Load Specifications
Load data in caliber 6.5 x 64 Brenneke with .264 | 150gr | Sierra MatchKing bullet and 77 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and ADI AR 2213.
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>> | 96% | 54,215 psi | 87% | 2667 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,130 psi | 90% | 2703 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 55,477 psi | 89% | 2808 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 96% | 56,347 psi | 90% | 2808 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 82% | 54,230 psi | 87% | 2615 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,011 psi | 85% | 2697 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 96% | 54,447 psi | 87% | 2756 fps | 98.5% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,513 psi | 73% | 2598 fps | 96.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,161 psi | 64% | 2556 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,463 psi | 89% | 2638 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,098 psi | 85% | 2700 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,157 psi | 87% | 2717 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,956 psi | 90% | 2740 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,114 psi | 87% | 2753 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,781 psi | 88% | 2726 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,517 psi | 81% | 2726 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,158 psi | 88% | 2812 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 52,953 psi | 85% | 2733 fps | 99.1% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,514 psi | 75% | 2664 fps | 97.6% |
| Bofors RP5 | <<locked>> | 96% | 54,114 psi | 87% | 2753 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 55,477 psi | 89% | 2651 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,777 psi | 80% | 2677 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 82% | 56,347 psi | 90% | 2671 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,230 psi | 87% | 2700 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 84% | 53,519 psi | 86% | 2657 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 94% | 54,346 psi | 87% | 2697 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 53,345 psi | 86% | 2680 fps | 97.7% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,664 psi | 86% | 2631 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,559 psi | 79% | 2782 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 86% | 54,418 psi | 87% | 2736 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,999 psi | 59% | 1654 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,243 psi | 85% | 2638 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,476 psi | 86% | 2625 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 56,275 psi | 90% | 2690 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,811 psi | 89% | 2684 fps | 98.2% |
| IMR 7828 SSC | <<locked>> | 98% | 55,680 psi | 89% | 2789 fps | 98.7% |
| Lovex S065 | <<locked>> | 86% | 53,925 psi | 86% | 2625 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,521 psi | 89% | 2671 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,503 psi | 83% | 2631 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 53,954 psi | 87% | 2687 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 35,694 psi | 57% | 2484 fps | 96.4% |
| Norma MRP | <<locked>> | 94% | 53,592 psi | 86% | 2772 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 54,694 psi | 88% | 2687 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,420 psi | 90% | 2808 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 53,316 psi | 85% | 2690 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,418 psi | 87% | 2746 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,666 psi | 60% | 1690 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,014 psi | 90% | 2661 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,635 psi | 86% | 2703 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,927 psi | 90% | 2726 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,056 psi | 87% | 2749 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,937 psi | 80% | 2782 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 82% | 53,026 psi | 85% | 2605 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,607 psi | 88% | 2671 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 94% | 55,680 psi | 89% | 2733 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 86% | 55,477 psi | 89% | 2651 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 86% | 53,925 psi | 86% | 2625 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,521 psi | 89% | 2671 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,404 psi | 87% | 2657 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,345 psi | 86% | 2490 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,200 psi | 85% | 2579 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,230 psi | 89% | 2726 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 56,362 psi | 90% | 2648 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,202 psi | 90% | 2667 fps | 98.1% |
| Somchem S365 | <<locked>> | 90% | 54,592 psi | 88% | 2687 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,130 psi | 90% | 2707 fps | 99.8% |
| Vihtavuori N150 | <<locked>> | 84% | 54,143 psi | 87% | 2575 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 52,910 psi | 85% | 2631 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,622 psi | 89% | 2687 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 55,608 psi | 89% | 2684 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 53,940 psi | 86% | 2703 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,650 psi | 86% | 2766 fps | 98% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,142 psi | 85% | 2746 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,782 psi | 89% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,230 psi | 87% | 2700 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,680 psi | 89% | 2858 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,188 psi | 90% | 2703 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% | 31,691 psi | 51% | 2257 fps | 96.4% |
| Accurate 4350 | <<locked>> | 80% | 42,699 psi | 68% | 2493 fps | 99.9% |
| Accurate High Country | <<locked>> | 84% | 39,334 psi | 63% | 2516 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 90% | 45,585 psi | 73% | 2631 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 51,082 psi | 82% | 2569 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,174 psi | 61% | 2425 fps | 95.7% |
| ADI AR 2213 | 47.2 gr | 88% | 41,669 psi | 67% | 2526 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 98% | 42,438 psi | 68% | 2539 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 94% | 33,214 psi | 53% | 2385 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,938 psi | 83% | 2589 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,060 psi | 66% | 2500 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,152 psi | 76% | 2612 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,232 psi | 61% | 2425 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 84% | 36,129 psi | 58% | 2421 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,501 psi | 49% | 2287 fps | 99.1% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,398 psi | 46% | 2244 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 80% | 32,880 psi | 53% | 2405 fps | 98.2% |
| Bofors RP15 | <<locked>> | 88% | 38,435 psi | 62% | 2470 fps | 95.9% |
| Bofors RP30 | <<locked>> | 94% | 38,014 psi | 61% | 2493 fps | 95% |
| Bofors RP5 | <<locked>> | 84% | 36,129 psi | 58% | 2421 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 45,847 psi | 74% | 2497 fps | 98.6% |
| Hodgdon H1000 | <<locked>> | 92% | 38,247 psi | 61% | 2451 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 52,707 psi | 85% | 2621 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,396 psi | 71% | 2539 fps | 98.9% |
| Hodgdon H4350 | <<locked>> | 80% | 47,210 psi | 76% | 2556 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 88% | 44,541 psi | 71% | 2533 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 88% | 43,714 psi | 70% | 2520 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,638 psi | 62% | 2395 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 35,911 psi | 58% | 2487 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 43,482 psi | 70% | 2559 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,659 psi | 44% | 1473 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,495 psi | 67% | 2438 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,253 psi | 76% | 2523 fps | 99.1% |
| IMR 4831 | <<locked>> | 80% | 40,698 psi | 65% | 2444 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,584 psi | 70% | 2480 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 90% | 42,554 psi | 68% | 2556 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 44,918 psi | 72% | 2480 fps | 99.6% |
| Lovex S070 | <<locked>> | 80% | 43,294 psi | 69% | 2470 fps | 98.8% |
| Lovex S071 | <<locked>> | 82% | 29,153 psi | 47% | 2192 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 41,162 psi | 66% | 2467 fps | 96.5% |
| Norma 217 | <<locked>> | 98% | 33,547 psi | 54% | 2428 fps | 95.4% |
| Norma MRP | 44.3 gr | 80% | 33,011 psi | 53% | 2372 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 42,235 psi | 68% | 2487 fps | 99.8% |
| Ramshot Grand | <<locked>> | 88% | 39,537 psi | 63% | 2507 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 40,901 psi | 66% | 2480 fps | 98.8% |
| Ramshot Magnum | <<locked>> | 88% | 35,244 psi | 57% | 2398 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,297 psi | 45% | 1512 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,518 psi | 84% | 2608 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,009 psi | 80% | 2654 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,685 psi | 68% | 2516 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,930 psi | 66% | 2526 fps | 99.6% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 32,692 psi | 52% | 2402 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 80% | 49,864 psi | 80% | 2559 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 39,813 psi | 64% | 2411 fps | 95% |
| Rottweil R 905 | <<locked>> | 82% | 37,565 psi | 60% | 2411 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 45,847 psi | 74% | 2497 fps | 98.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,918 psi | 72% | 2480 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 80% | 43,294 psi | 69% | 2470 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,937 psi | 82% | 2608 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,198 psi | 80% | 2448 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,845 psi | 70% | 2428 fps | 98.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,231 psi | 60% | 2408 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 49,719 psi | 80% | 2552 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 43,250 psi | 69% | 2457 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 38,928 psi | 62% | 2448 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,665 psi | 57% | 2346 fps | 96.1% |
| Vihtavuori N150 | <<locked>> | 80% | 47,674 psi | 76% | 2487 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,482 psi | 70% | 2480 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 84% | 35,041 psi | 56% | 2326 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 42,815 psi | 69% | 2484 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 80% | 34,156 psi | 55% | 2356 fps | 99.1% |
| Vihtavuori N560 | 48.7 gr | 88% | 43,729 psi | 70% | 2592 fps | 95.7% |
| Vihtavuori N565 | <<locked>> | 92% | 40,451 psi | 65% | 2520 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,569 psi | 68% | 2451 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,657 psi | 72% | 2543 fps | 98.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,992 psi | 43% | 2287 fps | 99% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,246 psi | 60% | 2379 fps | 95.5% |
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 77 powders for 6.5 x 64 Brenneke loaded with the .264 | 150gr | Sierra MatchKing. Winchester StaBALL HD delivers the highest muzzle velocity at 2,858 fps; across all powders the maximum-charge window runs from 1,654 fps to 2,858 fps. ADI AR 2217 gives the best case fill at 100 %, and 77 of the 77 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 150.0 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, 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. Vihtavuori N560, Norma MRP, ADI AR 2213 rank at the top here: for 6.5 x 64 Brenneke with the .264 | 150gr | Sierra MatchKing 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.