Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 140gr | Barnes XLC S bullet and 75 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.
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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 94% | 53,534 psi | 86% | 2730 fps | 99.9% |
| Accurate 4350 | <<locked>> | 86% | 54,853 psi | 88% | 2762 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 53,664 psi | 86% | 2858 fps | 98% |
| Accurate MAGPRO | <<locked>> | 94% | 54,549 psi | 87% | 2858 fps | 97% |
| ADI AR 2208 | <<locked>> | 82% | 55,550 psi | 89% | 2713 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 54,607 psi | 88% | 2799 fps | 98.8% |
| ADI AR 2213 | <<locked>> | 96% | 55,796 psi | 89% | 2854 fps | 98.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,094 psi | 76% | 2694 fps | 96.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,235 psi | 68% | 2664 fps | 98.3% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 55,042 psi | 88% | 2802 fps | 98.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 54,505 psi | 87% | 2805 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,043 psi | 90% | 2828 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 54,375 psi | 87% | 2792 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,724 psi | 89% | 2858 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 96% | 53,287 psi | 85% | 2785 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,373 psi | 84% | 2835 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 53,229 psi | 85% | 2867 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 54,578 psi | 88% | 2838 fps | 98.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,631 psi | 78% | 2772 fps | 97.4% |
| Bofors RP5 | <<locked>> | 96% | 55,724 psi | 89% | 2858 fps | 99.1% |
| Bofors RP7 | <<locked>> | 84% | 53,925 psi | 86% | 2707 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,517 psi | 83% | 2779 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 86% | 55,811 psi | 89% | 2802 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 55,027 psi | 88% | 2759 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 94% | 55,782 psi | 89% | 2795 fps | 97.5% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,810 psi | 88% | 2782 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,390 psi | 89% | 2736 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,387 psi | 82% | 2890 fps | 99.3% |
| Hodgdon Superformance | <<locked>> | 86% | 55,912 psi | 90% | 2838 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,231 psi | 60% | 1716 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 54,679 psi | 88% | 2736 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,955 psi | 88% | 2723 fps | 99.6% |
| IMR 4831 | <<locked>> | 88% | 54,955 psi | 88% | 2753 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 53,853 psi | 86% | 2730 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 96% | 53,766 psi | 86% | 2835 fps | 97.9% |
| Lovex S065 | <<locked>> | 86% | 55,883 psi | 90% | 2726 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,085 psi | 87% | 2723 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,433 psi | 87% | 2746 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 55,608 psi | 89% | 2792 fps | 98.8% |
| Norma 217ᴾ | <<locked>> | 100% | 38,218 psi | 61% | 2602 fps | 96.5% |
| Norma MRP | <<locked>> | 94% | 55,579 psi | 89% | 2884 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 56,391 psi | 90% | 2792 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 54,273 psi | 87% | 2851 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 88% | 55,114 psi | 88% | 2795 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,101 psi | 90% | 2848 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,218 psi | 61% | 1762 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,187 psi | 88% | 2812 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 54,186 psi | 87% | 2779 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,593 psi | 89% | 2854 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,619 psi | 83% | 2887 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 82% | 55,521 psi | 89% | 2717 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,202 psi | 90% | 2772 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 92% | 53,925 psi | 86% | 2782 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 84% | 53,925 psi | 86% | 2707 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,883 psi | 90% | 2726 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,085 psi | 87% | 2723 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,057 psi | 90% | 2766 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,868 psi | 88% | 2589 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,114 psi | 88% | 2680 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 53,476 psi | 86% | 2779 fps | 98.8% |
| Somchem S355 | <<locked>> | 82% | 55,042 psi | 88% | 2707 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 54,360 psi | 87% | 2713 fps | 97.2% |
| Somchem S365 | <<locked>> | 90% | 56,391 psi | 90% | 2795 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,650 psi | 88% | 2759 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 84% | 55,767 psi | 89% | 2677 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 54,650 psi | 88% | 2733 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 53,679 psi | 86% | 2733 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 86% | 53,940 psi | 86% | 2740 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 56,391 psi | 90% | 2818 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,419 psi | 89% | 2871 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,317 psi | 89% | 2854 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 53,824 psi | 86% | 2697 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,173 psi | 90% | 2808 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 98% | 53,359 psi | 86% | 2917 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 54,041 psi | 87% | 2749 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>> | 80% | 34,693 psi | 56% | 2382 fps | 96.8% |
| Accurate 4350 | <<locked>> | 80% | 45,527 psi | 73% | 2612 fps | 99.9% |
| Accurate High Country | 47.6 gr | 84% | 41,394 psi | 66% | 2628 fps | 95% |
| Accurate MAGPRO | 52 gr | 90% | 47,819 psi | 77% | 2743 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 52,518 psi | 84% | 2671 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 40,074 psi | 64% | 2530 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 88% | 43,323 psi | 69% | 2625 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 98% | 44,193 psi | 71% | 2638 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 94% | 35,375 psi | 57% | 2500 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 40,292 psi | 65% | 2530 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,743 psi | 69% | 2605 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,950 psi | 78% | 2720 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 39,958 psi | 64% | 2526 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,247 psi | 61% | 2530 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,735 psi | 52% | 2398 fps | 99.2% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,647 psi | 49% | 2362 fps | 95.6% |
| Alliant Reloder-26 | 46.7 gr | 80% | 35,288 psi | 57% | 2523 fps | 98.3% |
| Bofors RP15 | <<locked>> | 88% | 40,393 psi | 65% | 2575 fps | 95.8% |
| Bofors RP30 | <<locked>> | 94% | 40,480 psi | 65% | 2612 fps | 95.1% |
| Bofors RP5 | <<locked>> | 84% | 38,247 psi | 61% | 2530 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 47,703 psi | 76% | 2602 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 94% | 42,786 psi | 69% | 2615 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 46,354 psi | 74% | 2648 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 48,704 psi | 78% | 2654 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 88% | 46,137 psi | 74% | 2631 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 88% | 45,295 psi | 73% | 2615 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,625 psi | 65% | 2500 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 37,869 psi | 61% | 2595 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 45,397 psi | 73% | 2664 fps | 98.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,905 psi | 45% | 1532 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,134 psi | 69% | 2536 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,689 psi | 78% | 2621 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 43,149 psi | 69% | 2559 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 45,179 psi | 72% | 2579 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 90% | 44,425 psi | 71% | 2664 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 46,934 psi | 75% | 2582 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 45,382 psi | 73% | 2575 fps | 98.7% |
| Lovex S071 | <<locked>> | 80% | 30,313 psi | 49% | 2270 fps | 95% |
| Norma 204 | <<locked>> | 80% | 43,004 psi | 69% | 2572 fps | 96.4% |
| Norma 217 | <<locked>> | 98% | 35,984 psi | 58% | 2546 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 35,114 psi | 56% | 2484 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 44,193 psi | 71% | 2595 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 41,597 psi | 67% | 2615 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 42,859 psi | 69% | 2585 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 37,289 psi | 60% | 2503 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,616 psi | 46% | 1572 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,706 psi | 83% | 2762 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,686 psi | 72% | 2625 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,757 psi | 69% | 2635 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 34,911 psi | 56% | 2516 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 52,199 psi | 84% | 2667 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 44,121 psi | 71% | 2562 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 82% | 39,508 psi | 63% | 2516 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 47,703 psi | 76% | 2602 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,934 psi | 75% | 2582 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 45,382 psi | 73% | 2575 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,750 psi | 85% | 2717 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,822 psi | 83% | 2546 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,803 psi | 73% | 2530 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 39,146 psi | 63% | 2513 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 51,808 psi | 83% | 2661 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 47,993 psi | 77% | 2608 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 41,017 psi | 66% | 2556 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,898 psi | 61% | 2454 fps | 96.1% |
| Vihtavuori N150 | <<locked>> | 80% | 49,574 psi | 79% | 2589 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,614 psi | 73% | 2589 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 37,130 psi | 60% | 2431 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 45,005 psi | 72% | 2592 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 36,753 psi | 59% | 2474 fps | 99.2% |
| Vihtavuori N560 | <<locked>> | 88% | 45,672 psi | 73% | 2700 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 94% | 45,600 psi | 73% | 2687 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,251 psi | 71% | 2549 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,354 psi | 74% | 2648 fps | 98.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 29,457 psi | 47% | 2418 fps | 99.4% |
| Winchester Supreme 780 | <<locked>> | 84% | 39,233 psi | 63% | 2484 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 75 powders for 6.5 x 64 Brenneke loaded with the .264 | 140gr | Barnes XLC S. Winchester StaBALL HD delivers the highest muzzle velocity at 2,917 fps; across all powders the maximum-charge window runs from 1,716 fps to 2,917 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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 | Barnes XLC S 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.