Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 155gr | Lapua Mega 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, Vihtavuori N560 and Norma MRP.
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% | 55,027 psi | 88% | 2648 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 52,968 psi | 85% | 2625 fps | 100% |
| Accurate MAGPRO | <<locked>> | 92% | 53,447 psi | 86% | 2736 fps | 98% |
| ADI AR 2209 | <<locked>> | 90% | 53,505 psi | 86% | 2677 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 94% | 54,926 psi | 88% | 2736 fps | 99% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,037 psi | 79% | 2641 fps | 98.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,671 psi | 70% | 2605 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 53,853 psi | 86% | 2674 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 86% | 53,722 psi | 86% | 2674 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,781 psi | 88% | 2687 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 53,214 psi | 85% | 2667 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,940 psi | 88% | 2733 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,869 psi | 90% | 2700 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,114 psi | 88% | 2759 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,362 psi | 90% | 2789 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 53,069 psi | 85% | 2644 fps | 96.1% |
| Bofors RP15 | <<locked>> | 96% | 53,780 psi | 86% | 2713 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,126 psi | 82% | 2707 fps | 98.9% |
| Bofors RP5 | <<locked>> | 94% | 54,940 psi | 88% | 2733 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 55,259 psi | 89% | 2621 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 54,215 psi | 87% | 2723 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 84% | 54,578 psi | 88% | 2674 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 53,490 psi | 86% | 2628 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 92% | 54,868 psi | 88% | 2677 fps | 98.5% |
| Hodgdon H4831 SC | <<locked>> | 92% | 53,577 psi | 86% | 2661 fps | 98.3% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 54,143 psi | 87% | 2605 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 54,041 psi | 87% | 2828 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,607 psi | 88% | 2707 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,231 psi | 60% | 1647 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 53,345 psi | 86% | 2612 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 53,287 psi | 85% | 2595 fps | 99.9% |
| IMR 4831 | <<locked>> | 86% | 53,403 psi | 86% | 2618 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,854 psi | 90% | 2661 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 96% | 56,260 psi | 90% | 2769 fps | 99.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,276 psi | 63% | 2513 fps | 96% |
| Lovex S065 | <<locked>> | 84% | 53,824 psi | 86% | 2592 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,376 psi | 89% | 2638 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 56,043 psi | 90% | 2661 fps | 100% |
| Norma 204 | <<locked>> | 86% | 54,027 psi | 87% | 2661 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 39,436 psi | 63% | 2539 fps | 98.3% |
| Norma MRP | <<locked>> | 92% | 54,592 psi | 88% | 2749 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,766 psi | 88% | 2654 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 53,185 psi | 85% | 2733 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 86% | 53,635 psi | 86% | 2661 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,274 psi | 89% | 2726 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,913 psi | 61% | 1683 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,289 psi | 90% | 2694 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,752 psi | 88% | 2723 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,520 psi | 87% | 2825 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,400 psi | 79% | 2717 fps | 97.4% |
| Rottweil R 904 | <<locked>> | 90% | 54,868 psi | 88% | 2651 fps | 99% |
| Rottweil R 905 | <<locked>> | 92% | 56,159 psi | 90% | 2710 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 55,259 psi | 89% | 2621 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 84% | 53,824 psi | 86% | 2592 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,376 psi | 89% | 2638 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 53,229 psi | 85% | 2552 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,709 psi | 89% | 2703 fps | 99.7% |
| Somchem S355 | <<locked>> | 82% | 56,420 psi | 90% | 2615 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,086 psi | 90% | 2644 fps | 98.6% |
| Somchem S365 | <<locked>> | 88% | 55,230 psi | 89% | 2657 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 53,084 psi | 85% | 2631 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 82% | 54,099 psi | 87% | 2543 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 53,316 psi | 85% | 2602 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,115 psi | 90% | 2667 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 55,796 psi | 89% | 2654 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,868 psi | 88% | 2680 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,476 psi | 87% | 2746 fps | 98.7% |
| Vihtavuori N565 | <<locked>> | 98% | 54,259 psi | 87% | 2730 fps | 98.8% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,691 psi | 81% | 2723 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 56,043 psi | 90% | 2612 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,578 psi | 88% | 2674 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 53,417 psi | 86% | 2779 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 52,968 psi | 85% | 2628 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% | 34,403 psi | 55% | 2290 fps | 97.9% |
| Accurate 4350 | <<locked>> | 80% | 46,079 psi | 74% | 2520 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 43,424 psi | 70% | 2559 fps | 95.6% |
| ADI AR 2209 | <<locked>> | 80% | 38,508 psi | 62% | 2408 fps | 96.6% |
| ADI AR 2213 | <<locked>> | 84% | 39,320 psi | 63% | 2451 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 92% | 37,652 psi | 60% | 2415 fps | 95% |
| ADI AR 2225 | <<locked>> | 90% | 31,865 psi | 51% | 2329 fps | 95.9% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,798 psi | 62% | 2408 fps | 96.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,295 psi | 71% | 2526 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,995 psi | 82% | 2631 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,435 psi | 62% | 2402 fps | 96.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,301 psi | 55% | 2349 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,156 psi | 53% | 2320 fps | 99.8% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,848 psi | 46% | 2234 fps | 96.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 36,172 psi | 58% | 2448 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 50,111 psi | 80% | 2595 fps | 95.3% |
| Bofors RP15 | <<locked>> | 82% | 34,287 psi | 55% | 2346 fps | 95% |
| Bofors RP30 | <<locked>> | 90% | 36,637 psi | 59% | 2434 fps | 95.3% |
| Bofors RP5 | <<locked>> | 80% | 34,301 psi | 55% | 2349 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 48,776 psi | 78% | 2523 fps | 99.4% |
| Hodgdon H1000 | <<locked>> | 88% | 35,998 psi | 58% | 2379 fps | 95% |
| Hodgdon H414 | <<locked>> | 80% | 47,776 psi | 77% | 2569 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 80% | 50,256 psi | 81% | 2579 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 84% | 41,974 psi | 67% | 2461 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 84% | 41,234 psi | 66% | 2444 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,785 psi | 67% | 2418 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 34,156 psi | 55% | 2418 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 47,355 psi | 76% | 2595 fps | 99.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,760 psi | 45% | 1467 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,251 psi | 71% | 2461 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,111 psi | 80% | 2546 fps | 99.7% |
| IMR 4831 | <<locked>> | 80% | 43,787 psi | 70% | 2467 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,959 psi | 66% | 2405 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 86% | 40,408 psi | 65% | 2487 fps | 95.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,782 psi | 59% | 2457 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,819 psi | 77% | 2500 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 46,180 psi | 74% | 2493 fps | 99.5% |
| Lovex S071 | <<locked>> | 80% | 29,733 psi | 48% | 2178 fps | 96.2% |
| Norma 204 | <<locked>> | 80% | 44,266 psi | 71% | 2500 fps | 97.9% |
| Norma 217 | <<locked>> | 94% | 32,329 psi | 52% | 2369 fps | 95.6% |
| Norma MRP | 46.3 gr | 80% | 35,926 psi | 58% | 2415 fps | 97.3% |
| Norma URP | <<locked>> | 80% | 45,382 psi | 73% | 2510 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 37,362 psi | 60% | 2438 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 44,106 psi | 71% | 2507 fps | 99.6% |
| Ramshot Magnum | <<locked>> | 84% | 33,141 psi | 53% | 2323 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,427 psi | 46% | 1503 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 46,137 psi | 74% | 2543 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,106 psi | 71% | 2556 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 31,024 psi | 50% | 2333 fps | 95.3% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,627 psi | 68% | 2592 fps | 95.6% |
| Rottweil R 904 | <<locked>> | 80% | 39,856 psi | 64% | 2388 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 80% | 37,840 psi | 61% | 2388 fps | 96.6% |
| Rottweil R 907 | <<locked>> | 80% | 48,776 psi | 78% | 2523 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,819 psi | 77% | 2500 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 46,180 psi | 74% | 2493 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,601 psi | 75% | 2451 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,521 psi | 60% | 2385 fps | 96.5% |
| Somchem S355 | <<locked>> | 80% | 52,997 psi | 85% | 2569 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 40,393 psi | 65% | 2379 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 42,308 psi | 68% | 2467 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,377 psi | 62% | 2375 fps | 97.6% |
| Vihtavuori N150 | <<locked>> | 80% | 50,792 psi | 81% | 2500 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,586 psi | 75% | 2500 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,185 psi | 53% | 2257 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 46,006 psi | 74% | 2507 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,231 psi | 60% | 2388 fps | 99.8% |
| Vihtavuori N560 | 48.6 gr | 84% | 41,466 psi | 66% | 2516 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 88% | 38,754 psi | 62% | 2451 fps | 95.1% |
| Vihtavuori N568 | <<locked>> | 96% | 44,106 psi | 71% | 2605 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,600 psi | 73% | 2464 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,776 psi | 77% | 2569 fps | 99.6% |
| Winchester StaBALL HD | 45.8 gr | 80% | 29,399 psi | 47% | 2336 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,925 psi | 56% | 2303 fps | 95.4% |
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 73 powders for 6.5 x 64 Brenneke loaded with the .264 | 155gr | Lapua Mega. Hodgdon Retumbo delivers the highest muzzle velocity at 2,828 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,828 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 60–90 %, leaving at least 10 % headroom. The 155.0 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, Norma MRP rank at the top here: for 6.5 x 64 Brenneke with the .264 | 155gr | Lapua Mega 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.