Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 129gr | Hornady Interbond bullet and 88 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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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 2700 | <<locked>> | 82% | 53,940 psi | 86% | 2785 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,622 psi | 89% | 2884 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 53,534 psi | 86% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,143 psi | 87% | 2881 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 54,012 psi | 87% | 2966 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 84% | 53,403 psi | 86% | 2805 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,085 psi | 88% | 2923 fps | 98.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,246 psi | 90% | 2972 fps | 97.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,420 psi | 90% | 2979 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 55,259 psi | 89% | 2923 fps | 98.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 55,259 psi | 89% | 2923 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,259 psi | 87% | 2828 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,201 psi | 87% | 2848 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,940 psi | 88% | 2940 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,362 psi | 90% | 2963 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,505 psi | 87% | 2913 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,303 psi | 89% | 2969 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,489 psi | 84% | 2904 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,382 psi | 73% | 2825 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,344 psi | 84% | 2982 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,908 psi | 82% | 2894 fps | 97.6% |
| Bofors RP3 | <<locked>> | 84% | 54,940 psi | 88% | 2841 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,303 psi | 89% | 2969 fps | 98.5% |
| Bofors RP7 | <<locked>> | 88% | 54,288 psi | 87% | 2828 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 84% | 55,245 psi | 89% | 2858 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,304 psi | 90% | 2933 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 88% | 55,796 psi | 89% | 2890 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 96% | 52,895 psi | 85% | 2861 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,230 psi | 89% | 2897 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,201 psi | 89% | 2861 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,425 psi | 71% | 2854 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 88% | 52,489 psi | 84% | 2907 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,405 psi | 58% | 1781 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,231 psi | 90% | 2838 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,274 psi | 89% | 2822 fps | 99.3% |
| IMR 4350 | <<locked>> | 92% | 55,317 psi | 89% | 2864 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,854 psi | 90% | 2858 fps | 99.3% |
| IMR 4831 | <<locked>> | 92% | 54,694 psi | 88% | 2874 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,622 psi | 89% | 2874 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,534 psi | 87% | 2851 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,824 psi | 86% | 2949 fps | 97% |
| Lovex S062 | <<locked>> | 82% | 52,997 psi | 85% | 2782 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,014 psi | 90% | 2854 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 54,157 psi | 87% | 2844 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,412 psi | 74% | 2740 fps | 98.8% |
| Norma 203B | <<locked>> | 82% | 53,563 psi | 86% | 2831 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,115 psi | 90% | 2917 fps | 98.2% |
| Norma MRP | <<locked>> | 98% | 55,158 psi | 88% | 2999 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 56,217 psi | 90% | 2917 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,476 psi | 87% | 2861 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,070 psi | 87% | 2963 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 55,143 psi | 88% | 2917 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,559 psi | 78% | 2838 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,217 psi | 60% | 1824 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,274 psi | 89% | 2848 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,593 psi | 89% | 2949 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 53,838 psi | 86% | 2900 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,333 psi | 90% | 2989 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,570 psi | 71% | 2854 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 82% | 54,853 psi | 88% | 2792 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,129 psi | 88% | 2841 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,374 psi | 86% | 2841 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 96% | 53,780 psi | 86% | 2900 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 54,288 psi | 87% | 2828 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,014 psi | 90% | 2854 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 52,997 psi | 85% | 2782 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,157 psi | 87% | 2844 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,011 psi | 85% | 2844 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,043 psi | 90% | 2726 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,782 psi | 89% | 2805 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,316 psi | 85% | 2894 fps | 98.1% |
| Somchem S355 | <<locked>> | 86% | 55,056 psi | 88% | 2838 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,795 psi | 88% | 2831 fps | 96.3% |
| Somchem S365 | <<locked>> | 94% | 55,883 psi | 90% | 2920 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,244 psi | 87% | 2874 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 55,347 psi | 89% | 2753 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,666 psi | 89% | 2769 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,376 psi | 90% | 2812 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,911 psi | 88% | 2861 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 2848 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 82% | 53,708 psi | 86% | 2762 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,128 psi | 87% | 2867 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,882 psi | 88% | 2927 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,390 psi | 89% | 2989 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,346 psi | 87% | 2825 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,304 psi | 90% | 2933 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,543 psi | 76% | 2966 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,505 psi | 87% | 2867 fps | 98.1% |
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 2700 | <<locked>> | 80% | 50,328 psi | 81% | 2726 fps | 98% |
| Accurate 3100 | <<locked>> | 86% | 34,621 psi | 56% | 2497 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 50,169 psi | 80% | 2726 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,551 psi | 62% | 2598 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 96% | 50,502 psi | 81% | 2904 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 47,239 psi | 76% | 2703 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 42,525 psi | 68% | 2694 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 49,197 psi | 79% | 2851 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,446 psi | 84% | 2920 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 42,540 psi | 68% | 2690 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 42,540 psi | 68% | 2690 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,674 psi | 76% | 2723 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,155 psi | 82% | 2799 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,275 psi | 60% | 2605 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,409 psi | 68% | 2730 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,061 psi | 67% | 2684 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,293 psi | 68% | 2733 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,441 psi | 44% | 2359 fps | 96.3% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,040 psi | 53% | 2533 fps | 95.5% |
| Alliant Reloder-26 | 48 gr | 82% | 31,430 psi | 50% | 2530 fps | 95.7% |
| Bofors RP15 | <<locked>> | 94% | 41,727 psi | 67% | 2720 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 48,138 psi | 77% | 2736 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,293 psi | 68% | 2733 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 42,453 psi | 68% | 2615 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 48,530 psi | 78% | 2749 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 40,364 psi | 65% | 2641 fps | 96.5% |
| Hodgdon H4350 | <<locked>> | 80% | 43,149 psi | 69% | 2661 fps | 95.9% |
| Hodgdon H4831 | <<locked>> | 94% | 49,458 psi | 79% | 2802 fps | 95.1% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,634 psi | 83% | 2838 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,809 psi | 56% | 2497 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,655 psi | 67% | 2792 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 39,305 psi | 63% | 2651 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 44% | 1594 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,705 psi | 80% | 2736 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,924 psi | 83% | 2766 fps | 98.9% |
| IMR 4350 | <<locked>> | 80% | 37,913 psi | 61% | 2536 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,627 psi | 70% | 2638 fps | 97.2% |
| IMR 4831 | <<locked>> | 80% | 36,985 psi | 59% | 2552 fps | 98.2% |
| IMR 4895 | <<locked>> | 80% | 52,446 psi | 84% | 2825 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,184 psi | 82% | 2795 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 96% | 47,065 psi | 75% | 2825 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 50,009 psi | 80% | 2733 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,263 psi | 66% | 2592 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 39,537 psi | 63% | 2572 fps | 96.5% |
| Lovex S071 | <<locked>> | 90% | 33,591 psi | 54% | 2470 fps | 95.3% |
| Norma 203B | <<locked>> | 80% | 50,517 psi | 81% | 2785 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,801 psi | 69% | 2677 fps | 95.2% |
| Norma MRP | 50 gr | 88% | 38,899 psi | 62% | 2687 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 38,189 psi | 61% | 2592 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 80% | 50,807 psi | 81% | 2805 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,007 psi | 75% | 2835 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 37,057 psi | 59% | 2575 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 94% | 38,928 psi | 62% | 2644 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,920 psi | 45% | 1634 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,443 psi | 78% | 2733 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,078 psi | 72% | 2785 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,087 psi | 61% | 2612 fps | 98.1% |
| ReloadSwiss RS 70 | 46.4 gr | 80% | 37,014 psi | 59% | 2621 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,580 psi | 62% | 2713 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 51,750 psi | 83% | 2746 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,469 psi | 73% | 2687 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,818 psi | 75% | 2726 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 41,046 psi | 66% | 2664 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,453 psi | 68% | 2615 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,263 psi | 66% | 2592 fps | 98% |
| Shooters World Precision | <<locked>> | 80% | 50,009 psi | 80% | 2733 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,537 psi | 63% | 2572 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,615 psi | 75% | 2740 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,572 psi | 75% | 2592 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,277 psi | 65% | 2533 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,511 psi | 70% | 2717 fps | 95.9% |
| Somchem S355 | <<locked>> | 80% | 45,614 psi | 73% | 2684 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,445 psi | 82% | 2776 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 34,592 psi | 55% | 2546 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 39,117 psi | 63% | 2592 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 80% | 52,098 psi | 84% | 2707 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,214 psi | 84% | 2720 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,656 psi | 70% | 2615 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,682 psi | 64% | 2592 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 41,205 psi | 66% | 2628 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 50,430 psi | 81% | 2713 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,015 psi | 63% | 2592 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 30,327 psi | 49% | 2438 fps | 96.4% |
| Vihtavuori N560 | <<locked>> | 94% | 48,196 psi | 77% | 2861 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,725 psi | 62% | 2562 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 40,364 psi | 65% | 2641 fps | 96.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,889 psi | 42% | 2388 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,034 psi | 71% | 2690 fps | 95.8% |
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 88 powders for 6.5 x 64 Brenneke loaded with the .264 | 129gr | Hornady Interbond. Norma MRP delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,781 fps to 2,999 fps. Accurate 3100 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 129.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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 64 Brenneke with the .264 | 129gr | Hornady Interbond 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.