Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 120gr | Barnes TAC-TX BT bullet and 84 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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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 55,767 psi | 89% | 2890 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 53,621 psi | 86% | 2910 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,666 psi | 89% | 3012 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 56,144 psi | 90% | 2946 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,099 psi | 87% | 3009 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 53,388 psi | 86% | 2936 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,332 psi | 89% | 3058 fps | 98.1% |
| ADI AR 2213 | <<locked>> | 98% | 52,953 psi | 85% | 3045 fps | 96.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 53,969 psi | 87% | 2956 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,041 psi | 87% | 2976 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,969 psi | 88% | 3071 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,376 psi | 90% | 3094 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,679 psi | 88% | 3041 fps | 98% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,811 psi | 89% | 3104 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,779 psi | 85% | 3031 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,527 psi | 73% | 2949 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,620 psi | 84% | 3110 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,966 psi | 82% | 3018 fps | 97.3% |
| Bofors RP3 | <<locked>> | 84% | 54,868 psi | 88% | 2972 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,811 psi | 89% | 3104 fps | 98.4% |
| Bofors RP7 | <<locked>> | 88% | 54,172 psi | 87% | 2956 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 84% | 55,187 psi | 88% | 2989 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 90% | 56,231 psi | 90% | 3064 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 55,825 psi | 90% | 3018 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,651 psi | 89% | 3031 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,317 psi | 89% | 2989 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,715 psi | 72% | 2982 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 88% | 52,808 psi | 85% | 3035 fps | 98.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,318 psi | 58% | 1883 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,202 psi | 90% | 2972 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,085 psi | 88% | 2949 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 55,347 psi | 89% | 2992 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,101 psi | 90% | 2992 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 54,607 psi | 88% | 3002 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,448 psi | 89% | 3005 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,708 psi | 88% | 2979 fps | 96.3% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,056 psi | 87% | 3077 fps | 96.8% |
| Lovex S062 | <<locked>> | 84% | 56,289 psi | 90% | 2963 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,970 psi | 90% | 2982 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 53,954 psi | 87% | 2969 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,992 psi | 74% | 2848 fps | 98.5% |
| Norma 203B | <<locked>> | 82% | 53,345 psi | 86% | 2959 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,405 psi | 90% | 3048 fps | 98.1% |
| Norma MRP | <<locked>> | 98% | 55,550 psi | 89% | 3130 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 56,333 psi | 90% | 3048 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,360 psi | 87% | 2989 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,636 psi | 88% | 3100 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 92% | 55,376 psi | 89% | 3048 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,675 psi | 78% | 2959 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,999 psi | 59% | 1926 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,085 psi | 88% | 2972 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,912 psi | 90% | 3087 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,070 psi | 87% | 3031 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 52,518 psi | 84% | 3054 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,643 psi | 72% | 2972 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 54,563 psi | 87% | 2920 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,708 psi | 88% | 2966 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,214 psi | 85% | 2966 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 96% | 53,940 psi | 86% | 3028 fps | 98% |
| Rottweil R 907 | <<locked>> | 88% | 54,172 psi | 87% | 2956 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,970 psi | 90% | 2982 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 56,289 psi | 90% | 2963 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,954 psi | 87% | 2969 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 52,997 psi | 85% | 2972 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,709 psi | 89% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,767 psi | 89% | 2936 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,476 psi | 86% | 3025 fps | 97.9% |
| Somchem S355 | <<locked>> | 86% | 54,839 psi | 88% | 2963 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,969 psi | 88% | 2959 fps | 96.2% |
| Somchem S365 | <<locked>> | 94% | 56,043 psi | 90% | 3051 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,375 psi | 87% | 3002 fps | 98.7% |
| Vihtavuori N135 | <<locked>> | 82% | 55,042 psi | 88% | 2877 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,317 psi | 89% | 2894 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,231 psi | 90% | 2940 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,085 psi | 88% | 2992 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,693 psi | 86% | 2976 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 82% | 53,592 psi | 86% | 2890 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,012 psi | 87% | 2992 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 54,853 psi | 88% | 3054 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,738 psi | 89% | 3120 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,723 psi | 88% | 2956 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,910 psi | 85% | 3005 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,327 psi | 77% | 3094 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,708 psi | 88% | 2999 fps | 97.9% |
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% | 52,040 psi | 83% | 2838 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,212 psi | 81% | 2851 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 34,127 psi | 55% | 2592 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 49,356 psi | 79% | 2844 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,942 psi | 61% | 2703 fps | 98.1% |
| ADI AR 2208 | <<locked>> | 80% | 47,021 psi | 75% | 2825 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 45,281 psi | 73% | 2871 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 49,414 psi | 79% | 2976 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,485 psi | 76% | 2848 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,865 psi | 82% | 2923 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,941 psi | 59% | 2713 fps | 98.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,293 psi | 68% | 2851 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 44,933 psi | 72% | 2861 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,264 psi | 68% | 2848 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,847 psi | 43% | 2444 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,925 psi | 56% | 2697 fps | 96% |
| Alliant Reloder-26 | 51.9 gr | 82% | 31,053 psi | 50% | 2625 fps | 95% |
| Bofors RP15 | <<locked>> | 96% | 44,628 psi | 72% | 2897 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 47,834 psi | 77% | 2858 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,264 psi | 68% | 2848 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 41,945 psi | 67% | 2723 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 80% | 48,225 psi | 77% | 2871 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 40,059 psi | 64% | 2753 fps | 96.1% |
| Hodgdon H4350 | <<locked>> | 80% | 43,062 psi | 69% | 2782 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,924 psi | 83% | 2969 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,418 psi | 55% | 2602 fps | 98.6% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,742 psi | 67% | 2910 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 39,088 psi | 63% | 2762 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,209 psi | 44% | 1686 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,443 psi | 79% | 2861 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,634 psi | 83% | 2890 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 40,234 psi | 65% | 2703 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,497 psi | 70% | 2759 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 36,535 psi | 59% | 2654 fps | 97.8% |
| IMR 4895 | <<locked>> | 80% | 52,199 psi | 84% | 2953 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,256 psi | 82% | 2923 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 98% | 50,401 psi | 81% | 3012 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 49,588 psi | 80% | 2858 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,727 psi | 65% | 2700 fps | 97.6% |
| Lovex S070 | <<locked>> | 80% | 39,131 psi | 63% | 2684 fps | 96% |
| Lovex S071 | <<locked>> | 92% | 35,360 psi | 57% | 2621 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 50,183 psi | 80% | 2907 fps | 100% |
| Norma 204 | <<locked>> | 86% | 45,687 psi | 73% | 2854 fps | 95.8% |
| Norma MRP | 54 gr | 88% | 38,624 psi | 62% | 2792 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 37,884 psi | 61% | 2700 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 80% | 50,604 psi | 81% | 2930 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,934 psi | 75% | 2956 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 36,666 psi | 59% | 2680 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 96% | 41,785 psi | 67% | 2822 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,673 psi | 44% | 1726 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,341 psi | 78% | 2854 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,976 psi | 72% | 2907 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,782 psi | 61% | 2717 fps | 97.7% |
| ReloadSwiss RS 70 | 50.1 gr | 80% | 36,622 psi | 59% | 2723 fps | 97% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,624 psi | 62% | 2825 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 51,343 psi | 82% | 2871 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,063 psi | 72% | 2802 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,760 psi | 75% | 2848 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 43,743 psi | 70% | 2838 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 41,945 psi | 67% | 2723 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,727 psi | 65% | 2700 fps | 97.6% |
| Shooters World Precision | <<locked>> | 80% | 49,588 psi | 80% | 2858 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,131 psi | 63% | 2684 fps | 96% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,354 psi | 74% | 2858 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,253 psi | 74% | 2710 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,045 psi | 64% | 2648 fps | 96.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,352 psi | 70% | 2831 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 45,136 psi | 72% | 2799 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,488 psi | 83% | 2900 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 34,200 psi | 55% | 2648 fps | 99.5% |
| Somchem S385 | <<locked>> | 88% | 41,481 psi | 67% | 2759 fps | 95.9% |
| Vihtavuori N135 | <<locked>> | 80% | 51,663 psi | 83% | 2831 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,083 psi | 84% | 2848 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,352 psi | 70% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,305 psi | 63% | 2700 fps | 98.3% |
| Vihtavuori N165 | <<locked>> | 92% | 40,973 psi | 66% | 2736 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 50,212 psi | 81% | 2838 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,682 psi | 62% | 2697 fps | 97.9% |
| Vihtavuori N555 | <<locked>> | 80% | 29,646 psi | 48% | 2523 fps | 95.6% |
| Vihtavuori N560 | <<locked>> | 96% | 51,750 psi | 83% | 3048 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,319 psi | 61% | 2667 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 40,059 psi | 64% | 2753 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 84% | 27,093 psi | 43% | 2536 fps | 96.5% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,179 psi | 71% | 2808 fps | 95.5% |
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 84 powders for 6.5 x 64 (Reb) loaded with the .264 | 120gr | Barnes TAC-TX BT. Norma MRP delivers the highest muzzle velocity at 3,130 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,130 fps. Accurate 3100 gives the best case fill at 100 %, and 84 of the 84 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 120.0 gr projectile in 0.264" calls for a 1:9.0 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, ReloadSwiss RS 70 rank at the top here: for 6.5 x 64 (Reb) with the .264 | 120gr | Barnes TAC-TX BT 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.