Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 139gr | Norma HP bullet and 79 powders. The key underlying parameters are shown in the table above.
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>> | 96% | 52,765 psi | 85% | 2749 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 54,607 psi | 88% | 2789 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 54,114 psi | 87% | 2890 fps | 98.1% |
| Accurate MAGPRO | <<locked>> | 96% | 55,085 psi | 88% | 2894 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 53,200 psi | 85% | 2707 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 55,245 psi | 89% | 2835 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 96% | 53,055 psi | 85% | 2838 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 39,160 psi | 63% | 2621 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,273 psi | 87% | 2730 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 55,288 psi | 89% | 2841 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 52,939 psi | 85% | 2808 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,795 psi | 88% | 2828 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 56,202 psi | 90% | 2890 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 53,592 psi | 86% | 2818 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 49,240 psi | 79% | 2808 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 53,505 psi | 86% | 2897 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 55,042 psi | 88% | 2871 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 55,085 psi | 88% | 2746 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 45,165 psi | 72% | 2736 fps | 96.6% |
| Bofors RP5 | <<locked>> | 98% | 56,202 psi | 90% | 2890 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 54,128 psi | 87% | 2736 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,834 psi | 78% | 2759 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 82% | 55,274 psi | 89% | 2762 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 53,069 psi | 85% | 2789 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 86% | 55,825 psi | 90% | 2799 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 94% | 53,055 psi | 85% | 2779 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,680 psi | 89% | 2818 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,854 psi | 90% | 2769 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 48,269 psi | 77% | 2858 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 86% | 53,055 psi | 85% | 2822 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,695 psi | 59% | 1726 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,999 psi | 90% | 2740 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 55,651 psi | 89% | 2779 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,898 psi | 90% | 2766 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 55,042 psi | 88% | 2782 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,462 psi | 87% | 2766 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 98% | 54,433 psi | 87% | 2871 fps | 98% |
| Lovex S062 | <<locked>> | 82% | 56,391 psi | 90% | 2730 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,289 psi | 90% | 2762 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 54,230 psi | 87% | 2756 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,256 psi | 81% | 2713 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 56,260 psi | 90% | 2828 fps | 98.9% |
| Norma MRP | <<locked>> | 96% | 55,898 psi | 90% | 2913 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 53,287 psi | 85% | 2776 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,810 psi | 88% | 2887 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 90% | 55,477 psi | 89% | 2828 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,953 psi | 85% | 2828 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,565 psi | 60% | 1768 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,897 psi | 88% | 2749 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,202 psi | 90% | 2851 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 54,389 psi | 87% | 2812 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 52,808 psi | 85% | 2838 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,472 psi | 78% | 2854 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 84% | 55,274 psi | 89% | 2746 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 53,388 psi | 86% | 2756 fps | 97.7% |
| Rottweil R 905 | <<locked>> | 94% | 54,143 psi | 87% | 2815 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 54,128 psi | 87% | 2736 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,289 psi | 90% | 2762 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,391 psi | 90% | 2730 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,230 psi | 87% | 2756 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 53,258 psi | 85% | 2749 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,637 psi | 89% | 2625 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,506 psi | 89% | 2717 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,679 psi | 86% | 2808 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 55,071 psi | 88% | 2740 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,810 psi | 88% | 2749 fps | 97.3% |
| Somchem S365 | <<locked>> | 90% | 53,214 psi | 85% | 2779 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,853 psi | 88% | 2792 fps | 99.4% |
| Vihtavuori N150 | <<locked>> | 86% | 56,289 psi | 90% | 2713 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,100 psi | 88% | 2769 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 54,099 psi | 87% | 2766 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 88% | 54,404 psi | 87% | 2772 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,970 psi | 90% | 2841 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,956 psi | 90% | 2904 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 51,590 psi | 83% | 2818 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,592 psi | 88% | 2733 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 53,069 psi | 85% | 2789 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 53,505 psi | 86% | 2940 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,665 psi | 88% | 2785 fps | 98.8% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 30,806 psi | 49% | 2320 fps | 95.1% |
| Accurate 4350 | <<locked>> | 80% | 41,597 psi | 67% | 2572 fps | 99.5% |
| Accurate High Country | <<locked>> | 88% | 43,816 psi | 70% | 2703 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 92% | 47,659 psi | 76% | 2766 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 49,951 psi | 80% | 2654 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,987 psi | 64% | 2559 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 90% | 43,526 psi | 70% | 2657 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 96% | 34,519 psi | 55% | 2503 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,908 psi | 82% | 2680 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,147 psi | 64% | 2582 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,963 psi | 74% | 2700 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,711 psi | 64% | 2549 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,379 psi | 65% | 2605 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,733 psi | 48% | 2352 fps | 98.3% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,575 psi | 51% | 2418 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,879 psi | 51% | 2464 fps | 97.1% |
| Bofors RP15 | <<locked>> | 90% | 39,842 psi | 64% | 2592 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 51,605 psi | 83% | 2697 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 42,279 psi | 68% | 2677 fps | 95.7% |
| Bofors RP5 | <<locked>> | 88% | 40,379 psi | 65% | 2605 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 44,991 psi | 72% | 2582 fps | 98% |
| Hodgdon H1000 | <<locked>> | 96% | 42,467 psi | 68% | 2631 fps | 95.7% |
| Hodgdon H380 | <<locked>> | 80% | 51,822 psi | 83% | 2713 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 43,497 psi | 70% | 2621 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 80% | 46,166 psi | 74% | 2635 fps | 97.6% |
| Hodgdon H4831 | <<locked>> | 90% | 46,485 psi | 75% | 2664 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 45,658 psi | 73% | 2651 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,768 psi | 61% | 2474 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 37,260 psi | 60% | 2608 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 42,380 psi | 68% | 2635 fps | 97.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 44% | 1542 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,576 psi | 84% | 2687 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,625 psi | 65% | 2513 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,412 psi | 74% | 2608 fps | 98.6% |
| IMR 4831 | <<locked>> | 80% | 39,740 psi | 64% | 2520 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 45,397 psi | 73% | 2608 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 92% | 44,324 psi | 71% | 2687 fps | 95.5% |
| Lovex S062 | <<locked>> | 80% | 52,953 psi | 85% | 2684 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,048 psi | 71% | 2562 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 42,134 psi | 68% | 2543 fps | 98% |
| Lovex S071 | <<locked>> | 86% | 32,343 psi | 52% | 2359 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 40,306 psi | 65% | 2543 fps | 95.5% |
| Norma MRP | <<locked>> | 82% | 34,403 psi | 55% | 2497 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 41,017 psi | 66% | 2562 fps | 99.4% |
| Ramshot Grand | <<locked>> | 92% | 44,295 psi | 71% | 2700 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 40,001 psi | 64% | 2556 fps | 98.1% |
| Ramshot Magnum | <<locked>> | 90% | 36,796 psi | 59% | 2520 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,065 psi | 45% | 1578 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,590 psi | 83% | 2697 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,776 psi | 78% | 2746 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,365 psi | 66% | 2592 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,900 psi | 64% | 2602 fps | 99.1% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,637 psi | 59% | 2592 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 48,530 psi | 78% | 2644 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,280 psi | 71% | 2595 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 84% | 39,059 psi | 63% | 2536 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 44,991 psi | 72% | 2582 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,048 psi | 71% | 2562 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 52,953 psi | 85% | 2684 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,134 psi | 68% | 2543 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,937 psi | 80% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,197 psi | 79% | 2536 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,946 psi | 69% | 2507 fps | 98.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,711 psi | 62% | 2530 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 48,791 psi | 78% | 2641 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,182 psi | 77% | 2638 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 37,840 psi | 61% | 2523 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,072 psi | 59% | 2464 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 46,412 psi | 74% | 2569 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,453 psi | 68% | 2559 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 36,492 psi | 59% | 2448 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 41,959 psi | 67% | 2562 fps | 99.4% |
| Vihtavuori N555 | <<locked>> | 80% | 33,228 psi | 53% | 2425 fps | 98.3% |
| Vihtavuori N560 | <<locked>> | 90% | 45,658 psi | 73% | 2723 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 96% | 45,179 psi | 72% | 2703 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,539 psi | 67% | 2530 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,497 psi | 70% | 2621 fps | 98.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,339 psi | 42% | 2343 fps | 97.9% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,812 psi | 62% | 2503 fps | 95.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 85 powders for 6.5 x 64 Brenneke loaded with the .264 | 139gr | Norma HP. Winchester StaBALL HD delivers the highest muzzle velocity at 2,940 fps; across all powders the maximum-charge window runs from 1,726 fps to 2,940 fps. ADI AR 2217 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, 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 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. As outliers, IMR 8133 Enduron, Norma 217, ReloadSwiss RS 80 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.