Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 125gr | Hasler ARIETE bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and Alliant Reloder-26.
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% | 55,608 psi | 89% | 2881 fps | 98.9% |
| Accurate 3100 | <<locked>> | 98% | 54,534 psi | 87% | 2933 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 55,274 psi | 89% | 2867 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 56,188 psi | 90% | 2979 fps | 100% |
| ADI AR 2208 | <<locked>> | 84% | 54,781 psi | 88% | 2894 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 53,316 psi | 85% | 2963 fps | 98% |
| ADI AR 2213 | <<locked>> | 98% | 54,868 psi | 88% | 3022 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,999 psi | 90% | 2923 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,014 psi | 90% | 2943 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 53,447 psi | 86% | 2982 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,346 psi | 87% | 2999 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 52,852 psi | 85% | 2953 fps | 98% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,157 psi | 87% | 3018 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,926 psi | 88% | 2999 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 47,456 psi | 76% | 2930 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 55,245 psi | 89% | 3091 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,069 psi | 85% | 2995 fps | 98.1% |
| Bofors RP3 | <<locked>> | 82% | 53,214 psi | 85% | 2884 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 54,157 psi | 87% | 3018 fps | 98.4% |
| Bofors RP7 | <<locked>> | 88% | 55,912 psi | 90% | 2923 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 47,050 psi | 75% | 2867 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 82% | 53,388 psi | 86% | 2897 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 54,563 psi | 87% | 2976 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 86% | 54,244 psi | 87% | 2933 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 96% | 55,013 psi | 88% | 2966 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 53,737 psi | 86% | 2943 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 53,577 psi | 86% | 2904 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 46,412 psi | 74% | 2966 fps | 97.5% |
| Hodgdon Superformance | <<locked>> | 88% | 54,795 psi | 88% | 3009 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,695 psi | 59% | 1844 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,317 psi | 87% | 2877 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 53,606 psi | 86% | 2904 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,085 psi | 87% | 2897 fps | 99.2% |
| IMR 4831 | <<locked>> | 90% | 53,127 psi | 85% | 2917 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 56,333 psi | 90% | 2949 fps | 97% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 56,101 psi | 90% | 3054 fps | 97.6% |
| Lovex S062 | <<locked>> | 82% | 54,636 psi | 88% | 2871 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 54,549 psi | 87% | 2900 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 55,956 psi | 90% | 2943 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 48,486 psi | 78% | 2835 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 55,317 psi | 89% | 2927 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,360 psi | 87% | 2956 fps | 98% |
| Norma MRP | <<locked>> | 96% | 53,679 psi | 86% | 3041 fps | 99.3% |
| Norma URP | <<locked>> | 90% | 54,940 psi | 88% | 2963 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 56,231 psi | 90% | 2953 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 52,620 psi | 84% | 3005 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 90% | 53,548 psi | 86% | 2959 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,720 psi | 81% | 2940 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,463 psi | 60% | 1886 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 53,272 psi | 85% | 2884 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 53,838 psi | 86% | 2989 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 56,144 psi | 90% | 2999 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,447 psi | 87% | 3028 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,601 psi | 75% | 2963 fps | 98.6% |
| Rottweil R 903 | <<locked>> | 84% | 53,359 psi | 86% | 2881 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 55,129 psi | 88% | 2936 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 96% | 55,898 psi | 90% | 3002 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 55,912 psi | 90% | 2923 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 54,549 psi | 87% | 2900 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 54,636 psi | 88% | 2871 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,956 psi | 90% | 2943 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,795 psi | 88% | 2940 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,070 psi | 87% | 2766 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 53,969 psi | 87% | 2848 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 55,434 psi | 89% | 2995 fps | 98.5% |
| Somchem S355 | <<locked>> | 84% | 53,388 psi | 86% | 2877 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 53,287 psi | 85% | 2874 fps | 96.1% |
| Somchem S365 | <<locked>> | 92% | 54,534 psi | 87% | 2966 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 56,434 psi | 90% | 2972 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 54,636 psi | 88% | 2854 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 53,345 psi | 86% | 2904 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,782 psi | 89% | 2949 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 82% | 55,230 psi | 89% | 2848 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 56,086 psi | 90% | 2959 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 53,708 psi | 86% | 2972 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 53,824 psi | 86% | 3028 fps | 96.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 49,574 psi | 79% | 2936 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 52,605 psi | 84% | 2864 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,911 psi | 88% | 2979 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,720 psi | 81% | 3068 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 52,924 psi | 85% | 2910 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 2700 | <<locked>> | 80% | 52,083 psi | 84% | 2825 fps | 98.4% |
| Accurate 3100 | <<locked>> | 84% | 33,881 psi | 54% | 2533 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 51,735 psi | 83% | 2815 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,827 psi | 64% | 2687 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 48,530 psi | 78% | 2792 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 43,888 psi | 70% | 2785 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 94% | 47,776 psi | 77% | 2890 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 49,298 psi | 79% | 2815 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 52,460 psi | 84% | 2887 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,522 psi | 62% | 2694 fps | 98.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 44,034 psi | 71% | 2825 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 43,700 psi | 70% | 2779 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 90% | 41,350 psi | 66% | 2772 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,413 psi | 46% | 2441 fps | 96.8% |
| Alliant Reloder-25 | <<locked>> | 88% | 32,285 psi | 52% | 2569 fps | 95.2% |
| Alliant Reloder-26 | 49.7 gr | 80% | 30,516 psi | 49% | 2556 fps | 95.2% |
| Bofors RP15 | <<locked>> | 94% | 43,410 psi | 70% | 2815 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 49,705 psi | 80% | 2828 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 41,350 psi | 66% | 2772 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 43,627 psi | 70% | 2700 fps | 96.9% |
| Hodgdon H1000 | <<locked>> | 98% | 43,888 psi | 70% | 2802 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 50,212 psi | 81% | 2844 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 41,887 psi | 67% | 2736 fps | 97% |
| Hodgdon H4350 | <<locked>> | 80% | 44,512 psi | 71% | 2756 fps | 96.4% |
| Hodgdon H4831 | <<locked>> | 94% | 51,329 psi | 82% | 2904 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 50,111 psi | 80% | 2881 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 36,129 psi | 58% | 2585 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,785 psi | 65% | 2835 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 40,828 psi | 65% | 2746 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 44% | 1647 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,068 psi | 82% | 2828 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 39,204 psi | 63% | 2625 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,005 psi | 72% | 2733 fps | 97.7% |
| IMR 4831 | <<locked>> | 80% | 38,174 psi | 61% | 2635 fps | 98.5% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,705 psi | 80% | 2835 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 96% | 48,776 psi | 78% | 2923 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 51,387 psi | 82% | 2822 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 42,424 psi | 68% | 2677 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 40,712 psi | 65% | 2657 fps | 96.9% |
| Lovex S071 | <<locked>> | 88% | 32,909 psi | 53% | 2507 fps | 95% |
| Norma 203B | <<locked>> | 80% | 51,793 psi | 83% | 2871 fps | 100% |
| Norma 204 | <<locked>> | 84% | 44,295 psi | 71% | 2772 fps | 95.8% |
| Norma MRP | 51.9 gr | 86% | 37,869 psi | 61% | 2723 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 39,465 psi | 63% | 2677 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 80% | 52,620 psi | 84% | 2900 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 45,556 psi | 73% | 2871 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 38,479 psi | 62% | 2667 fps | 96.9% |
| Ramshot Magnum | <<locked>> | 94% | 40,770 psi | 65% | 2746 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 45% | 1686 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,937 psi | 80% | 2825 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,731 psi | 75% | 2877 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,827 psi | 64% | 2707 fps | 98.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 38,450 psi | 62% | 2717 fps | 98% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,753 psi | 61% | 2749 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 46,833 psi | 75% | 2776 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 45,585 psi | 73% | 2766 fps | 95% |
| Rottweil R 905 | <<locked>> | 88% | 42,844 psi | 69% | 2762 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 43,627 psi | 70% | 2700 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 42,424 psi | 68% | 2677 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 51,387 psi | 82% | 2822 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,712 psi | 65% | 2657 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 48,225 psi | 77% | 2831 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,718 psi | 77% | 2674 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,510 psi | 67% | 2621 fps | 97% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 42,453 psi | 68% | 2756 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 46,978 psi | 75% | 2769 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 49,705 psi | 80% | 2812 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 36,114 psi | 58% | 2638 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 38,159 psi | 61% | 2628 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 80% | 44,875 psi | 72% | 2697 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,828 psi | 65% | 2677 fps | 98.9% |
| Vihtavuori N165 | <<locked>> | 90% | 40,045 psi | 64% | 2664 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 52,054 psi | 83% | 2805 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 40,509 psi | 65% | 2684 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 80% | 31,560 psi | 51% | 2523 fps | 96.9% |
| Vihtavuori N560 | 56.7 gr | 94% | 50,256 psi | 81% | 2963 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 98% | 46,282 psi | 74% | 2874 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 40,089 psi | 64% | 2648 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 41,887 psi | 67% | 2736 fps | 97% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,266 psi | 41% | 2418 fps | 95.6% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,786 psi | 69% | 2726 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 89 powders for 6.5 x 64 (Reb) loaded with the .264 | 125gr | Hasler ARIETE. Alliant Reloder-26 delivers the highest muzzle velocity at 3,091 fps; across all powders the maximum-charge window runs from 1,844 fps to 3,091 fps. ADI AR 2217 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 125.0 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for 6.5 x 64 (Reb) with the .264 | 125gr | Hasler ARIETE they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Norma 217 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.