Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 140gr | Swift A-Frame bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Norma MRP and Vihtavuori N560.
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% | 54,346 psi | 87% | 2792 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,666 psi | 89% | 2822 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 52,953 psi | 85% | 2877 fps | 97.3% |
| ADI AR 2209 | <<locked>> | 90% | 52,808 psi | 85% | 2822 fps | 99% |
| ADI AR 2213 | <<locked>> | 94% | 54,157 psi | 87% | 2881 fps | 98.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,486 psi | 78% | 2779 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,250 psi | 69% | 2740 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,055 psi | 85% | 2825 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,143 psi | 87% | 2838 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,941 psi | 90% | 2867 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,172 psi | 87% | 2877 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,492 psi | 89% | 2854 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 54,708 psi | 88% | 2913 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,680 psi | 89% | 2940 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,101 psi | 90% | 2844 fps | 96.1% |
| Bofors RP15 | <<locked>> | 96% | 53,374 psi | 86% | 2864 fps | 99.1% |
| Bofors RP30ᴾ | <<locked>> | 100% | 50,705 psi | 81% | 2851 fps | 98.4% |
| Bofors RP5 | <<locked>> | 94% | 54,172 psi | 87% | 2877 fps | 99.3% |
| Bofors RP7 | <<locked>> | 84% | 54,592 psi | 88% | 2769 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,679 psi | 86% | 2871 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 84% | 53,954 psi | 87% | 2825 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 82% | 53,026 psi | 85% | 2779 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 92% | 54,302 psi | 87% | 2822 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,113 psi | 85% | 2802 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 53,345 psi | 86% | 2753 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,505 psi | 86% | 2976 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 84% | 54,041 psi | 87% | 2858 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,985 psi | 59% | 1759 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,333 psi | 90% | 2812 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,217 psi | 90% | 2795 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 56,115 psi | 90% | 2815 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,288 psi | 89% | 2805 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 96% | 55,651 psi | 89% | 2913 fps | 98.7% |
| Lovex S065 | <<locked>> | 84% | 53,461 psi | 86% | 2743 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 54,940 psi | 88% | 2789 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,274 psi | 89% | 2805 fps | 100% |
| Norma 204 | <<locked>> | 86% | 53,447 psi | 86% | 2808 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 38,928 psi | 62% | 2664 fps | 97.4% |
| Norma MRP | <<locked>> | 92% | 53,983 psi | 87% | 2897 fps | 99.9% |
| Norma URP | <<locked>> | 86% | 54,288 psi | 87% | 2808 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 52,707 psi | 85% | 2881 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 86% | 53,011 psi | 85% | 2808 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 54,636 psi | 88% | 2871 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,840 psi | 61% | 1801 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,767 psi | 89% | 2848 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,012 psi | 87% | 2874 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,128 psi | 87% | 2976 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,892 psi | 78% | 2854 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 82% | 55,912 psi | 90% | 2769 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,288 psi | 87% | 2795 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 92% | 55,506 psi | 89% | 2858 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 84% | 54,592 psi | 88% | 2769 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,461 psi | 86% | 2743 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 54,940 psi | 88% | 2789 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,782 psi | 89% | 2644 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,115 psi | 90% | 2749 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,071 psi | 88% | 2851 fps | 99.4% |
| Somchem S355 | <<locked>> | 82% | 55,637 psi | 89% | 2766 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,637 psi | 89% | 2789 fps | 98% |
| Somchem S365 | <<locked>> | 88% | 54,737 psi | 88% | 2812 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,028 psi | 90% | 2828 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 53,258 psi | 85% | 2690 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,869 psi | 90% | 2799 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 55,535 psi | 89% | 2812 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 86% | 55,303 psi | 89% | 2805 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,012 psi | 87% | 2828 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 53,882 psi | 86% | 2890 fps | 98% |
| Vihtavuori N565 | <<locked>> | 98% | 53,679 psi | 86% | 2874 fps | 98.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,256 psi | 81% | 2864 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,347 psi | 89% | 2759 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 53,954 psi | 87% | 2825 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 96% | 52,866 psi | 85% | 2933 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,999 psi | 90% | 2828 fps | 99.4% |
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% | 33,997 psi | 55% | 2411 fps | 97% |
| Accurate 4350 | <<locked>> | 80% | 45,600 psi | 73% | 2661 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 45,818 psi | 73% | 2749 fps | 95.5% |
| ADI AR 2209 | <<locked>> | 80% | 37,942 psi | 61% | 2533 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 86% | 41,394 psi | 66% | 2638 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 96% | 42,583 psi | 68% | 2661 fps | 96% |
| ADI AR 2225 | <<locked>> | 92% | 33,417 psi | 54% | 2497 fps | 95.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,526 psi | 70% | 2664 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,314 psi | 81% | 2782 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,058 psi | 61% | 2533 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 82% | 36,216 psi | 58% | 2530 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,503 psi | 52% | 2438 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,384 psi | 46% | 2343 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,418 psi | 57% | 2566 fps | 98.8% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,605 psi | 84% | 2782 fps | 95.2% |
| Bofors RP15 | <<locked>> | 86% | 38,450 psi | 62% | 2579 fps | 95.7% |
| Bofors RP30 | <<locked>> | 92% | 38,493 psi | 62% | 2612 fps | 95.1% |
| Bofors RP5 | <<locked>> | 82% | 36,216 psi | 58% | 2530 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 48,269 psi | 77% | 2664 fps | 99% |
| Hodgdon H1000 | <<locked>> | 90% | 38,232 psi | 61% | 2566 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 47,108 psi | 76% | 2707 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 49,734 psi | 80% | 2723 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 86% | 44,179 psi | 71% | 2644 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,439 psi | 70% | 2631 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,118 psi | 66% | 2552 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 35,940 psi | 58% | 2595 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 46,760 psi | 75% | 2733 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,717 psi | 44% | 1572 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,671 psi | 70% | 2595 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,574 psi | 79% | 2687 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 43,424 psi | 70% | 2608 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 43,149 psi | 69% | 2589 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 88% | 42,670 psi | 68% | 2677 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 47,065 psi | 75% | 2638 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 45,614 psi | 73% | 2631 fps | 99.1% |
| Lovex S071 | <<locked>> | 80% | 29,312 psi | 47% | 2290 fps | 95.1% |
| Norma 204 | <<locked>> | 80% | 43,613 psi | 70% | 2631 fps | 97.1% |
| Norma 217 | <<locked>> | 96% | 33,997 psi | 55% | 2543 fps | 95.4% |
| Norma MRP | 49.6 gr | 80% | 35,230 psi | 56% | 2533 fps | 96.3% |
| Norma URP | <<locked>> | 80% | 44,773 psi | 72% | 2651 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 39,407 psi | 63% | 2618 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 43,439 psi | 70% | 2644 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 35,215 psi | 56% | 2500 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,311 psi | 45% | 1608 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,513 psi | 73% | 2684 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,627 psi | 70% | 2697 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,735 psi | 52% | 2507 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 45,339 psi | 73% | 2785 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 52,605 psi | 84% | 2723 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 42,061 psi | 67% | 2572 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 80% | 37,289 psi | 60% | 2516 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 48,269 psi | 77% | 2664 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,065 psi | 75% | 2638 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 45,614 psi | 73% | 2631 fps | 99.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,547 psi | 84% | 2602 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,238 psi | 74% | 2592 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,956 psi | 59% | 2510 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 52,185 psi | 84% | 2717 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 42,859 psi | 69% | 2562 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 41,582 psi | 67% | 2605 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,898 psi | 61% | 2500 fps | 96.7% |
| Vihtavuori N150 | <<locked>> | 80% | 50,169 psi | 80% | 2644 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,151 psi | 74% | 2644 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 35,114 psi | 56% | 2431 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 45,426 psi | 73% | 2644 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,477 psi | 58% | 2513 fps | 99.4% |
| Vihtavuori N560 | 53.4 gr | 86% | 43,845 psi | 70% | 2710 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 90% | 40,901 psi | 66% | 2635 fps | 95% |
| Vihtavuori N568 | <<locked>> | 98% | 46,673 psi | 75% | 2795 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,107 psi | 72% | 2605 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,355 psi | 76% | 2713 fps | 99.2% |
| Winchester StaBALL HD | 49.1 gr | 80% | 28,892 psi | 46% | 2448 fps | 99.5% |
| Winchester Supreme 780 | <<locked>> | 82% | 37,043 psi | 59% | 2484 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 73 powders for 6.5 x 64 (Reb) loaded with the .264 | 140gr | Swift A-Frame. Hodgdon Retumbo delivers the highest muzzle velocity at 2,976 fps; across all powders the maximum-charge window runs from 1,759 fps to 2,976 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 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 1:10.0 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, Norma MRP, Vihtavuori N560 rank at the top here: for 6.5 x 64 (Reb) with the .264 | 140gr | Swift A-Frame 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.