Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 121gr | SUS-TAC LRT 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 2700 | <<locked>> | 82% | 54,462 psi | 87% | 2907 fps | 98.6% |
| Accurate 3100 | <<locked>> | 98% | 53,243 psi | 85% | 2956 fps | 99.5% |
| Accurate 4064 | <<locked>> | 82% | 54,056 psi | 87% | 2894 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,042 psi | 88% | 3005 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 55,463 psi | 89% | 3097 fps | 96% |
| ADI AR 2208 | <<locked>> | 84% | 54,012 psi | 87% | 2930 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,999 psi | 90% | 3051 fps | 98.2% |
| ADI AR 2213 | <<locked>> | 98% | 53,693 psi | 86% | 3041 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,810 psi | 88% | 2949 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,158 psi | 88% | 2976 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,825 psi | 90% | 3064 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,200 psi | 85% | 3025 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,347 psi | 89% | 3035 fps | 98.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 52,939 psi | 85% | 3038 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 53,635 psi | 86% | 3028 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,369 psi | 74% | 2949 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 96% | 53,708 psi | 86% | 3110 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,837 psi | 83% | 3018 fps | 97.5% |
| Bofors RP3 | <<locked>> | 84% | 55,956 psi | 90% | 2969 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 52,939 psi | 85% | 3038 fps | 97.9% |
| Bofors RP7 | <<locked>> | 88% | 55,071 psi | 88% | 2953 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 84% | 56,115 psi | 90% | 2986 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 53,534 psi | 86% | 3002 fps | 99% |
| Hodgdon H4350 | <<locked>> | 86% | 53,098 psi | 85% | 2956 fps | 98% |
| Hodgdon H4831 | <<locked>> | 96% | 53,838 psi | 86% | 2986 fps | 95.9% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,405 psi | 90% | 3028 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,260 psi | 90% | 2986 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,310 psi | 73% | 2979 fps | 96.8% |
| Hodgdon Superformance | <<locked>> | 88% | 53,548 psi | 86% | 3031 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,579 psi | 59% | 1873 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,548 psi | 86% | 2910 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,753 psi | 89% | 2943 fps | 99.2% |
| IMR 4350 | <<locked>> | 92% | 56,231 psi | 90% | 2989 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,287 psi | 85% | 2927 fps | 98.9% |
| IMR 4831 | <<locked>> | 92% | 55,390 psi | 89% | 2995 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,332 psi | 89% | 2976 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,853 psi | 88% | 3074 fps | 97% |
| Lovex S062 | <<locked>> | 82% | 53,824 psi | 86% | 2904 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,403 psi | 86% | 2923 fps | 99.6% |
| Lovex S070 | <<locked>> | 90% | 54,694 psi | 88% | 2963 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,369 psi | 76% | 2858 fps | 98.8% |
| Norma 203B | <<locked>> | 82% | 54,447 psi | 87% | 2959 fps | 100% |
| Norma 204 | <<locked>> | 90% | 53,316 psi | 85% | 2979 fps | 97.6% |
| Norma MRP | <<locked>> | 98% | 56,173 psi | 90% | 3123 fps | 99.4% |
| Norma URP | <<locked>> | 90% | 53,577 psi | 86% | 2989 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,245 psi | 89% | 2986 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 55,535 psi | 89% | 3097 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 92% | 56,101 psi | 90% | 3045 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,719 psi | 80% | 2963 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,318 psi | 60% | 1916 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,970 psi | 90% | 2969 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 52,692 psi | 84% | 3022 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,926 psi | 88% | 3028 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,258 psi | 85% | 3051 fps | 99.9% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,672 psi | 73% | 2979 fps | 98% |
| Rottweil R 902 | <<locked>> | 82% | 55,738 psi | 89% | 2920 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,796 psi | 89% | 2963 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,128 psi | 87% | 2963 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 96% | 54,737 psi | 88% | 3025 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 55,071 psi | 88% | 2953 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,403 psi | 86% | 2923 fps | 99.6% |
| Shooters World Precision | <<locked>> | 82% | 53,824 psi | 86% | 2904 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,694 psi | 88% | 2963 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,809 psi | 86% | 2969 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,301 psi | 85% | 2802 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,127 psi | 85% | 2877 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,273 psi | 87% | 3018 fps | 98.1% |
| Somchem S355 | <<locked>> | 86% | 55,796 psi | 89% | 2959 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,767 psi | 89% | 2953 fps | 96.3% |
| Somchem S365 | <<locked>> | 92% | 53,272 psi | 85% | 2992 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,303 psi | 89% | 2999 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 56,144 psi | 90% | 2874 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,086 psi | 90% | 2887 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 53,476 psi | 86% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,695 psi | 89% | 2986 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,563 psi | 87% | 2969 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 54,404 psi | 87% | 2884 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,042 psi | 88% | 2989 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,173 psi | 90% | 3054 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,333 psi | 90% | 3114 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,419 psi | 89% | 2949 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,534 psi | 86% | 3002 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,037 psi | 79% | 3094 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,593 psi | 89% | 2995 fps | 98.1% |
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% | 51,024 psi | 82% | 2848 fps | 98% |
| Accurate 3100 | <<locked>> | 86% | 35,331 psi | 57% | 2605 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 50,908 psi | 82% | 2848 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,044 psi | 63% | 2710 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 96% | 51,445 psi | 82% | 3028 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 47,616 psi | 76% | 2818 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 88% | 43,105 psi | 69% | 2805 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 96% | 50,140 psi | 80% | 2976 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,283 psi | 77% | 2844 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,634 psi | 83% | 2917 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,855 psi | 61% | 2717 fps | 98.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,134 psi | 69% | 2851 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,873 psi | 69% | 2802 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 92% | 43,308 psi | 69% | 2854 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,876 psi | 45% | 2461 fps | 96.1% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,620 psi | 54% | 2641 fps | 95.4% |
| Alliant Reloder-26 | 51.2 gr | 82% | 31,937 psi | 51% | 2635 fps | 95.5% |
| Bofors RP15 | <<locked>> | 94% | 42,438 psi | 68% | 2831 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 48,907 psi | 78% | 2858 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 43,308 psi | 69% | 2854 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 42,728 psi | 69% | 2723 fps | 96.3% |
| Hodgdon H380 | <<locked>> | 80% | 49,124 psi | 79% | 2867 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 40,915 psi | 66% | 2756 fps | 96.4% |
| Hodgdon H4350 | <<locked>> | 80% | 43,772 psi | 70% | 2779 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 94% | 50,270 psi | 81% | 2923 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,605 psi | 84% | 2963 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,447 psi | 57% | 2608 fps | 98.9% |
| Hodgdon Retumbo | <<locked>> | 98% | 42,641 psi | 68% | 2917 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 40,016 psi | 64% | 2766 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,383 psi | 44% | 1677 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,096 psi | 80% | 2854 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,533 psi | 84% | 2887 fps | 98.8% |
| IMR 4350 | <<locked>> | 80% | 38,566 psi | 62% | 2651 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,092 psi | 71% | 2753 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 37,449 psi | 60% | 2657 fps | 98% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,851 psi | 83% | 2917 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 96% | 47,790 psi | 77% | 2943 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 50,386 psi | 81% | 2851 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,785 psi | 67% | 2707 fps | 97.9% |
| Lovex S070 | <<locked>> | 80% | 40,045 psi | 64% | 2684 fps | 96.3% |
| Lovex S071 | <<locked>> | 90% | 34,301 psi | 55% | 2579 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 50,981 psi | 82% | 2904 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,482 psi | 70% | 2795 fps | 95.1% |
| Norma MRP | 53.4 gr | 88% | 39,653 psi | 64% | 2802 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 38,740 psi | 62% | 2703 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 80% | 51,459 psi | 83% | 2927 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,776 psi | 77% | 2953 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 37,507 psi | 60% | 2687 fps | 96.2% |
| Ramshot Magnum | <<locked>> | 94% | 39,813 psi | 64% | 2759 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,905 psi | 45% | 1716 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,139 psi | 79% | 2854 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,818 psi | 73% | 2907 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,783 psi | 62% | 2723 fps | 98% |
| ReloadSwiss RS 70 | 49.5 gr | 80% | 37,478 psi | 60% | 2730 fps | 97.4% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 39,610 psi | 64% | 2835 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 52,214 psi | 84% | 2864 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,050 psi | 74% | 2805 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,616 psi | 76% | 2848 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 88% | 41,959 psi | 67% | 2782 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 42,728 psi | 69% | 2723 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,785 psi | 67% | 2707 fps | 97.9% |
| Shooters World Precision | <<locked>> | 80% | 50,386 psi | 81% | 2851 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,045 psi | 64% | 2684 fps | 96.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,152 psi | 76% | 2858 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,123 psi | 76% | 2707 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,901 psi | 66% | 2648 fps | 96.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 44,309 psi | 71% | 2835 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 46,253 psi | 74% | 2802 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 52,301 psi | 84% | 2897 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 35,317 psi | 57% | 2661 fps | 99.7% |
| Somchem S385 | <<locked>> | 86% | 39,755 psi | 64% | 2703 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 52,750 psi | 85% | 2828 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,794 psi | 85% | 2841 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,164 psi | 71% | 2726 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,132 psi | 64% | 2703 fps | 98.5% |
| Vihtavuori N165 | <<locked>> | 92% | 41,974 psi | 67% | 2743 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 51,010 psi | 82% | 2835 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,566 psi | 63% | 2700 fps | 98.2% |
| Vihtavuori N555 | <<locked>> | 80% | 30,864 psi | 49% | 2539 fps | 96.3% |
| Vihtavuori N560 | <<locked>> | 94% | 49,153 psi | 79% | 2982 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,131 psi | 63% | 2667 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 41,133 psi | 66% | 2759 fps | 96.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 26,295 psi | 42% | 2490 fps | 95.9% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,933 psi | 72% | 2808 fps | 95.8% |
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 90 powders for 6.5 x 64 (Reb) loaded with the .264 | 121gr | SUS-TAC LRT. Norma MRP delivers the highest muzzle velocity at 3,123 fps; across all powders the maximum-charge window runs from 1,873 fps to 3,123 fps. ADI AR 2217 gives the best case fill at 100 %, and 90 of the 90 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 121.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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 | 121gr | SUS-TAC LRT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.