Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 159gr | RWS TMR bullet and 72 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 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% | 53,635 psi | 86% | 2598 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 54,940 psi | 88% | 2621 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 55,129 psi | 88% | 2740 fps | 99.4% |
| Accurate MAGPRO | <<locked>> | 92% | 55,651 psi | 89% | 2740 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 90% | 55,564 psi | 89% | 2680 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 92% | 53,098 psi | 85% | 2680 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 51,198 psi | 82% | 2651 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,672 psi | 73% | 2618 fps | 99.9% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 55,883 psi | 90% | 2677 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 55,695 psi | 89% | 2667 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 55,216 psi | 89% | 2671 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 53,301 psi | 85% | 2680 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 54,911 psi | 88% | 2654 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 54,114 psi | 87% | 2713 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 55,143 psi | 88% | 2740 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 54,868 psi | 88% | 2651 fps | 96.9% |
| Bofors RP15 | <<locked>> | 96% | 55,956 psi | 90% | 2717 fps | 99.8% |
| Bofors RP30ᴾ | <<locked>> | 100% | 53,708 psi | 86% | 2717 fps | 99.4% |
| Bofors RP5 | <<locked>> | 92% | 53,301 psi | 85% | 2680 fps | 99.7% |
| Bofors RP7 | <<locked>> | 82% | 53,519 psi | 86% | 2569 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 56,289 psi | 90% | 2730 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 84% | 56,362 psi | 90% | 2671 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 55,492 psi | 89% | 2631 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 90% | 53,026 psi | 85% | 2625 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 92% | 55,564 psi | 89% | 2661 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,985 psi | 90% | 2598 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 53,040 psi | 85% | 2785 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 52,953 psi | 85% | 2654 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,376 psi | 60% | 1634 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 54,984 psi | 88% | 2608 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 54,853 psi | 88% | 2592 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 55,230 psi | 89% | 2615 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 54,302 psi | 87% | 2612 fps | 98.8% |
| IMR 7828 SSC | <<locked>> | 94% | 54,795 psi | 88% | 2717 fps | 99.3% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 41,336 psi | 66% | 2530 fps | 97.1% |
| Lovex S065 | <<locked>> | 84% | 55,767 psi | 89% | 2592 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 53,954 psi | 87% | 2592 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 54,882 psi | 88% | 2615 fps | 100% |
| Norma 204 | <<locked>> | 86% | 56,072 psi | 90% | 2664 fps | 99.7% |
| Norma 217ᴾ | <<locked>> | 100% | 41,336 psi | 66% | 2549 fps | 99% |
| Norma MRP | <<locked>> | 90% | 53,330 psi | 86% | 2700 fps | 100% |
| Norma URP | <<locked>> | 84% | 53,461 psi | 86% | 2605 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 55,840 psi | 90% | 2743 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 86% | 55,709 psi | 89% | 2661 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 53,722 psi | 86% | 2677 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,058 psi | 61% | 1670 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 54,679 psi | 88% | 2641 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 53,127 psi | 85% | 2671 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 53,417 psi | 86% | 2779 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 52,272 psi | 84% | 2736 fps | 98.3% |
| Rottweil R 904 | <<locked>> | 88% | 53,084 psi | 85% | 2598 fps | 99% |
| Rottweil R 905 | <<locked>> | 90% | 54,766 psi | 88% | 2661 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 53,519 psi | 86% | 2569 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 55,767 psi | 89% | 2592 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 53,954 psi | 87% | 2592 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 54,752 psi | 88% | 2549 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 54,331 psi | 87% | 2657 fps | 99.8% |
| Somchem S361 | <<locked>> | 88% | 54,563 psi | 87% | 2595 fps | 98.7% |
| Somchem S365 | <<locked>> | 86% | 53,708 psi | 86% | 2605 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 55,056 psi | 88% | 2631 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 55,782 psi | 89% | 2536 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,042 psi | 88% | 2598 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 54,578 psi | 88% | 2618 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 54,143 psi | 87% | 2602 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 53,635 psi | 86% | 2631 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 53,142 psi | 85% | 2697 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 96% | 52,953 psi | 85% | 2684 fps | 98.9% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 53,185 psi | 85% | 2733 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,288 psi | 87% | 2559 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 52,953 psi | 85% | 2621 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 94% | 52,373 psi | 84% | 2730 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 54,955 psi | 88% | 2631 fps | 99.7% |
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% | 35,897 psi | 58% | 2297 fps | 98.6% |
| Accurate 4350 | <<locked>> | 80% | 47,906 psi | 77% | 2520 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 38,957 psi | 62% | 2451 fps | 96.1% |
| Accurate MAGPRO | <<locked>> | 84% | 42,308 psi | 68% | 2510 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 39,943 psi | 64% | 2411 fps | 97.4% |
| ADI AR 2213 | <<locked>> | 82% | 38,189 psi | 61% | 2405 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 90% | 36,738 psi | 59% | 2372 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 88% | 31,082 psi | 50% | 2287 fps | 96.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,263 psi | 65% | 2411 fps | 97.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,064 psi | 74% | 2526 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,914 psi | 64% | 2408 fps | 97.4% |
| Alliant Reloder-22 | <<locked>> | 80% | 35,766 psi | 57% | 2356 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 34,664 psi | 56% | 2323 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,008 psi | 48% | 2244 fps | 97.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 37,884 psi | 61% | 2454 fps | 99.8% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 48,472 psi | 78% | 2543 fps | 95.4% |
| Bofors RP15 | <<locked>> | 80% | 33,301 psi | 53% | 2297 fps | 95.1% |
| Bofors RP30 | <<locked>> | 88% | 35,766 psi | 57% | 2388 fps | 95.4% |
| Bofors RP5 | <<locked>> | 80% | 35,766 psi | 57% | 2356 fps | 96.2% |
| Bofors RP7 | <<locked>> | 80% | 50,314 psi | 81% | 2520 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 86% | 35,157 psi | 56% | 2339 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 49,458 psi | 79% | 2566 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 80% | 51,895 psi | 83% | 2579 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 82% | 40,756 psi | 65% | 2411 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,045 psi | 64% | 2395 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,468 psi | 70% | 2418 fps | 100% |
| Hodgdon Retumbo | 47.5 gr | 84% | 33,315 psi | 53% | 2372 fps | 95.8% |
| Hodgdon Superformance | <<locked>> | 80% | 49,081 psi | 79% | 2595 fps | 99.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,021 psi | 45% | 1460 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 45,759 psi | 73% | 2464 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,648 psi | 83% | 2543 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 45,455 psi | 73% | 2467 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 39,740 psi | 64% | 2356 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 82% | 36,796 psi | 59% | 2385 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 96% | 36,289 psi | 58% | 2421 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 49,371 psi | 79% | 2497 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 47,485 psi | 76% | 2490 fps | 99.8% |
| Lovex S071 | <<locked>> | 80% | 31,067 psi | 50% | 2185 fps | 97.1% |
| Norma 204 | <<locked>> | 80% | 45,832 psi | 73% | 2500 fps | 98.5% |
| Norma 217 | <<locked>> | 92% | 31,821 psi | 51% | 2333 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 37,507 psi | 60% | 2421 fps | 98.1% |
| Norma URP | <<locked>> | 80% | 46,818 psi | 75% | 2503 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 36,332 psi | 58% | 2388 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 45,701 psi | 73% | 2510 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 82% | 32,300 psi | 52% | 2280 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,703 psi | 46% | 1493 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,921 psi | 77% | 2543 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,093 psi | 74% | 2562 fps | 100% |
| ReloadSwiss RS 76 | 49.7 gr | 82% | 30,269 psi | 49% | 2290 fps | 95.4% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 41,684 psi | 67% | 2549 fps | 95.7% |
| Rottweil R 904 | <<locked>> | 80% | 41,278 psi | 66% | 2392 fps | 96.7% |
| Rottweil R 905 | <<locked>> | 80% | 39,392 psi | 63% | 2395 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 80% | 50,314 psi | 81% | 2520 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,371 psi | 79% | 2497 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 47,485 psi | 76% | 2490 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,066 psi | 77% | 2451 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,059 psi | 63% | 2392 fps | 97.3% |
| Somchem S361 | <<locked>> | 80% | 41,959 psi | 67% | 2385 fps | 96% |
| Somchem S365 | <<locked>> | 80% | 44,135 psi | 71% | 2467 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,842 psi | 64% | 2379 fps | 98.2% |
| Vihtavuori N150 | <<locked>> | 80% | 52,127 psi | 84% | 2487 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,254 psi | 77% | 2500 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,534 psi | 55% | 2264 fps | 96.4% |
| Vihtavuori N550 | <<locked>> | 80% | 47,601 psi | 76% | 2503 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 38,638 psi | 62% | 2385 fps | 100% |
| Vihtavuori N560 | <<locked>> | 82% | 40,379 psi | 65% | 2467 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 86% | 37,826 psi | 61% | 2408 fps | 95.2% |
| Vihtavuori N568 | <<locked>> | 94% | 43,192 psi | 69% | 2562 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 47,427 psi | 76% | 2464 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 49,777 psi | 80% | 2572 fps | 99.9% |
| Winchester StaBALL HD | 46.5 gr | 80% | 30,719 psi | 49% | 2349 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 36,521 psi | 59% | 2313 fps | 96.4% |
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 72 powders for 6.5 x 64 Brenneke loaded with the .264 | 159gr | RWS TMR. Hodgdon Retumbo delivers the highest muzzle velocity at 2,785 fps; across all powders the maximum-charge window runs from 1,634 fps to 2,785 fps. ADI AR 2217 gives the best case fill at 100 %, and 72 of the 72 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 159.0 gr projectile in 0.264" calls for a 1:11.5 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. Hodgdon Retumbo, ReloadSwiss RS 76, Winchester StaBALL HD rank at the top here: for 6.5 x 64 Brenneke with the .264 | 159gr | RWS TMR 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.