Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 139gr | Fox Classic Hunter bullet and 89 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 Vihtavuori N560.
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 2495 | <<locked>> | 82% | 56,188 psi | 90% | 2661 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 54,070 psi | 87% | 2690 fps | 99% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,840 psi | 90% | 2789 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 53,258 psi | 85% | 2671 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,099 psi | 87% | 2779 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 54,447 psi | 87% | 2874 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 53,403 psi | 86% | 2703 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,332 psi | 89% | 2831 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 52,997 psi | 85% | 2825 fps | 97.3% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 55,550 psi | 89% | 2825 fps | 98.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,230 psi | 87% | 2723 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,462 psi | 87% | 2746 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,259 psi | 89% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 52,620 psi | 84% | 2802 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,795 psi | 88% | 2818 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,521 psi | 89% | 2874 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,576 psi | 84% | 2802 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,585 psi | 73% | 2736 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,721 psi | 85% | 2887 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,952 psi | 82% | 2799 fps | 98.1% |
| Bofors RP3 | <<locked>> | 84% | 54,882 psi | 88% | 2740 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,521 psi | 89% | 2874 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 54,447 psi | 87% | 2733 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,223 psi | 73% | 2677 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 84% | 55,332 psi | 89% | 2759 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,333 psi | 90% | 2831 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 88% | 56,275 psi | 90% | 2799 fps | 99% |
| Hodgdon H4831 | <<locked>> | 96% | 52,910 psi | 85% | 2766 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,695 psi | 89% | 2808 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,492 psi | 89% | 2759 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,715 psi | 72% | 2776 fps | 97.7% |
| Hodgdon Superformance | <<locked>> | 88% | 52,895 psi | 85% | 2812 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,332 psi | 58% | 1703 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,217 psi | 90% | 2733 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,317 psi | 89% | 2720 fps | 99.6% |
| IMR 4350 | <<locked>> | 92% | 55,579 psi | 89% | 2769 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,159 psi | 90% | 2759 fps | 99.6% |
| IMR 4831 | <<locked>> | 92% | 54,520 psi | 87% | 2769 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,912 psi | 90% | 2772 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,708 psi | 88% | 2759 fps | 97.2% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,998 psi | 87% | 2854 fps | 97.6% |
| Lovex S062 | <<locked>> | 84% | 56,333 psi | 90% | 2723 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,260 psi | 90% | 2756 fps | 100% |
| Lovex S070 | <<locked>> | 90% | 54,114 psi | 87% | 2746 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,122 psi | 74% | 2641 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 53,751 psi | 86% | 2733 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,347 psi | 90% | 2818 fps | 98.7% |
| Norma MRP | <<locked>> | 98% | 55,506 psi | 89% | 2900 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 53,055 psi | 85% | 2766 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,534 psi | 87% | 2759 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,491 psi | 87% | 2871 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 92% | 55,288 psi | 89% | 2818 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,573 psi | 78% | 2746 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,159 psi | 60% | 1749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,245 psi | 89% | 2746 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,970 psi | 90% | 2844 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,230 psi | 87% | 2805 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,420 psi | 90% | 2887 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,570 psi | 71% | 2769 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 82% | 54,752 psi | 88% | 2687 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,100 psi | 88% | 2736 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,359 psi | 86% | 2743 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 96% | 53,969 psi | 87% | 2805 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 88% | 54,447 psi | 87% | 2733 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,260 psi | 90% | 2756 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 56,333 psi | 90% | 2723 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,114 psi | 87% | 2746 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,301 psi | 85% | 2746 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,970 psi | 90% | 2621 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,738 psi | 89% | 2710 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,505 psi | 86% | 2799 fps | 98.6% |
| Somchem S355 | <<locked>> | 86% | 55,027 psi | 88% | 2733 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,839 psi | 88% | 2736 fps | 97% |
| Somchem S365 | <<locked>> | 94% | 56,028 psi | 90% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,375 psi | 87% | 2779 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 82% | 55,288 psi | 89% | 2644 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,608 psi | 89% | 2664 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,289 psi | 90% | 2707 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,056 psi | 88% | 2762 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,882 psi | 86% | 2756 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 82% | 53,708 psi | 86% | 2661 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 53,998 psi | 87% | 2762 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,984 psi | 88% | 2825 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,709 psi | 89% | 2894 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 47,224 psi | 76% | 2740 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,621 psi | 88% | 2726 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,968 psi | 85% | 2782 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,138 psi | 77% | 2867 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,636 psi | 88% | 2776 fps | 98.6% |
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 2495 | <<locked>> | 80% | 52,402 psi | 84% | 2612 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,604 psi | 81% | 2638 fps | 98.6% |
| Accurate 3100 | <<locked>> | 84% | 31,894 psi | 51% | 2349 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 49,734 psi | 80% | 2621 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,058 psi | 61% | 2500 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 96% | 50,720 psi | 81% | 2815 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 47,239 psi | 76% | 2605 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 39,813 psi | 64% | 2546 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 94% | 46,050 psi | 74% | 2700 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 39,842 psi | 64% | 2546 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,630 psi | 76% | 2625 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,923 psi | 82% | 2694 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,202 psi | 60% | 2513 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,482 psi | 68% | 2635 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 39,421 psi | 63% | 2536 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,566 psi | 63% | 2585 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,079 psi | 43% | 2274 fps | 96.9% |
| Alliant Reloder-25 | <<locked>> | 88% | 30,835 psi | 49% | 2395 fps | 95.3% |
| Alliant Reloder-26 | 45.3 gr | 80% | 28,950 psi | 46% | 2379 fps | 95.3% |
| Bofors RP15 | <<locked>> | 92% | 39,030 psi | 63% | 2572 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 48,095 psi | 77% | 2638 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 39,566 psi | 63% | 2585 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 42,322 psi | 68% | 2523 fps | 97.1% |
| Hodgdon H1000 | <<locked>> | 98% | 42,163 psi | 68% | 2615 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 48,617 psi | 78% | 2654 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 40,205 psi | 64% | 2549 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 80% | 43,294 psi | 69% | 2572 fps | 96.7% |
| Hodgdon H4831 | <<locked>> | 92% | 46,267 psi | 74% | 2651 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 94% | 48,370 psi | 78% | 2690 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,882 psi | 56% | 2411 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 96% | 38,986 psi | 63% | 2641 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 39,189 psi | 63% | 2562 fps | 96.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,224 psi | 44% | 1522 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,705 psi | 80% | 2638 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,779 psi | 83% | 2667 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 37,869 psi | 61% | 2451 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,627 psi | 70% | 2546 fps | 97.8% |
| IMR 4831 | <<locked>> | 80% | 36,796 psi | 59% | 2461 fps | 98.6% |
| IMR 4895 | <<locked>> | 80% | 52,257 psi | 84% | 2720 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,211 psi | 77% | 2651 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 94% | 43,990 psi | 71% | 2674 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 49,879 psi | 80% | 2631 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,031 psi | 66% | 2497 fps | 98.4% |
| Lovex S070 | <<locked>> | 80% | 39,349 psi | 63% | 2484 fps | 97.1% |
| Lovex S071 | <<locked>> | 88% | 31,067 psi | 50% | 2329 fps | 95% |
| Norma 203B | <<locked>> | 80% | 50,241 psi | 81% | 2680 fps | 100% |
| Norma 204 | <<locked>> | 82% | 40,045 psi | 64% | 2533 fps | 95.1% |
| Norma MRP | 47.3 gr | 86% | 36,230 psi | 58% | 2539 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 38,101 psi | 61% | 2500 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 80% | 50,966 psi | 82% | 2707 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 43,743 psi | 70% | 2680 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 36,898 psi | 59% | 2487 fps | 97% |
| Ramshot Magnum | <<locked>> | 94% | 38,943 psi | 62% | 2562 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,775 psi | 45% | 1562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,370 psi | 78% | 2635 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,165 psi | 72% | 2684 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,189 psi | 61% | 2523 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,912 psi | 59% | 2530 fps | 98.1% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 35,940 psi | 58% | 2566 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 51,503 psi | 83% | 2641 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,266 psi | 73% | 2589 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 44,019 psi | 71% | 2582 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 86% | 38,566 psi | 62% | 2523 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,322 psi | 68% | 2523 fps | 97.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,031 psi | 66% | 2497 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 49,879 psi | 80% | 2631 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,349 psi | 63% | 2484 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,557 psi | 75% | 2641 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,412 psi | 74% | 2490 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,103 psi | 64% | 2444 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,785 psi | 65% | 2572 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 45,455 psi | 73% | 2585 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,080 psi | 77% | 2628 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 34,476 psi | 55% | 2454 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 36,448 psi | 58% | 2448 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 51,880 psi | 83% | 2602 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,286 psi | 84% | 2621 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,555 psi | 70% | 2516 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,392 psi | 63% | 2497 fps | 99% |
| Vihtavuori N165 | <<locked>> | 90% | 38,464 psi | 62% | 2487 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 50,560 psi | 81% | 2615 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,986 psi | 63% | 2503 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 29,965 psi | 48% | 2346 fps | 97% |
| Vihtavuori N560 | 50.6 gr | 92% | 45,208 psi | 72% | 2710 fps | 95% |
| Vihtavuori N565 | <<locked>> | 98% | 44,019 psi | 71% | 2680 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,464 psi | 62% | 2467 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 40,451 psi | 65% | 2556 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,786 psi | 38% | 2241 fps | 95.5% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,205 psi | 66% | 2546 fps | 95.7% |
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 89 powders for 6.5 x 64 Brenneke loaded with the .264 | 139gr | Fox Classic Hunter. Norma MRP delivers the highest muzzle velocity at 2,900 fps; across all powders the maximum-charge window runs from 1,703 fps to 2,900 fps. Accurate 3100 gives the best case fill at 100 %, and 89 of the 89 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 139.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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, Vihtavuori N560 rank at the top here: for 6.5 x 64 Brenneke with the .264 | 139gr | Fox Classic Hunter 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.