Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 140gr | Barnes Match Burner BT bullet and 79 powders. The key underlying parameters are shown in the table above.
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>> | 98% | 55,738 psi | 89% | 2779 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 54,056 psi | 87% | 2769 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 53,461 psi | 86% | 2867 fps | 98% |
| Accurate MAGPRO | <<locked>> | 96% | 54,099 psi | 87% | 2864 fps | 96.9% |
| ADI AR 2208 | <<locked>> | 84% | 56,072 psi | 90% | 2736 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 54,839 psi | 88% | 2818 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 98% | 56,101 psi | 90% | 2871 fps | 98.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 38,711 psi | 62% | 2602 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 53,650 psi | 86% | 2710 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 54,737 psi | 88% | 2822 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 56,043 psi | 90% | 2841 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 54,389 psi | 87% | 2808 fps | 98.8% |
| Alliant Reloder-22 | <<locked>> | 98% | 55,506 psi | 89% | 2867 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 52,881 psi | 85% | 2795 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,689 psi | 78% | 2785 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 52,794 psi | 85% | 2874 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 54,360 psi | 87% | 2848 fps | 98.9% |
| Bofors RP3 | <<locked>> | 82% | 54,824 psi | 88% | 2730 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 44,628 psi | 72% | 2713 fps | 96.4% |
| Bofors RP5 | <<locked>> | 98% | 55,506 psi | 89% | 2867 fps | 99.1% |
| Bofors RP7 | <<locked>> | 86% | 53,940 psi | 86% | 2720 fps | 99.3% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 48,327 psi | 77% | 2736 fps | 97.4% |
| Hodgdon H380 | <<locked>> | 82% | 54,679 psi | 88% | 2743 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 56,130 psi | 90% | 2822 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 55,317 psi | 89% | 2779 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 96% | 56,405 psi | 90% | 2818 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 55,042 psi | 88% | 2795 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 55,347 psi | 89% | 2749 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 47,703 psi | 76% | 2835 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 88% | 56,275 psi | 90% | 2858 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 59% | 1716 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 55,709 psi | 89% | 2720 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 54,897 psi | 88% | 2753 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 86% | 55,419 psi | 89% | 2746 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 54,534 psi | 87% | 2762 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 54,114 psi | 87% | 2749 fps | 97.3% |
| IMR 7828 SSC | <<locked>> | 98% | 53,824 psi | 86% | 2848 fps | 97.9% |
| Lovex S062 | <<locked>> | 82% | 56,086 psi | 90% | 2713 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,753 psi | 89% | 2743 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 53,737 psi | 86% | 2736 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 49,864 psi | 80% | 2694 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 55,854 psi | 90% | 2808 fps | 98.9% |
| Norma MRP | <<locked>> | 96% | 55,259 psi | 89% | 2890 fps | 99.8% |
| Norma URP | <<locked>> | 90% | 56,318 psi | 90% | 2805 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 54,201 psi | 87% | 2864 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 55,056 psi | 88% | 2808 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,083 psi | 84% | 2799 fps | 99.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,449 psi | 60% | 1755 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,708 psi | 88% | 2733 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 55,608 psi | 89% | 2831 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 53,954 psi | 87% | 2792 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 56,014 psi | 90% | 2874 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,066 psi | 77% | 2835 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 84% | 54,969 psi | 88% | 2726 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 52,953 psi | 85% | 2736 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 94% | 53,722 psi | 86% | 2795 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 86% | 53,940 psi | 86% | 2720 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,753 psi | 89% | 2743 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 56,086 psi | 90% | 2713 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 53,737 psi | 86% | 2736 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 56,173 psi | 90% | 2779 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 55,376 psi | 89% | 2608 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,042 psi | 88% | 2697 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 53,272 psi | 85% | 2789 fps | 98.8% |
| Somchem S355 | <<locked>> | 84% | 54,781 psi | 88% | 2723 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 54,273 psi | 87% | 2726 fps | 97.1% |
| Somchem S365 | <<locked>> | 92% | 56,057 psi | 90% | 2805 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 54,186 psi | 87% | 2769 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 86% | 55,767 psi | 89% | 2694 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 54,592 psi | 88% | 2746 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 53,461 psi | 86% | 2746 fps | 99.1% |
| Vihtavuori N550 | <<locked>> | 88% | 53,911 psi | 86% | 2753 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 55,187 psi | 88% | 2818 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 55,288 psi | 89% | 2884 fps | 97.7% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 50,995 psi | 82% | 2799 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 54,201 psi | 87% | 2713 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 56,130 psi | 90% | 2822 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 52,678 psi | 84% | 2920 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,389 psi | 87% | 2769 fps | 98.8% |
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 30,530 psi | 49% | 2303 fps | 95% |
| Accurate 4350 | <<locked>> | 80% | 41,249 psi | 66% | 2556 fps | 99.5% |
| Accurate High Country | <<locked>> | 88% | 43,410 psi | 70% | 2684 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 92% | 47,021 psi | 75% | 2743 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 49,617 psi | 80% | 2638 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 39,537 psi | 63% | 2536 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 92% | 45,847 psi | 74% | 2694 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 96% | 34,113 psi | 55% | 2480 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,618 psi | 81% | 2664 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 39,856 psi | 64% | 2566 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,382 psi | 73% | 2677 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 39,508 psi | 63% | 2533 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 88% | 39,726 psi | 64% | 2582 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,298 psi | 47% | 2329 fps | 98.2% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,227 psi | 50% | 2398 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 31,488 psi | 50% | 2444 fps | 96.9% |
| Bofors RP15 | <<locked>> | 90% | 39,436 psi | 63% | 2572 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 51,285 psi | 82% | 2677 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 41,698 psi | 67% | 2654 fps | 95.5% |
| Bofors RP5 | <<locked>> | 88% | 39,726 psi | 64% | 2582 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 44,701 psi | 72% | 2562 fps | 97.9% |
| Hodgdon H1000 | <<locked>> | 96% | 42,206 psi | 68% | 2615 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 51,242 psi | 82% | 2690 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 42,975 psi | 69% | 2598 fps | 98.1% |
| Hodgdon H4350 | <<locked>> | 80% | 45,905 psi | 74% | 2618 fps | 97.6% |
| Hodgdon H4831 | <<locked>> | 90% | 46,122 psi | 74% | 2644 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 48,109 psi | 77% | 2684 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,434 psi | 60% | 2457 fps | 99.8% |
| Hodgdon Retumbo | <<locked>> | 92% | 36,970 psi | 59% | 2585 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 41,945 psi | 67% | 2615 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,470 psi | 44% | 1529 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 52,228 psi | 84% | 2671 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,350 psi | 65% | 2497 fps | 96.9% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,122 psi | 74% | 2592 fps | 98.5% |
| IMR 4831 | <<locked>> | 80% | 39,407 psi | 63% | 2503 fps | 99.3% |
| IMR 4955 Enduron | <<locked>> | 88% | 44,991 psi | 72% | 2589 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 92% | 43,947 psi | 70% | 2667 fps | 95.4% |
| Lovex S062 | <<locked>> | 80% | 52,605 psi | 84% | 2664 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 43,482 psi | 70% | 2539 fps | 99.1% |
| Lovex S070 | <<locked>> | 80% | 41,843 psi | 67% | 2526 fps | 98% |
| Lovex S071 | <<locked>> | 86% | 31,894 psi | 51% | 2339 fps | 95.6% |
| Norma 204 | <<locked>> | 80% | 39,827 psi | 64% | 2520 fps | 95.3% |
| Norma MRP | <<locked>> | 82% | 33,982 psi | 54% | 2474 fps | 95% |
| Norma URP | <<locked>> | 80% | 40,698 psi | 65% | 2543 fps | 99.4% |
| Ramshot Grand | <<locked>> | 92% | 43,700 psi | 70% | 2677 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 39,523 psi | 63% | 2536 fps | 98% |
| Ramshot Magnum | <<locked>> | 90% | 36,289 psi | 58% | 2497 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,094 psi | 45% | 1568 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,053 psi | 82% | 2677 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 48,153 psi | 77% | 2723 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,075 psi | 66% | 2572 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,421 psi | 63% | 2582 fps | 99% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 36,172 psi | 58% | 2569 fps | 96% |
| Rottweil R 903 | <<locked>> | 80% | 48,153 psi | 77% | 2625 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 43,816 psi | 70% | 2572 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 84% | 38,595 psi | 62% | 2516 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 44,701 psi | 72% | 2562 fps | 97.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 43,482 psi | 70% | 2539 fps | 99.1% |
| Shooters World Precision | <<locked>> | 80% | 52,605 psi | 84% | 2664 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 41,843 psi | 67% | 2526 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,385 psi | 79% | 2677 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,849 psi | 78% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 42,714 psi | 68% | 2490 fps | 98% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 38,247 psi | 61% | 2510 fps | 95.2% |
| Somchem S355 | <<locked>> | 80% | 48,167 psi | 77% | 2621 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 47,601 psi | 76% | 2615 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 37,492 psi | 60% | 2507 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 36,811 psi | 59% | 2448 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 46,122 psi | 74% | 2552 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,163 psi | 68% | 2543 fps | 99.5% |
| Vihtavuori N165 | <<locked>> | 86% | 36,100 psi | 58% | 2428 fps | 95% |
| Vihtavuori N550 | <<locked>> | 80% | 41,437 psi | 66% | 2543 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 32,706 psi | 52% | 2405 fps | 98.2% |
| Vihtavuori N560 | <<locked>> | 90% | 45,034 psi | 72% | 2700 fps | 95.3% |
| Vihtavuori N565 | <<locked>> | 96% | 44,585 psi | 71% | 2684 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,104 psi | 66% | 2510 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 43,221 psi | 69% | 2605 fps | 98.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 25,991 psi | 42% | 2320 fps | 97.7% |
| Winchester Supreme 780 | <<locked>> | 86% | 38,406 psi | 62% | 2484 fps | 95.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 85 powders for 6.5 x 64 Brenneke loaded with the .264 | 140gr | Barnes Match Burner BT. Winchester StaBALL HD delivers the highest muzzle velocity at 2,920 fps; across all powders the maximum-charge window runs from 1,716 fps to 2,920 fps. ADI AR 2217 gives the best case fill at 100 %, and 85 of the 85 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:9.0 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. As outliers, Baschieri & Pellagri 109, IMR 8133 Enduron, 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.