottweil R 903 | <<locked>> | 80% | 47,964 psi | 77% | 2621 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,656 psi | 70% | 2569 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 84% | 38,406 psi | 62% | 2510 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 44,541 psi | 71% | 2559 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,308 psi | 69% | 2533 fps | 99% |
| Shooters World Precision | <<locked>> | 80% | 52,417 psi | 84% | 2661 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,684 psi | 67% | 2523 fps | 97.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,197 psi | 79% | 2674 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,646 psi | 78% | 2516 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,525 psi | 68% | 2487 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,058 psi | 61% | 2503 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 47,979 psi | 77% | 2618 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,500 psi | 76% | 2612 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 37,043 psi | 59% | 2497 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,448 psi | 58% | 2441 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 45,948 psi | 74% | 2549 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,974 psi | 67% | 2539 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 88% | 38,435 psi | 62% | 2477 fps | 95.8% |
| Vihtavuori N540 | <<locked>> | 80% | 52,852 psi | 85% | 2641 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,292 psi | 66% | 2539 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 32,503 psi | 52% | 2398 fps | 98.1% |
| Vihtavuori N560 | <<locked>> | 90% | 44,875 psi | 72% | 2697 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 96% | 44,193 psi | 71% | 2674 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,944 psi | 66% | 2507 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,018 psi | 69% | 2598 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,846 psi | 41% | 2313 fps | 97.6% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,247 psi | 61% | 2477 fps | 95% |
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 82 powders for 6.5 x 64 Brenneke loaded with the .264 | 140gr | Speer Impact. Winchester StaBALL HD delivers the highest muzzle velocity at 2,913 fps; across all powders the maximum-charge window runs from 1,713 fps to 2,913 fps. ADI AR 2225 gives the best case fill at 100 %, and 82 of the 82 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 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-23, Alliant Reloder-25 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 MAGPRO, Accurate High Country rank at the top here: for 6.5 x 64 Brenneke with the .264 | 140gr | Speer Impact 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.