Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 120gr | Barnes X S bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2700 | <<locked>> | 82% | 55,550 psi | 89% | 2894 fps | 98.4% |
| Accurate 3100 | <<locked>> | 98% | 54,926 psi | 88% | 2956 fps | 99.4% |
| Accurate 4064 | <<locked>> | 82% | 56,420 psi | 90% | 2900 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 53,229 psi | 85% | 2949 fps | 99.9% |
| Accurate High Country | <<locked>> | 96% | 55,216 psi | 89% | 3087 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 54,926 psi | 88% | 2917 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,243 psi | 85% | 2979 fps | 97.3% |
| ADI AR 2213 | <<locked>> | 98% | 54,418 psi | 87% | 3025 fps | 96.2% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 53,490 psi | 86% | 2976 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,101 psi | 90% | 2946 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,101 psi | 90% | 2963 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,434 psi | 90% | 3051 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,998 psi | 87% | 3018 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,173 psi | 90% | 3022 fps | 97.9% |
| Alliant Reloder-22 | <<locked>> | 98% | 53,751 psi | 86% | 3028 fps | 97.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,346 psi | 87% | 3018 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,543 psi | 76% | 2946 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,491 psi | 87% | 3104 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,707 psi | 85% | 3009 fps | 97.3% |
| Bofors RP3 | <<locked>> | 82% | 53,853 psi | 86% | 2913 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 53,751 psi | 86% | 3028 fps | 97.7% |
| Bofors RP7 | <<locked>> | 88% | 56,260 psi | 90% | 2943 fps | 98.6% |
| Hodgdon H380 | <<locked>> | 82% | 53,795 psi | 86% | 2920 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 88% | 54,520 psi | 87% | 2992 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 86% | 54,027 psi | 87% | 2946 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,737 psi | 86% | 2927 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,528 psi | 75% | 2972 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 88% | 54,157 psi | 87% | 3018 fps | 98.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,782 psi | 59% | 1854 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,462 psi | 87% | 2900 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,563 psi | 86% | 2917 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,114 psi | 87% | 2910 fps | 98.7% |
| IMR 4831 | <<locked>> | 90% | 53,388 psi | 86% | 2940 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,101 psi | 90% | 2959 fps | 96.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,303 psi | 89% | 3054 fps | 96.5% |
| Lovex S062 | <<locked>> | 82% | 55,187 psi | 88% | 2900 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,795 psi | 88% | 2917 fps | 99.6% |
| Lovex S070 | <<locked>> | 90% | 56,275 psi | 90% | 2963 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,313 psi | 79% | 2861 fps | 98.8% |
| Norma 203B | <<locked>> | 82% | 55,492 psi | 89% | 2949 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,302 psi | 87% | 2969 fps | 97.4% |
| Norma MRP | <<locked>> | 96% | 53,272 psi | 85% | 3054 fps | 98.7% |
| Norma URP | <<locked>> | 90% | 54,911 psi | 88% | 2986 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,956 psi | 90% | 2972 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,260 psi | 90% | 3081 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 90% | 53,563 psi | 86% | 2979 fps | 99.3% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,502 psi | 81% | 2949 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,652 psi | 60% | 1900 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,577 psi | 86% | 2900 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,708 psi | 86% | 3015 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 56,101 psi | 90% | 3022 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,085 psi | 87% | 3041 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,818 psi | 75% | 2972 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 84% | 54,273 psi | 87% | 2913 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,795 psi | 88% | 2946 fps | 96.5% |
| Rottweil R 905 | <<locked>> | 96% | 55,695 psi | 89% | 3012 fps | 98% |
| Rottweil R 907 | <<locked>> | 88% | 56,260 psi | 90% | 2943 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,795 psi | 88% | 2917 fps | 99.6% |
| Shooters World Precision | <<locked>> | 82% | 55,187 psi | 88% | 2900 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 56,275 psi | 90% | 2963 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,868 psi | 88% | 2963 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,244 psi | 87% | 2789 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 54,375 psi | 87% | 2867 fps | 98.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,201 psi | 89% | 3009 fps | 97.9% |
| Somchem S355 | <<locked>> | 84% | 53,766 psi | 86% | 2904 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 54,462 psi | 87% | 2989 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 53,011 psi | 85% | 2933 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 86% | 54,955 psi | 88% | 2877 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,316 psi | 85% | 2920 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,448 psi | 89% | 2959 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 82% | 55,477 psi | 89% | 2874 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 56,014 psi | 90% | 2982 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 96% | 53,925 psi | 86% | 2999 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,927 psi | 90% | 2933 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,520 psi | 87% | 2992 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,516 psi | 79% | 3087 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 56,101 psi | 90% | 2976 fps | 97.8% |
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% | 52,388 psi | 84% | 2841 fps | 97.9% |
| Accurate 3100 | <<locked>> | 84% | 35,375 psi | 57% | 2575 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 53,461 psi | 86% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 41,133 psi | 66% | 2723 fps | 98.5% |
| Accurate High Country | <<locked>> | 92% | 48,414 psi | 78% | 2963 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 48,747 psi | 78% | 2812 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 46,847 psi | 75% | 2858 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 51,140 psi | 82% | 2963 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 44,367 psi | 71% | 2802 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,835 psi | 80% | 2844 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,866 psi | 85% | 2910 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,247 psi | 63% | 2723 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,280 psi | 71% | 2848 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 88% | 43,932 psi | 70% | 2795 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 92% | 44,440 psi | 71% | 2851 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,820 psi | 48% | 2490 fps | 96.7% |
| Alliant Reloder-25 | <<locked>> | 90% | 35,215 psi | 56% | 2657 fps | 95.6% |
| Alliant Reloder-26 | 49.3 gr | 82% | 33,939 psi | 54% | 2664 fps | 96% |
| Bofors RP15 | <<locked>> | 94% | 43,918 psi | 70% | 2838 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 50,691 psi | 81% | 2861 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 44,440 psi | 71% | 2851 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 44,353 psi | 71% | 2723 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 80% | 50,676 psi | 81% | 2867 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 42,380 psi | 68% | 2759 fps | 96.4% |
| Hodgdon H4350 | <<locked>> | 80% | 44,918 psi | 72% | 2772 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,057 psi | 59% | 2618 fps | 99% |
| Hodgdon Retumbo | <<locked>> | 98% | 43,874 psi | 70% | 2910 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 41,292 psi | 66% | 2769 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,775 psi | 45% | 1663 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,300 psi | 82% | 2848 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 42,264 psi | 68% | 2703 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,382 psi | 73% | 2749 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 39,204 psi | 63% | 2671 fps | 98.2% |
| IMR 4955 Enduron | <<locked>> | 94% | 52,852 psi | 85% | 2904 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 98% | 51,953 psi | 83% | 2995 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 52,011 psi | 83% | 2848 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,584 psi | 70% | 2710 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 41,742 psi | 67% | 2690 fps | 96.4% |
| Lovex S071 | <<locked>> | 90% | 36,593 psi | 59% | 2605 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 52,257 psi | 84% | 2897 fps | 100% |
| Norma 204 | <<locked>> | 84% | 44,686 psi | 72% | 2789 fps | 95% |
| Norma MRP | 51.3 gr | 88% | 40,973 psi | 66% | 2805 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 40,219 psi | 64% | 2707 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 52,446 psi | 84% | 2917 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 48,849 psi | 78% | 2943 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 39,044 psi | 63% | 2694 fps | 96.3% |
| Ramshot Magnum | <<locked>> | 96% | 43,918 psi | 70% | 2822 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,384 psi | 46% | 1703 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 50,299 psi | 81% | 2844 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,818 psi | 75% | 2900 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 40,567 psi | 65% | 2736 fps | 98.2% |
| ReloadSwiss RS 70 | 47.6 gr | 80% | 38,870 psi | 62% | 2733 fps | 97.4% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 41,089 psi | 66% | 2838 fps | 95.7% |
| Rottweil R 903 | <<locked>> | 80% | 47,834 psi | 77% | 2805 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 48,515 psi | 78% | 2835 fps | 95% |
| Rottweil R 905 | <<locked>> | 88% | 43,178 psi | 69% | 2782 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 44,353 psi | 71% | 2723 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,584 psi | 70% | 2710 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 52,011 psi | 83% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,742 psi | 67% | 2690 fps | 96.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,428 psi | 78% | 2854 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,225 psi | 77% | 2700 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,511 psi | 68% | 2648 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 45,527 psi | 73% | 2831 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 47,964 psi | 77% | 2805 fps | 100% |
| Somchem S365 | <<locked>> | 80% | 36,985 psi | 59% | 2671 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 41,510 psi | 67% | 2713 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 80% | 45,571 psi | 73% | 2726 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,539 psi | 67% | 2703 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 43,149 psi | 69% | 2740 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 52,330 psi | 84% | 2828 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,220 psi | 66% | 2710 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 32,938 psi | 53% | 2569 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,437 psi | 65% | 2667 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 42,380 psi | 68% | 2759 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,716 psi | 43% | 2467 fps | 95.6% |
| Winchester Supreme 780 | <<locked>> | 92% | 46,079 psi | 74% | 2802 fps | 95.6% |
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 77 powders for 6.5 x 64 Brenneke loaded with the .264 | 120gr | Barnes X S. Alliant Reloder-26 delivers the highest muzzle velocity at 3,104 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,104 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 77 of the 77 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 120.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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. Norma MRP, Alliant Reloder-26, ReloadSwiss RS 70 rank at the top here: for 6.5 x 64 Brenneke with the .264 | 120gr | Barnes X 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.