Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 115gr | Barnes TAC-TX BT 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, Alliant Reloder-16 and Norma MRP.
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% | 54,302 psi | 87% | 2930 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,912 psi | 90% | 3002 fps | 98.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,766 psi | 86% | 3035 fps | 99.3% |
| Accurate 4064 | <<locked>> | 84% | 54,694 psi | 88% | 2986 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,941 psi | 90% | 3097 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 55,492 psi | 89% | 3189 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 86% | 55,390 psi | 89% | 3025 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,708 psi | 86% | 3081 fps | 97.4% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,071 psi | 88% | 3133 fps | 96.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,810 psi | 88% | 3150 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,780 psi | 86% | 3077 fps | 97.4% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,780 psi | 86% | 3077 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,912 psi | 90% | 3045 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,275 psi | 90% | 3071 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 53,359 psi | 86% | 3100 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,563 psi | 87% | 3127 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 53,026 psi | 85% | 3068 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,925 psi | 86% | 3127 fps | 97.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,908 psi | 82% | 3061 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,019 psi | 71% | 2966 fps | 98.6% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,694 psi | 88% | 3202 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,226 psi | 79% | 3041 fps | 96.5% |
| Bofors RP3 | <<locked>> | 84% | 53,084 psi | 85% | 3002 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,925 psi | 86% | 3127 fps | 97.7% |
| Bofors RP7 | <<locked>> | 88% | 52,881 psi | 85% | 2986 fps | 98.1% |
| Hodgdon H380 | <<locked>> | 84% | 53,737 psi | 86% | 3025 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 90% | 54,621 psi | 88% | 3091 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 88% | 54,389 psi | 87% | 3051 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,606 psi | 86% | 3025 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,129 psi | 88% | 3064 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 55,042 psi | 88% | 3130 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,260 psi | 58% | 1923 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,869 psi | 90% | 3031 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,607 psi | 88% | 3002 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,896 psi | 86% | 2986 fps | 98.7% |
| IMR 4350 | <<locked>> | 92% | 53,911 psi | 86% | 3022 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,505 psi | 87% | 3018 fps | 98.7% |
| IMR 4831 | <<locked>> | 94% | 56,391 psi | 90% | 3087 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,085 psi | 87% | 3041 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 56,231 psi | 90% | 2992 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,665 psi | 88% | 2995 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,607 psi | 88% | 3015 fps | 99.5% |
| Lovex S070 | <<locked>> | 92% | 55,796 psi | 89% | 3054 fps | 99.1% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,411 psi | 71% | 2871 fps | 97.8% |
| Norma 201 | <<locked>> | 82% | 56,130 psi | 90% | 3012 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,564 psi | 89% | 3054 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,781 psi | 88% | 3074 fps | 97.4% |
| Norma MRP | <<locked>> | 98% | 53,534 psi | 86% | 3153 fps | 98.8% |
| Norma URP | <<locked>> | 92% | 54,708 psi | 88% | 3081 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 82% | 52,910 psi | 85% | 3025 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,736 psi | 85% | 3114 fps | 96.3% |
| Ramshot Hunter | <<locked>> | 92% | 53,693 psi | 86% | 3077 fps | 99.3% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,891 psi | 75% | 2976 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,912 psi | 59% | 1969 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,737 psi | 86% | 3005 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,128 psi | 87% | 3123 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 56,043 psi | 90% | 3120 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,824 psi | 88% | 3153 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,033 psi | 69% | 2979 fps | 96.5% |
| Rottweil R 902 | <<locked>> | 82% | 53,345 psi | 86% | 2959 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,258 psi | 85% | 3002 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,361 psi | 89% | 3054 fps | 96.6% |
| Rottweil R 905 | <<locked>> | 98% | 55,680 psi | 89% | 3110 fps | 98% |
| Rottweil R 907 | <<locked>> | 88% | 52,881 psi | 85% | 2986 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,607 psi | 88% | 3015 fps | 99.5% |
| Shooters World Precision | <<locked>> | 84% | 54,665 psi | 88% | 2995 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,796 psi | 89% | 3054 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,042 psi | 88% | 3064 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,086 psi | 90% | 3041 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,476 psi | 87% | 2894 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,085 psi | 87% | 2963 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,187 psi | 88% | 3107 fps | 97.8% |
| Somchem S355 | <<locked>> | 86% | 53,447 psi | 86% | 2999 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 54,143 psi | 87% | 3084 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,420 psi | 90% | 3087 fps | 98.7% |
| Vihtavuori N135 | <<locked>> | 82% | 53,693 psi | 86% | 2920 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,056 psi | 87% | 2936 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,795 psi | 88% | 2976 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,214 psi | 85% | 3018 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,982 psi | 83% | 2999 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 84% | 55,825 psi | 90% | 2982 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,043 psi | 90% | 3081 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 98% | 52,982 psi | 85% | 3081 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 53,113 psi | 85% | 2989 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,897 psi | 88% | 3097 fps | 98.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,948 psi | 74% | 3114 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,144 psi | 90% | 3048 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 52,953 psi | 85% | 3018 fps | 97.2% |
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% | 50,676 psi | 81% | 2877 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,037 psi | 79% | 2881 fps | 97.2% |
| Accurate 3100 | <<locked>> | 88% | 35,404 psi | 57% | 2671 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 48,037 psi | 77% | 2881 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,521 psi | 59% | 2720 fps | 97.2% |
| Accurate High Country | <<locked>> | 94% | 47,892 psi | 77% | 3048 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 45,672 psi | 73% | 2854 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 46,847 psi | 75% | 2953 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 98% | 51,358 psi | 82% | 3064 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,821 psi | 81% | 3081 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 46,963 psi | 75% | 2953 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 46,963 psi | 75% | 2953 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,311 psi | 74% | 2884 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,313 psi | 79% | 2953 fps | 99.9% |
| Alliant Reloder-16 | 46 gr | 80% | 35,897 psi | 58% | 2736 fps | 97.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,741 psi | 65% | 2871 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 46,354 psi | 74% | 2940 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 43,758 psi | 70% | 2930 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 82% | 27,876 psi | 45% | 2520 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 94% | 36,187 psi | 58% | 2776 fps | 96% |
| Alliant Reloder-26 | 54.6 gr | 86% | 34,693 psi | 56% | 2776 fps | 96.2% |
| Bofors RP15 | <<locked>> | 98% | 45,963 psi | 74% | 2976 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 46,296 psi | 74% | 2887 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 43,758 psi | 70% | 2930 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 40,944 psi | 66% | 2753 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 46,992 psi | 75% | 2904 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 38,885 psi | 62% | 2776 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 82% | 44,599 psi | 72% | 2864 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,373 psi | 54% | 2625 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,285 psi | 82% | 3002 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 40,814 psi | 65% | 2851 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,977 psi | 43% | 1716 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,301 psi | 84% | 2972 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,037 psi | 77% | 2890 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,531 psi | 81% | 2923 fps | 98.2% |
| IMR 4350 | <<locked>> | 84% | 41,669 psi | 67% | 2785 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,453 psi | 68% | 2785 fps | 96.2% |
| IMR 4831 | <<locked>> | 80% | 35,201 psi | 56% | 2674 fps | 96.9% |
| IMR 4895 | <<locked>> | 80% | 50,633 psi | 81% | 2986 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,736 psi | 85% | 2936 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,138 psi | 77% | 2887 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,726 psi | 64% | 2726 fps | 96.9% |
| Lovex S070 | <<locked>> | 80% | 37,913 psi | 61% | 2700 fps | 95.1% |
| Lovex S071 | <<locked>> | 94% | 36,463 psi | 58% | 2697 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 52,533 psi | 84% | 2953 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,660 psi | 78% | 2936 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 47,500 psi | 76% | 2943 fps | 95.8% |
| Norma MRP | 55.4 gr | 90% | 39,972 psi | 64% | 2877 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 36,535 psi | 59% | 2720 fps | 97.1% |
| Ramshot Big Game | <<locked>> | 80% | 49,226 psi | 79% | 2963 fps | 99.9% |
| Ramshot Grand | <<locked>> | 98% | 49,023 psi | 79% | 3045 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 82% | 38,087 psi | 61% | 2766 fps | 95.9% |
| Ramshot Magnum | <<locked>> | 98% | 43,627 psi | 70% | 2907 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,398 psi | 44% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,891 psi | 75% | 2881 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,381 psi | 70% | 2933 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,521 psi | 59% | 2740 fps | 96.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 35,549 psi | 57% | 2743 fps | 96.1% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 40,161 psi | 64% | 2907 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 49,908 psi | 80% | 2904 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,555 psi | 70% | 2828 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 51,764 psi | 83% | 2992 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 92% | 45,455 psi | 73% | 2923 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 40,944 psi | 66% | 2753 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,726 psi | 64% | 2726 fps | 96.9% |
| Shooters World Precision | <<locked>> | 80% | 48,138 psi | 77% | 2887 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,913 psi | 61% | 2700 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,063 psi | 72% | 2890 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,562 psi | 84% | 2986 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,223 psi | 73% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,812 psi | 62% | 2667 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 45,034 psi | 72% | 2917 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 43,990 psi | 71% | 2831 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 33,040 psi | 53% | 2674 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 43,047 psi | 69% | 2841 fps | 95.8% |
| Vihtavuori N135 | <<locked>> | 80% | 50,444 psi | 81% | 2871 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,604 psi | 81% | 2884 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 41,989 psi | 67% | 2759 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 37,956 psi | 61% | 2723 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 94% | 42,482 psi | 68% | 2818 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 49,023 psi | 79% | 2877 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,550 psi | 60% | 2723 fps | 97.2% |
| Vihtavuori N555 | <<locked>> | 82% | 30,734 psi | 49% | 2602 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,231 psi | 60% | 2694 fps | 99.2% |
| Winchester 760 | <<locked>> | 80% | 38,885 psi | 62% | 2776 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 86% | 28,007 psi | 45% | 2608 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,562 psi | 84% | 2989 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 45,919 psi | 74% | 2894 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 88 powders for 6.5 x 64 (Reb) loaded with the .264 | 115gr | Barnes TAC-TX BT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,202 fps; across all powders the maximum-charge window runs from 1,923 fps to 3,202 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 115.0 gr projectile in 0.264" calls for a 1:9.0 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, Alliant Reloder-16, Norma MRP rank at the top here: for 6.5 x 64 (Reb) with the .264 | 115gr | 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.