Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 120gr | Impala RNFP KO bullet and 71 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 3100 | <<locked>> | 96% | 54,824 psi | 88% | 2979 fps | 99.6% |
| Accurate 4350 | <<locked>> | 86% | 52,997 psi | 85% | 2969 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 56,159 psi | 90% | 3114 fps | 96.2% |
| ADI AR 2208 | <<locked>> | 82% | 54,070 psi | 87% | 2930 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,130 psi | 90% | 3054 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 96% | 53,954 psi | 87% | 3048 fps | 96.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,872 psi | 66% | 2831 fps | 96.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,317 psi | 89% | 2956 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,246 psi | 90% | 3074 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 53,708 psi | 86% | 3035 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,738 psi | 89% | 3045 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 53,693 psi | 86% | 3054 fps | 98.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,476 psi | 87% | 3041 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,720 psi | 81% | 3031 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,795 psi | 88% | 3127 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,144 psi | 90% | 3091 fps | 98.3% |
| Bofors RP5 | <<locked>> | 96% | 53,693 psi | 86% | 3054 fps | 98.1% |
| Bofors RP7 | <<locked>> | 86% | 55,637 psi | 89% | 2963 fps | 98.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,082 psi | 80% | 2966 fps | 96.6% |
| Hodgdon H414 | <<locked>> | 86% | 54,012 psi | 87% | 3009 fps | 99.1% |
| Hodgdon H4350 | <<locked>> | 84% | 53,534 psi | 86% | 2966 fps | 98.1% |
| Hodgdon H4831 | <<locked>> | 94% | 54,128 psi | 87% | 2992 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,330 psi | 86% | 2943 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,617 psi | 80% | 3074 fps | 98% |
| Hodgdon Superformance | <<locked>> | 86% | 53,882 psi | 86% | 3038 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,970 psi | 59% | 1886 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,127 psi | 85% | 2940 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,287 psi | 85% | 2927 fps | 98.9% |
| IMR 4831 | <<locked>> | 90% | 56,376 psi | 90% | 3009 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,434 psi | 89% | 2979 fps | 96.5% |
| IMR 7828 SSC | <<locked>> | 98% | 55,448 psi | 89% | 3087 fps | 97.1% |
| Lovex S065 | <<locked>> | 86% | 54,288 psi | 87% | 2936 fps | 99.7% |
| Lovex S070 | <<locked>> | 88% | 55,593 psi | 89% | 2979 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,591 psi | 84% | 2943 fps | 99.4% |
| Norma 204 | <<locked>> | 88% | 53,751 psi | 86% | 2989 fps | 97.7% |
| Norma MRP | <<locked>> | 94% | 53,287 psi | 85% | 3077 fps | 99% |
| Norma URP | <<locked>> | 88% | 54,433 psi | 87% | 2999 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,883 psi | 90% | 3107 fps | 97.6% |
| Ramshot Hunter | <<locked>> | 88% | 53,258 psi | 85% | 2999 fps | 99.5% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,317 psi | 87% | 3045 fps | 98.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,811 psi | 61% | 1932 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,173 psi | 90% | 2972 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,200 psi | 85% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,985 psi | 90% | 3041 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 53,824 psi | 86% | 3061 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,038 psi | 80% | 3071 fps | 99% |
| Rottweil R 903 | <<locked>> | 82% | 53,592 psi | 86% | 2927 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,447 psi | 87% | 2969 fps | 96.9% |
| Rottweil R 905 | <<locked>> | 94% | 55,347 psi | 89% | 3035 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 86% | 55,637 psi | 89% | 2963 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,288 psi | 87% | 2936 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 88% | 55,593 psi | 89% | 2979 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,273 psi | 87% | 2976 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,388 psi | 86% | 2802 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,563 psi | 86% | 2881 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,926 psi | 88% | 3031 fps | 98.2% |
| Somchem S355 | <<locked>> | 82% | 53,345 psi | 86% | 2920 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,086 psi | 90% | 2959 fps | 96.4% |
| Somchem S365 | <<locked>> | 90% | 54,433 psi | 87% | 3009 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,173 psi | 90% | 3012 fps | 99% |
| Vihtavuori N150 | <<locked>> | 84% | 54,259 psi | 87% | 2890 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,318 psi | 90% | 2992 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,361 psi | 89% | 2986 fps | 98.6% |
| Vihtavuori N550 | <<locked>> | 88% | 55,622 psi | 89% | 2999 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,027 psi | 87% | 3018 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,316 psi | 85% | 3061 fps | 96.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,330 psi | 86% | 3045 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,405 psi | 89% | 2949 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,331 psi | 87% | 3015 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 54,491 psi | 87% | 3176 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,883 psi | 90% | 2999 fps | 98.2% |
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 3100 | <<locked>> | 82% | 35,331 psi | 57% | 2595 fps | 95.6% |
| Accurate 4350 | <<locked>> | 80% | 43,613 psi | 70% | 2799 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 94% | 52,417 psi | 84% | 3045 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 51,082 psi | 82% | 2881 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 43,758 psi | 70% | 2822 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 94% | 50,604 psi | 81% | 2986 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 98% | 38,493 psi | 62% | 2769 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,344 psi | 84% | 2910 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,263 psi | 66% | 2795 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,123 psi | 76% | 2923 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 43,700 psi | 70% | 2818 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 88% | 41,640 psi | 67% | 2815 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,444 psi | 50% | 2562 fps | 97.9% |
| Alliant Reloder-25 | <<locked>> | 86% | 33,214 psi | 53% | 2625 fps | 95.2% |
| Alliant Reloder-26 | 50.9 gr | 80% | 33,881 psi | 54% | 2684 fps | 96.5% |
| Bofors RP15 | <<locked>> | 92% | 44,005 psi | 71% | 2864 fps | 95.6% |
| Bofors RP5 | <<locked>> | 88% | 41,640 psi | 67% | 2815 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 46,514 psi | 75% | 2795 fps | 97.3% |
| Hodgdon H1000 | <<locked>> | 98% | 46,949 psi | 75% | 2904 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 44,759 psi | 72% | 2835 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 80% | 47,326 psi | 76% | 2851 fps | 96.8% |
| Hodgdon H4831 | <<locked>> | 92% | 50,749 psi | 81% | 2933 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 39,204 psi | 63% | 2687 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 41,176 psi | 66% | 2877 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 43,729 psi | 70% | 2848 fps | 96.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,949 psi | 45% | 1693 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,829 psi | 67% | 2720 fps | 96.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,413 psi | 76% | 2818 fps | 97.9% |
| IMR 4831 | <<locked>> | 80% | 41,466 psi | 66% | 2740 fps | 98.9% |
| IMR 4955 Enduron | <<locked>> | 90% | 49,298 psi | 79% | 2867 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 94% | 48,747 psi | 78% | 2963 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 45,469 psi | 73% | 2776 fps | 98.7% |
| Lovex S070 | <<locked>> | 80% | 43,816 psi | 70% | 2759 fps | 97.4% |
| Lovex S071 | <<locked>> | 86% | 34,592 psi | 55% | 2575 fps | 95.4% |
| Norma 204 | <<locked>> | 82% | 44,222 psi | 71% | 2805 fps | 95.4% |
| Norma MRP | 51.9 gr | 84% | 38,537 psi | 62% | 2769 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 42,482 psi | 68% | 2779 fps | 99% |
| Ramshot Grand | <<locked>> | 94% | 48,878 psi | 78% | 2976 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 41,307 psi | 66% | 2766 fps | 97.4% |
| Ramshot Magnum | <<locked>> | 92% | 41,176 psi | 66% | 2789 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,558 psi | 46% | 1732 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,634 psi | 84% | 2913 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,835 psi | 80% | 2972 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 43,033 psi | 69% | 2812 fps | 99% |
| ReloadSwiss RS 70 | 50.4 gr | 80% | 41,147 psi | 66% | 2815 fps | 98.5% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 38,377 psi | 62% | 2799 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 80% | 50,343 psi | 81% | 2874 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 48,022 psi | 77% | 2854 fps | 95.4% |
| Rottweil R 905 | <<locked>> | 86% | 43,062 psi | 69% | 2805 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 46,514 psi | 75% | 2795 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,469 psi | 73% | 2776 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 80% | 43,816 psi | 70% | 2759 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,981 psi | 82% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,401 psi | 81% | 2756 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,469 psi | 71% | 2717 fps | 97.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 42,685 psi | 68% | 2799 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 50,169 psi | 80% | 2867 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 52,576 psi | 84% | 2904 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 39,392 psi | 63% | 2743 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 38,986 psi | 63% | 2680 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 47,892 psi | 77% | 2789 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,743 psi | 70% | 2772 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 88% | 40,596 psi | 65% | 2710 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 43,526 psi | 70% | 2782 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 35,201 psi | 56% | 2644 fps | 97.9% |
| Vihtavuori N560 | <<locked>> | 92% | 50,024 psi | 80% | 2999 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 98% | 50,024 psi | 80% | 2982 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,627 psi | 68% | 2736 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,759 psi | 72% | 2835 fps | 97.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,282 psi | 45% | 2556 fps | 97.5% |
| Winchester Supreme 780 | <<locked>> | 88% | 43,062 psi | 69% | 2769 fps | 95.3% |
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 71 powders for 6.5 x 64 (Reb) loaded with the .264 | 120gr | Impala RNFP KO. Winchester StaBALL HD delivers the highest muzzle velocity at 3,176 fps; across all powders the maximum-charge window runs from 1,886 fps to 3,176 fps. ADI AR 2225 gives the best case fill at 100 %, and 71 of the 71 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 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2225, 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 (Reb) with the .264 | 120gr | Impala RNFP KO 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.