Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 156gr | Berger Elite Hunter bullet and 74 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate High Country, Hodgdon Retumbo and Winchester StaBALL HD.
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>> | 92% | 52,968 psi | 85% | 2625 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,027 psi | 87% | 2648 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 54,041 psi | 87% | 2762 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 92% | 54,853 psi | 88% | 2766 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 90% | 54,650 psi | 88% | 2703 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 94% | 56,318 psi | 90% | 2769 fps | 99.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,488 psi | 81% | 2677 fps | 98.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,005 psi | 72% | 2641 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 54,969 psi | 88% | 2703 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 54,969 psi | 88% | 2703 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 55,129 psi | 88% | 2700 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 56,173 psi | 90% | 2710 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 54,317 psi | 87% | 2694 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 56,391 psi | 90% | 2766 fps | 99.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 53,867 psi | 86% | 2677 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 53,026 psi | 85% | 2736 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 53,896 psi | 86% | 2762 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 54,317 psi | 87% | 2677 fps | 96.7% |
| Bofors RP15 | <<locked>> | 96% | 55,216 psi | 89% | 2746 fps | 99.7% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,866 psi | 85% | 2743 fps | 99.3% |
| Bofors RP5 | <<locked>> | 94% | 56,391 psi | 90% | 2766 fps | 99.9% |
| Bofors RP7 | <<locked>> | 84% | 56,159 psi | 90% | 2644 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 55,434 psi | 89% | 2753 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 84% | 55,811 psi | 89% | 2700 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 54,737 psi | 88% | 2657 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 56,260 psi | 90% | 2710 fps | 98.9% |
| Hodgdon H4831 SC | <<locked>> | 92% | 54,940 psi | 88% | 2690 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,419 psi | 89% | 2628 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 55,767 psi | 89% | 2864 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 56,072 psi | 90% | 2736 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,333 psi | 60% | 1657 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 54,491 psi | 87% | 2638 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 82% | 54,172 psi | 87% | 2618 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 54,389 psi | 87% | 2638 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 53,505 psi | 86% | 2638 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 94% | 54,070 psi | 87% | 2743 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 40,451 psi | 65% | 2546 fps | 96.7% |
| Lovex S065 | <<locked>> | 84% | 55,013 psi | 88% | 2618 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 53,229 psi | 85% | 2615 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 53,911 psi | 86% | 2638 fps | 100% |
| Norma 204 | <<locked>> | 86% | 55,187 psi | 88% | 2687 fps | 99.6% |
| Norma 217ᴾ | <<locked>> | 100% | 40,654 psi | 65% | 2572 fps | 98.8% |
| Norma MRP | <<locked>> | 92% | 56,086 psi | 90% | 2782 fps | 100% |
| Norma URP | <<locked>> | 86% | 56,028 psi | 90% | 2680 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 54,650 psi | 88% | 2762 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 54,766 psi | 88% | 2687 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 52,852 psi | 85% | 2700 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,000 psi | 61% | 1693 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 54,056 psi | 87% | 2671 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 56,014 psi | 90% | 2749 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 56,434 psi | 90% | 2864 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 51,300 psi | 82% | 2759 fps | 98.1% |
| Rottweil R 904 | <<locked>> | 90% | 55,956 psi | 90% | 2677 fps | 99.2% |
| Rottweil R 905 | <<locked>> | 90% | 53,838 psi | 86% | 2684 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 56,159 psi | 90% | 2644 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 55,013 psi | 88% | 2618 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 53,229 psi | 85% | 2615 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 53,998 psi | 87% | 2575 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 53,417 psi | 86% | 2680 fps | 99.6% |
| Somchem S361 | <<locked>> | 88% | 53,693 psi | 86% | 2618 fps | 98.5% |
| Somchem S365 | <<locked>> | 86% | 53,084 psi | 85% | 2635 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 54,476 psi | 87% | 2661 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 82% | 55,056 psi | 88% | 2562 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 54,244 psi | 87% | 2621 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 53,969 psi | 87% | 2644 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 84% | 53,621 psi | 86% | 2631 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 56,115 psi | 90% | 2703 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 55,898 psi | 90% | 2779 fps | 99% |
| Vihtavuori N565 | <<locked>> | 98% | 55,883 psi | 90% | 2762 fps | 99.2% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 52,243 psi | 84% | 2759 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 53,417 psi | 86% | 2582 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 55,811 psi | 89% | 2700 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 55,564 psi | 89% | 2812 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 53,998 psi | 87% | 2654 fps | 99.6% |
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% | 35,491 psi | 57% | 2323 fps | 98.4% |
| Accurate 4350 | <<locked>> | 80% | 47,398 psi | 76% | 2549 fps | 100% |
| Accurate High Country | 47.2 gr | 80% | 38,247 psi | 61% | 2470 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 84% | 41,524 psi | 67% | 2530 fps | 95.4% |
| ADI AR 2209 | <<locked>> | 80% | 39,349 psi | 63% | 2434 fps | 97.1% |
| ADI AR 2213 | <<locked>> | 82% | 37,594 psi | 60% | 2425 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 92% | 38,725 psi | 62% | 2451 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 88% | 30,690 psi | 49% | 2306 fps | 95.8% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 39,885 psi | 64% | 2438 fps | 97.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 39,885 psi | 64% | 2438 fps | 97.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,368 psi | 73% | 2552 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 52,344 psi | 84% | 2657 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,523 psi | 63% | 2434 fps | 97.2% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,360 psi | 57% | 2382 fps | 96% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,040 psi | 55% | 2343 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,544 psi | 47% | 2264 fps | 97.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 37,333 psi | 60% | 2480 fps | 99.7% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 47,993 psi | 77% | 2569 fps | 95.1% |
| Bofors RP15 | <<locked>> | 82% | 35,128 psi | 56% | 2375 fps | 95.7% |
| Bofors RP30 | <<locked>> | 88% | 35,259 psi | 57% | 2411 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 35,360 psi | 57% | 2382 fps | 96% |
| Bofors RP7 | <<locked>> | 80% | 49,690 psi | 80% | 2546 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 88% | 37,057 psi | 59% | 2415 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 48,733 psi | 78% | 2592 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 80% | 51,474 psi | 83% | 2608 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 82% | 40,118 psi | 64% | 2431 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 82% | 39,378 psi | 63% | 2418 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,801 psi | 69% | 2444 fps | 100% |
| Hodgdon Retumbo | 47.8 gr | 84% | 32,895 psi | 53% | 2395 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 48,515 psi | 78% | 2621 fps | 99.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,021 psi | 45% | 1480 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,121 psi | 72% | 2487 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,010 psi | 82% | 2569 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 45,049 psi | 72% | 2497 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 39,204 psi | 63% | 2379 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 84% | 38,638 psi | 62% | 2461 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 98% | 37,913 psi | 61% | 2490 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 48,733 psi | 78% | 2523 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,094 psi | 76% | 2516 fps | 99.7% |
| Lovex S071 | <<locked>> | 80% | 30,560 psi | 49% | 2208 fps | 96.8% |
| Norma 204 | <<locked>> | 80% | 45,136 psi | 72% | 2526 fps | 98.4% |
| Norma 217 | <<locked>> | 92% | 31,328 psi | 50% | 2352 fps | 95.5% |
| Norma MRP | <<locked>> | 80% | 36,811 psi | 59% | 2441 fps | 97.9% |
| Norma URP | <<locked>> | 80% | 46,383 psi | 74% | 2536 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 38,363 psi | 62% | 2470 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 45,005 psi | 72% | 2533 fps | 99.8% |
| Ramshot Magnum | <<locked>> | 82% | 31,850 psi | 51% | 2300 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,471 psi | 46% | 1512 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,137 psi | 76% | 2566 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,281 psi | 73% | 2585 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 31,792 psi | 51% | 2369 fps | 96.2% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 40,959 psi | 66% | 2569 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 40,683 psi | 65% | 2415 fps | 96.4% |
| Rottweil R 905 | <<locked>> | 80% | 38,769 psi | 62% | 2418 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 80% | 49,690 psi | 80% | 2546 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,733 psi | 78% | 2523 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,094 psi | 76% | 2516 fps | 99.7% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,688 psi | 76% | 2477 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,435 psi | 62% | 2411 fps | 97.1% |
| Somchem S361 | <<locked>> | 80% | 41,336 psi | 66% | 2408 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 43,366 psi | 70% | 2490 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,436 psi | 63% | 2405 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 80% | 51,735 psi | 83% | 2520 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 47,834 psi | 77% | 2530 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,185 psi | 55% | 2290 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 80% | 46,920 psi | 75% | 2530 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,247 psi | 61% | 2415 fps | 99.9% |
| Vihtavuori N560 | <<locked>> | 82% | 39,668 psi | 64% | 2490 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 88% | 39,740 psi | 64% | 2480 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 94% | 42,467 psi | 68% | 2582 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,688 psi | 75% | 2490 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,994 psi | 79% | 2598 fps | 99.8% |
| Winchester StaBALL HD | 46.7 gr | 80% | 30,153 psi | 48% | 2369 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,926 psi | 58% | 2333 fps | 96.1% |
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 | 156gr | Berger Elite Hunter. Hodgdon Retumbo delivers the highest muzzle velocity at 2,864 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,864 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 60–90 %, leaving at least 10 % headroom. The 156.0 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, Bofors RP30 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. Accurate High Country, Hodgdon Retumbo, Winchester StaBALL HD rank at the top here: for 6.5 x 64 (Reb) with the .264 | 156gr | Berger Elite Hunter 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.