Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 140gr | Speer Deep Curl Soft Point bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 and Accurate MAGPRO.
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>> | 94% | 54,868 psi | 88% | 2802 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,275 psi | 90% | 2831 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 56,333 psi | 90% | 2949 fps | 99% |
| Accurate MAGPRO | <<locked>> | 92% | 53,417 psi | 86% | 2887 fps | 97.4% |
| ADI AR 2209 | <<locked>> | 90% | 53,301 psi | 85% | 2831 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 94% | 54,926 psi | 88% | 2894 fps | 98.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,110 psi | 79% | 2792 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,830 psi | 70% | 2753 fps | 99.3% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,577 psi | 86% | 2828 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,577 psi | 86% | 2828 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,664 psi | 86% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,462 psi | 87% | 2844 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 52,968 psi | 85% | 2822 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,940 psi | 88% | 2890 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 96% | 56,028 psi | 90% | 2861 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,172 psi | 88% | 2920 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 52,446 psi | 84% | 2890 fps | 100% |
| Bofors RP15 | <<locked>> | 96% | 53,824 psi | 86% | 2874 fps | 99.2% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,140 psi | 82% | 2858 fps | 98.5% |
| Bofors RP5 | <<locked>> | 94% | 54,940 psi | 88% | 2890 fps | 99.4% |
| Bofors RP7 | <<locked>> | 84% | 55,129 psi | 88% | 2779 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,027 psi | 87% | 2877 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 84% | 54,476 psi | 87% | 2831 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 82% | 53,548 psi | 86% | 2789 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 92% | 54,737 psi | 88% | 2831 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,548 psi | 86% | 2815 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,882 psi | 86% | 2759 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,215 psi | 87% | 2992 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 84% | 54,549 psi | 87% | 2864 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,043 psi | 59% | 1765 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,388 psi | 86% | 2769 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,434 psi | 90% | 2802 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 53,142 psi | 85% | 2776 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,738 psi | 89% | 2815 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 96% | 56,420 psi | 90% | 2930 fps | 98.9% |
| Lovex S065 | <<locked>> | 84% | 53,708 psi | 86% | 2749 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,477 psi | 89% | 2799 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,101 psi | 90% | 2818 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,940 psi | 86% | 2818 fps | 99.1% |
| Norma 217ᴾ | <<locked>> | 100% | 39,320 psi | 63% | 2674 fps | 97.6% |
| Norma MRP | <<locked>> | 92% | 54,447 psi | 87% | 2907 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 54,839 psi | 88% | 2818 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,185 psi | 85% | 2890 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 86% | 53,534 psi | 86% | 2818 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,405 psi | 89% | 2884 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,884 psi | 61% | 1808 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,347 psi | 90% | 2858 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,578 psi | 88% | 2884 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,781 psi | 88% | 2989 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,574 psi | 79% | 2867 fps | 96.8% |
| Rottweil R 904 | <<locked>> | 90% | 54,766 psi | 88% | 2805 fps | 98.6% |
| Rottweil R 905 | <<locked>> | 92% | 56,043 psi | 90% | 2867 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 84% | 55,129 psi | 88% | 2779 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,708 psi | 86% | 2749 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,477 psi | 89% | 2799 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,362 psi | 90% | 2654 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 53,142 psi | 85% | 2707 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,608 psi | 89% | 2861 fps | 99.5% |
| Somchem S355 | <<locked>> | 82% | 56,202 psi | 90% | 2776 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,275 psi | 90% | 2799 fps | 98.2% |
| Somchem S365 | <<locked>> | 88% | 55,332 psi | 89% | 2822 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 52,997 psi | 85% | 2785 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 82% | 53,809 psi | 86% | 2700 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,420 psi | 90% | 2808 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,999 psi | 90% | 2818 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 86% | 55,811 psi | 89% | 2815 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,853 psi | 88% | 2841 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,331 psi | 87% | 2904 fps | 98.2% |
| Vihtavuori N565 | <<locked>> | 98% | 54,157 psi | 87% | 2884 fps | 98.3% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,937 psi | 82% | 2877 fps | 96.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,101 psi | 90% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,476 psi | 87% | 2831 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 96% | 53,505 psi | 86% | 2940 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,779 psi | 85% | 2779 fps | 99% |
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>> | 80% | 34,287 psi | 55% | 2418 fps | 97.2% |
| Accurate 4350 | <<locked>> | 80% | 45,934 psi | 74% | 2671 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 39,900 psi | 64% | 2638 fps | 95.1% |
| Accurate MAGPRO | 56.2 gr | 88% | 46,543 psi | 75% | 2762 fps | 95.8% |
| ADI AR 2209 | <<locked>> | 80% | 38,406 psi | 62% | 2546 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 86% | 41,829 psi | 67% | 2648 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 94% | 40,161 psi | 64% | 2608 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 92% | 33,736 psi | 54% | 2507 fps | 96% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,667 psi | 62% | 2546 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,667 psi | 62% | 2546 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,106 psi | 71% | 2677 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,937 psi | 82% | 2792 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,319 psi | 61% | 2539 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,666 psi | 59% | 2539 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,982 psi | 53% | 2448 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,761 psi | 46% | 2356 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,926 psi | 58% | 2579 fps | 98.9% |
| Bofors RP15 | <<locked>> | 84% | 36,434 psi | 58% | 2533 fps | 95% |
| Bofors RP30 | <<locked>> | 92% | 38,957 psi | 62% | 2621 fps | 95.3% |
| Bofors RP5 | <<locked>> | 82% | 36,666 psi | 59% | 2539 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 48,776 psi | 78% | 2674 fps | 99.1% |
| Hodgdon H1000 | <<locked>> | 90% | 38,566 psi | 62% | 2575 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 47,645 psi | 76% | 2720 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 80% | 50,256 psi | 81% | 2733 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 86% | 44,628 psi | 72% | 2654 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,903 psi | 70% | 2641 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,655 psi | 67% | 2562 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 36,347 psi | 58% | 2608 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 47,253 psi | 76% | 2743 fps | 99.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,833 psi | 45% | 1578 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,179 psi | 71% | 2608 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,096 psi | 80% | 2700 fps | 99.5% |
| IMR 4831 | <<locked>> | 80% | 43,714 psi | 70% | 2618 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,569 psi | 70% | 2598 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 86% | 40,321 psi | 65% | 2628 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,587 psi | 76% | 2648 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 45,890 psi | 74% | 2638 fps | 99.2% |
| Lovex S071 | <<locked>> | 80% | 29,588 psi | 47% | 2300 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 44,092 psi | 71% | 2641 fps | 97.3% |
| Norma 217 | <<locked>> | 96% | 34,563 psi | 55% | 2559 fps | 95.8% |
| Norma MRP | <<locked>> | 80% | 35,708 psi | 57% | 2543 fps | 96.5% |
| Norma URP | <<locked>> | 80% | 45,078 psi | 72% | 2657 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 39,842 psi | 64% | 2631 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 43,918 psi | 70% | 2651 fps | 99.3% |
| Ramshot Magnum | <<locked>> | 86% | 35,592 psi | 57% | 2513 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,442 psi | 46% | 1614 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,818 psi | 73% | 2690 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,150 psi | 71% | 2707 fps | 99.9% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 33,257 psi | 53% | 2523 fps | 95.5% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 45,948 psi | 74% | 2799 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 39,827 psi | 64% | 2526 fps | 95% |
| Rottweil R 905 | <<locked>> | 80% | 37,768 psi | 61% | 2526 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 48,776 psi | 78% | 2674 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,587 psi | 76% | 2648 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 45,890 psi | 74% | 2638 fps | 99.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,852 psi | 85% | 2608 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,456 psi | 74% | 2598 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,449 psi | 60% | 2523 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 52,765 psi | 85% | 2726 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 43,265 psi | 69% | 2575 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 42,163 psi | 68% | 2615 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,348 psi | 61% | 2513 fps | 96.9% |
| Vihtavuori N150 | <<locked>> | 80% | 50,459 psi | 81% | 2651 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,441 psi | 74% | 2651 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,346 psi | 57% | 2441 fps | 95.5% |
| Vihtavuori N550 | <<locked>> | 80% | 45,963 psi | 74% | 2657 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 37,014 psi | 59% | 2523 fps | 99.5% |
| Vihtavuori N560 | 53.9 gr | 86% | 44,324 psi | 71% | 2720 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 90% | 41,365 psi | 66% | 2644 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 98% | 47,340 psi | 76% | 2812 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,585 psi | 73% | 2615 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,645 psi | 76% | 2720 fps | 99.3% |
| Winchester StaBALL HD | 49.6 gr | 80% | 29,269 psi | 47% | 2461 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,507 psi | 60% | 2493 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 74 powders for 6.5 x 64 (Reb) loaded with the .264 | 140gr | Speer Deep Curl Soft Point. Hodgdon Retumbo delivers the highest muzzle velocity at 2,992 fps; across all powders the maximum-charge window runs from 1,765 fps to 2,992 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 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 140.0 gr projectile in 0.264" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Winchester StaBALL HD, Vihtavuori N560, Accurate MAGPRO rank at the top here: for 6.5 x 64 (Reb) with the .264 | 140gr | Speer Deep Curl Soft Point 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.