Load data for 6.5 x 64 Brenneke + .264 | 139gr | Brenneke TOG

6.5 x 64 Brenneke cartridge drawing
Brenneke logo

Load Specifications

Bullet Manufacturer:Brenneke
Bullet Weight:139 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Case Length (l3):2.54"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:67 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:9.5

Load data in caliber 6.5 x 64 Brenneke with .264 | 139gr | Brenneke TOG bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.

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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?

Max Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>96%52,910 psi85%2753 fps99.9%
Accurate 4350<<locked>>88%54,665 psi88%2789 fps100%
Accurate MAGPRO<<locked>>96%54,897 psi88%2890 fps97.1%
ADI AR 2208<<locked>>82%53,026 psi85%2703 fps100%
ADI AR 2209<<locked>>94%55,361 psi89%2838 fps98.9%
ADI AR 2213<<locked>>96%52,852 psi85%2831 fps97.6%
ADI AR 2225ᴾ<<locked>>100%39,262 psi63%2621 fps97.4%
Alliant Reloder- TS 15.5<<locked>>82%54,070 psi87%2730 fps100%
Alliant Reloder-16<<locked>>90%55,390 psi89%2844 fps100%
Alliant Reloder-17<<locked>>84%52,707 psi85%2805 fps100%
Alliant Reloder-19<<locked>>94%54,911 psi88%2828 fps98.9%
Alliant Reloder-22<<locked>>98%56,014 psi90%2884 fps99.2%
Alliant Reloder-23<<locked>>98%53,417 psi86%2815 fps100%
Alliant Reloder-25ᴾ<<locked>>100%49,356 psi79%2812 fps100%
Alliant Reloder-26<<locked>>94%53,258 psi85%2894 fps100%
Bofors RP15ᴾ<<locked>>100%55,158 psi88%2871 fps99%
Bofors RP3<<locked>>82%55,201 psi89%2746 fps100%
Bofors RP30ᴾ<<locked>>100%45,281 psi73%2736 fps96.6%
Bofors RP5<<locked>>98%56,014 psi90%2884 fps99.2%
Bofors RP7<<locked>>86%54,259 psi87%2740 fps99.3%
Hodgdon H1000ᴾ<<locked>>100%48,675 psi78%2753 fps97.5%
Hodgdon H380<<locked>>82%55,027 psi88%2759 fps100%
Hodgdon H414<<locked>>88%56,376 psi90%2838 fps99.8%
Hodgdon H4350<<locked>>86%55,927 psi90%2799 fps99.2%
Hodgdon H4831<<locked>>94%53,171 psi85%2779 fps97%
Hodgdon H4831 SC<<locked>>96%55,492 psi89%2815 fps97.4%
Hodgdon Hybrid 100V<<locked>>92%55,637 psi89%2769 fps100%
Hodgdon Retumboᴾ<<locked>>100%48,385 psi78%2858 fps98.8%
Hodgdon Superformance<<locked>>86%52,808 psi85%2818 fps99.4%
Hodgdon TrailBossᴾ<<locked>>100%36,753 psi59%1726 fps100%
IMR 4064<<locked>>82%55,811 psi89%2736 fps100%
IMR 4350<<locked>>90%55,434 psi89%2772 fps99.5%
IMR 4451 Enduron<<locked>>86%55,724 psi89%2762 fps99.7%
IMR 4831<<locked>>90%54,839 psi88%2779 fps100%
IMR 4955 Enduron<<locked>>94%54,578 psi88%2766 fps97.4%
IMR 7828 SSC<<locked>>98%54,244 psi87%2867 fps98%
Lovex S062<<locked>>82%56,188 psi90%2730 fps100%
Lovex S065<<locked>>88%56,043 psi90%2759 fps100%
Lovex S070<<locked>>88%53,998 psi87%2753 fps99.7%
Lovex S071ᴾ<<locked>>100%50,357 psi81%2713 fps99.7%
Norma 204<<locked>>90%56,376 psi90%2828 fps98.9%
Norma MRP<<locked>>96%56,028 psi90%2913 fps99.8%
Norma URP<<locked>>88%53,098 psi85%2769 fps100%
Ramshot Grand<<locked>>98%54,650 psi88%2884 fps98.3%
Ramshot Hunter<<locked>>90%55,593 psi89%2828 fps100%
Ramshot Magnumᴾ<<locked>>100%52,765 psi85%2825 fps99.3%
ReloadSwiss RS 14ᴾ<<locked>>100%37,623 psi60%1768 fps100%
ReloadSwiss RS 50<<locked>>82%55,013 psi88%2749 fps99.8%
ReloadSwiss RS 60<<locked>>84%55,941 psi90%2848 fps100%
ReloadSwiss RS 62<<locked>>88%54,505 psi87%2812 fps100%
ReloadSwiss RS 70<<locked>>88%52,591 psi84%2835 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%48,312 psi77%2851 fps99.5%
Rottweil R 903<<locked>>84%55,376 psi89%2746 fps100%
Rottweil R 904<<locked>>92%53,505 psi86%2756 fps97.7%
Rottweil R 905<<locked>>94%54,259 psi87%2815 fps98.9%
Rottweil R 907<<locked>>86%54,259 psi87%2740 fps99.3%
Shooters World Long Rifle<<locked>>88%56,043 psi90%2759 fps100%
Shooters World Precision<<locked>>82%56,188 psi90%2730 fps100%
Shooters World SW4350<<locked>>88%53,998 psi87%2753 fps99.7%
SNPE Vectan SP 11<<locked>>82%53,026 psi85%2746 fps100%
SNPE Vectan Tubal 5000<<locked>>84%55,782 psi89%2625 fps100%
SNPE Vectan Tubal 7000<<locked>>88%55,651 psi89%2717 fps99.7%
SNPE Vectan Tubal 8000<<locked>>94%53,838 psi86%2812 fps98.9%
Somchem S355<<locked>>84%55,172 psi88%2740 fps100%
Somchem S361<<locked>>92%54,998 psi88%2749 fps97.3%
Somchem S365<<locked>>90%53,026 psi85%2779 fps100%
Somchem S385<<locked>>94%54,694 psi88%2789 fps99.4%
Vihtavuori N150<<locked>>84%52,924 psi85%2667 fps100%
Vihtavuori N160<<locked>>88%55,201 psi89%2769 fps100%
Vihtavuori N165<<locked>>98%54,230 psi87%2769 fps99.2%
Vihtavuori N550<<locked>>88%54,186 psi87%2772 fps100%
Vihtavuori N555<<locked>>96%55,724 psi89%2838 fps100%
Vihtavuori N560<<locked>>96%56,086 psi90%2907 fps97.9%
Vihtavuori N565ᴾ<<locked>>100%51,692 psi83%2822 fps97.3%
Winchester 6.5 StaBALL<<locked>>88%54,375 psi87%2730 fps100%
Winchester 760<<locked>>86%53,229 psi85%2789 fps99.6%
Winchester StaBALL HDᴾ<<locked>>100%53,679 psi86%2943 fps100%
Winchester Supreme 780<<locked>>96%54,795 psi88%2785 fps98.8%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>80%30,850 psi49%2320 fps95.1%
Accurate 4350<<locked>>80%41,684 psi67%2575 fps99.5%
Accurate MAGPRO<<locked>>92%47,747 psi77%2766 fps95.3%
ADI AR 2208<<locked>>80%50,024 psi80%2657 fps100%
ADI AR 2209<<locked>>84%39,842 psi64%2552 fps95.5%
ADI AR 2213<<locked>>90%43,337 psi69%2654 fps95%
ADI AR 2225<<locked>>96%34,606 psi55%2503 fps95.3%
Alliant Reloder- TS 15.5<<locked>>80%51,053 psi82%2684 fps100%
Alliant Reloder-16<<locked>>80%39,972 psi64%2579 fps99.6%
Alliant Reloder-17<<locked>>80%45,774 psi73%2697 fps100%
Alliant Reloder-19<<locked>>84%39,784 psi64%2549 fps95.6%
Alliant Reloder-22<<locked>>88%40,234 psi65%2602 fps95.9%
Alliant Reloder-23<<locked>>80%29,602 psi47%2346 fps98.3%
Alliant Reloder-25<<locked>>86%31,444 psi50%2415 fps96%
Alliant Reloder-2647.3 gr80%31,937 psi51%2467 fps97.1%
Bofors RP15<<locked>>90%39,697 psi64%2589 fps95.5%
Bofors RP3<<locked>>80%51,401 psi82%2694 fps100%
Bofors RP30<<locked>>98%42,380 psi68%2677 fps95.7%
Bofors RP5<<locked>>88%40,234 psi65%2602 fps95.9%
Bofors RP7<<locked>>80%45,063 psi72%2582 fps98%
Hodgdon H1000<<locked>>96%42,583 psi68%2635 fps95.7%
Hodgdon H380<<locked>>80%51,634 psi83%2707 fps100%
Hodgdon H414<<locked>>80%43,323 psi69%2618 fps98.1%
Hodgdon H4350<<locked>>80%46,006 psi74%2631 fps97.6%
Hodgdon H4831<<locked>>90%46,311 psi74%2661 fps95.3%
Hodgdon H4831 SC<<locked>>90%45,484 psi73%2644 fps95.1%
Hodgdon Hybrid 100V<<locked>>80%37,594 psi60%2470 fps99.8%
Hodgdon Retumbo<<locked>>92%37,130 psi60%2602 fps95.1%
Hodgdon Superformance<<locked>>80%42,467 psi68%2635 fps97.7%
Hodgdon TrailBoss<<locked>>80%27,499 psi44%1542 fps100%
IMR 4064<<locked>>80%52,663 psi84%2687 fps100%
IMR 4350<<locked>>80%40,466 psi65%2510 fps96.9%
IMR 4451 Enduron<<locked>>80%46,195 psi74%2605 fps98.6%
IMR 4831<<locked>>80%39,798 psi64%2523 fps99.3%
IMR 4955 Enduron<<locked>>88%45,237 psi73%2605 fps95.2%
IMR 7828 SSC<<locked>>92%44,411 psi71%2690 fps95.6%
Lovex S062<<locked>>80%53,055 psi85%2684 fps100%
Lovex S065<<locked>>80%43,874 psi70%2559 fps99.1%
Lovex S070<<locked>>80%42,206 psi68%2546 fps98%
Lovex S071<<locked>>86%32,184 psi52%2356 fps95.7%
Norma 204<<locked>>80%40,147 psi64%2539 fps95.4%
Norma MRP47 gr82%34,272 psi55%2493 fps95.1%
Norma URP<<locked>>80%41,089 psi66%2562 fps99.4%
Ramshot Grand<<locked>>92%44,150 psi71%2697 fps95.9%
Ramshot Hunter<<locked>>80%39,842 psi64%2552 fps98.1%
Ramshot Magnum<<locked>>90%36,622 psi59%2516 fps95.3%
ReloadSwiss RS 14<<locked>>80%28,108 psi45%1578 fps100%
ReloadSwiss RS 50<<locked>>80%51,372 psi82%2694 fps99.6%
ReloadSwiss RS 60<<locked>>80%48,588 psi78%2743 fps100%
ReloadSwiss RS 62<<locked>>80%41,452 psi66%2592 fps99.4%
ReloadSwiss RS 70<<locked>>80%39,697 psi64%2598 fps99%
ReloadSwiss RS 76<<locked>>92%36,477 psi58%2585 fps96.1%
Rottweil R 903<<locked>>80%48,617 psi78%2644 fps100%
Rottweil R 904<<locked>>86%44,092 psi71%2592 fps95.6%
Rottweil R 905<<locked>>84%38,899 psi62%2533 fps95.5%
Rottweil R 907<<locked>>80%45,063 psi72%2582 fps98%
Shooters World Long Rifle<<locked>>80%43,874 psi70%2559 fps99.1%
Shooters World Precision<<locked>>80%53,055 psi85%2684 fps100%
Shooters World SW4350<<locked>>80%42,206 psi68%2546 fps98%
SNPE Vectan SP 11<<locked>>80%49,763 psi80%2697 fps100%
SNPE Vectan Tubal 5000<<locked>>80%49,298 psi79%2539 fps100%
SNPE Vectan Tubal 7000<<locked>>80%43,033 psi69%2507 fps98.1%
SNPE Vectan Tubal 8000<<locked>>84%38,551 psi62%2526 fps95.3%
Somchem S355<<locked>>80%48,602 psi78%2638 fps100%
Somchem S361<<locked>>86%45,136 psi72%2585 fps95%
Somchem S365<<locked>>80%37,666 psi60%2520 fps100%
Somchem S385<<locked>>82%37,159 psi60%2467 fps95.8%
Vihtavuori N150<<locked>>80%46,499 psi75%2569 fps100%
Vihtavuori N160<<locked>>80%42,540 psi68%2562 fps99.6%
Vihtavuori N165<<locked>>86%36,564 psi59%2448 fps95.1%
Vihtavuori N550<<locked>>80%41,785 psi67%2559 fps99.4%
Vihtavuori N555<<locked>>80%33,069 psi53%2421 fps98.3%
Vihtavuori N56051.6 gr90%45,498 psi73%2723 fps95.4%
Vihtavuori N565<<locked>>96%45,034 psi72%2703 fps95.6%
Winchester 6.5 StaBALL<<locked>>80%41,350 psi66%2526 fps100%
Winchester 760<<locked>>80%43,569 psi70%2621 fps98.2%
Winchester StaBALL HD<<locked>>80%26,208 psi42%2336 fps97.8%
Winchester Supreme 780<<locked>>86%38,624 psi62%2500 fps95.1%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 84 powders for 6.5 x 64 Brenneke loaded with the .264 | 139gr | Brenneke TOG. Winchester StaBALL HD delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,726 fps to 2,943 fps. ADI AR 2217 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.264" calls for a 1:9.5 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 6.5 x 64 Brenneke with the .264 | 139gr | Brenneke TOG they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, Norma 217, ReloadSwiss RS 80 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.

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