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

6.5 x 64 Brenneke cartridge drawing
Norma logo

Load Specifications

Bullet Manufacturer:Norma
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:1:11.0

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

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"

PowderChargeFRMaxP%V(0)z
Accurate 3100<<locked>>96%54,346 psi87%2779 fps99.9%
Accurate 4350<<locked>>88%56,101 psi90%2818 fps100%
Accurate High Country<<locked>>94%55,767 psi89%2923 fps98.5%
Accurate MAGPRO<<locked>>94%52,707 psi85%2861 fps96.7%
ADI AR 2208<<locked>>82%54,389 psi87%2733 fps100%
ADI AR 2209<<locked>>92%53,258 psi85%2812 fps98.8%
ADI AR 2213<<locked>>96%54,462 psi87%2867 fps98.1%
ADI AR 2217ᴾ<<locked>>100%45,629 psi73%2700 fps96.3%
ADI AR 2225ᴾ<<locked>>100%40,422 psi65%2657 fps98%
Alliant Power Pro Varmint<<locked>>92%53,606 psi86%2808 fps98.8%
Alliant Reloder- TS 15.5<<locked>>82%55,506 psi89%2753 fps100%
Alliant Reloder-16<<locked>>88%53,272 psi85%2818 fps100%
Alliant Reloder-17<<locked>>84%54,433 psi87%2835 fps100%
Alliant Reloder-19<<locked>>94%56,347 psi90%2858 fps99.2%
Alliant Reloder-22<<locked>>96%54,157 psi87%2864 fps99%
Alliant Reloder-23<<locked>>98%54,969 psi88%2838 fps100%
Alliant Reloder-25ᴾ<<locked>>100%50,966 psi82%2841 fps100%
Alliant Reloder-26<<locked>>94%55,521 psi89%2930 fps100%
Bofors RP15<<locked>>98%53,026 psi85%2841 fps98.8%
Bofors RP3<<locked>>82%56,333 psi90%2769 fps100%
Bofors RP30ᴾ<<locked>>100%46,891 psi75%2772 fps97.2%
Bofors RP5<<locked>>96%54,157 psi87%2864 fps99%
Bofors RP7<<locked>>86%55,477 psi89%2766 fps99.5%
Hodgdon H1000ᴾ<<locked>>100%50,038 psi80%2789 fps98%
Hodgdon H380<<locked>>82%56,391 psi90%2789 fps100%
Hodgdon H414<<locked>>86%54,143 psi87%2812 fps99.7%
Hodgdon H4350<<locked>>84%53,780 psi86%2776 fps99%
Hodgdon H4831<<locked>>94%54,534 psi87%2808 fps97.4%
Hodgdon H4831 SC<<locked>>94%53,592 psi86%2795 fps97.2%
Hodgdon Hybrid 100V<<locked>>90%53,751 psi86%2746 fps100%
Hodgdon Retumboᴾ<<locked>>100%49,879 psi80%2894 fps99.2%
Hodgdon Superformance<<locked>>86%54,578 psi88%2851 fps99.6%
Hodgdon TrailBossᴾ<<locked>>100%36,898 psi59%1739 fps100%
IMR 4350<<locked>>88%53,243 psi85%2749 fps99.4%
IMR 4451 Enduron<<locked>>84%53,592 psi86%2740 fps99.6%
IMR 4831<<locked>>90%56,434 psi90%2805 fps100%
IMR 4955 Enduron<<locked>>94%55,854 psi90%2795 fps97.8%
IMR 7828 SSC<<locked>>98%55,912 psi90%2904 fps98.4%
Lovex S065<<locked>>86%53,925 psi86%2733 fps100%
Lovex S070<<locked>>88%55,535 psi89%2782 fps99.8%
Lovex S071ᴾ<<locked>>100%51,837 psi83%2740 fps99.8%
Norma 204<<locked>>88%53,969 psi87%2799 fps98.7%
Norma MRP<<locked>>94%53,911 psi86%2887 fps99.7%
Norma URP<<locked>>88%54,723 psi88%2802 fps100%
Ramshot Grand<<locked>>96%52,620 psi84%2861 fps98.2%
Ramshot Hunter<<locked>>88%53,330 psi86%2802 fps99.9%
Ramshot Magnumᴾ<<locked>>100%54,607 psi88%2858 fps99.5%
ReloadSwiss RS 14ᴾ<<locked>>100%37,768 psi61%1781 fps100%
ReloadSwiss RS 50<<locked>>82%56,246 psi90%2776 fps99.9%
ReloadSwiss RS 60<<locked>>82%53,838 psi86%2822 fps100%
ReloadSwiss RS 62<<locked>>88%56,086 psi90%2838 fps100%
ReloadSwiss RS 70<<locked>>88%54,114 psi87%2864 fps100%
ReloadSwiss RS 76ᴾ<<locked>>100%50,227 psi81%2890 fps99.8%
Rottweil R 903<<locked>>82%53,011 psi85%2717 fps100%
Rottweil R 904<<locked>>92%54,592 psi88%2782 fps98.1%
Rottweil R 905<<locked>>94%55,753 psi89%2844 fps99.2%
Rottweil R 907<<locked>>86%55,477 psi89%2766 fps99.5%
Shooters World Long Rifle<<locked>>86%53,925 psi86%2733 fps100%
Shooters World SW4350<<locked>>88%55,535 psi89%2782 fps99.8%
SNPE Vectan SP 11<<locked>>82%54,360 psi87%2772 fps100%
SNPE Vectan Tubal 5000<<locked>>82%53,388 psi86%2602 fps100%
SNPE Vectan Tubal 7000<<locked>>86%53,374 psi86%2690 fps99.6%
SNPE Vectan Tubal 8000<<locked>>94%55,303 psi89%2841 fps99.1%
Somchem S355<<locked>>84%56,246 psi90%2759 fps100%
Somchem S361<<locked>>92%56,115 psi90%2776 fps97.6%
Somchem S365<<locked>>90%54,723 psi88%2802 fps100%
Somchem S385<<locked>>94%56,405 psi90%2822 fps99.6%
Vihtavuori N150<<locked>>84%53,911 psi86%2687 fps100%
Vihtavuori N160<<locked>>86%53,040 psi85%2743 fps100%
Vihtavuori N165<<locked>>98%55,535 psi89%2795 fps99.4%
Vihtavuori N550<<locked>>88%55,695 psi89%2799 fps100%
Vihtavuori N555<<locked>>94%54,172 psi87%2818 fps100%
Vihtavuori N560<<locked>>94%53,882 psi86%2877 fps97.6%
Vihtavuori N565ᴾ<<locked>>100%53,301 psi85%2851 fps97.7%
Winchester 6.5 StaBALL<<locked>>88%56,043 psi90%2756 fps100%
Winchester 760<<locked>>86%54,447 psi87%2815 fps99.7%
Winchester StaBALL HDᴾ<<locked>>100%55,854 psi90%2972 fps100%
Winchester Supreme 780<<locked>>94%52,562 psi84%2759 fps98.6%

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%31,749 psi51%2346 fps95.7%
Accurate 4350<<locked>>80%42,786 psi69%2598 fps99.7%
Accurate High Country<<locked>>86%42,235 psi68%2677 fps95.4%
Accurate MAGPRO<<locked>>92%49,124 psi79%2799 fps95.9%
ADI AR 2208<<locked>>80%51,097 psi82%2680 fps100%
ADI AR 2209<<locked>>82%38,377 psi62%2526 fps95.1%
ADI AR 2213<<locked>>90%44,599 psi72%2687 fps95.7%
ADI AR 2217<<locked>>98%42,496 psi68%2638 fps95.2%
ADI AR 2225<<locked>>96%35,505 psi57%2536 fps96%
Alliant Power Pro Varmint<<locked>>82%38,551 psi62%2526 fps95.2%
Alliant Reloder- TS 15.5<<locked>>80%52,170 psi84%2703 fps100%
Alliant Reloder-16<<locked>>80%41,046 psi66%2605 fps99.8%
Alliant Reloder-17<<locked>>80%47,181 psi76%2723 fps100%
Alliant Reloder-19<<locked>>82%38,174 psi61%2520 fps95.1%
Alliant Reloder-22<<locked>>86%38,754 psi62%2572 fps95.5%
Alliant Reloder-23<<locked>>80%30,472 psi49%2375 fps98.7%
Alliant Reloder-25<<locked>>84%30,371 psi49%2388 fps95.6%
Alliant Reloder-2648.5 gr80%32,982 psi53%2497 fps97.6%
Bofors RP15<<locked>>88%38,464 psi62%2566 fps95.2%
Bofors RP3<<locked>>80%52,866 psi85%2720 fps100%
Bofors RP30<<locked>>96%40,872 psi66%2651 fps95.4%
Bofors RP5<<locked>>86%38,754 psi62%2572 fps95.5%
Bofors RP7<<locked>>80%46,079 psi74%2605 fps98.3%
Hodgdon H1000<<locked>>94%40,915 psi66%2608 fps95.4%
Hodgdon H380<<locked>>80%52,982 psi85%2736 fps100%
Hodgdon H414<<locked>>80%44,570 psi71%2648 fps98.5%
Hodgdon H4350<<locked>>80%47,253 psi76%2661 fps98%
Hodgdon H4831<<locked>>88%44,643 psi72%2635 fps95%
Hodgdon H4831 SC<<locked>>90%46,818 psi75%2677 fps95.7%
Hodgdon Hybrid 100V<<locked>>80%38,682 psi62%2497 fps99.9%
Hodgdon Retumbo<<locked>>92%38,247 psi61%2641 fps95.9%
Hodgdon Superformance<<locked>>80%43,642 psi70%2664 fps98.1%
Hodgdon TrailBoss<<locked>>80%27,630 psi44%1552 fps100%
IMR 4350<<locked>>80%41,597 psi67%2539 fps97.4%
IMR 4451 Enduron<<locked>>80%47,442 psi76%2635 fps98.9%
IMR 4831<<locked>>80%40,814 psi65%2549 fps99.5%
IMR 4955 Enduron<<locked>>88%46,224 psi74%2631 fps95.7%
IMR 7828 SSC<<locked>>90%42,844 psi69%2664 fps95.2%
Lovex S065<<locked>>80%44,860 psi72%2582 fps99.3%
Lovex S070<<locked>>80%43,192 psi69%2569 fps98.4%
Lovex S071<<locked>>84%31,169 psi50%2333 fps95.4%
Norma 204<<locked>>80%41,321 psi66%2569 fps96%
Norma MRP48.2 gr82%35,302 psi57%2520 fps95.7%
Norma URP<<locked>>80%42,134 psi68%2589 fps99.6%
Ramshot Grand<<locked>>90%42,453 psi68%2667 fps95.5%
Ramshot Hunter<<locked>>80%41,002 psi66%2582 fps98.4%
Ramshot Magnum<<locked>>88%35,317 psi57%2490 fps95%
ReloadSwiss RS 14<<locked>>80%28,224 psi45%1591 fps100%
ReloadSwiss RS 50<<locked>>80%52,649 psi84%2720 fps99.8%
ReloadSwiss RS 60<<locked>>80%50,038 psi80%2769 fps100%
ReloadSwiss RS 62<<locked>>80%42,699 psi68%2621 fps99.6%
ReloadSwiss RS 70<<locked>>80%40,814 psi65%2628 fps99.3%
ReloadSwiss RS 76<<locked>>90%35,172 psi56%2556 fps95.7%
Rottweil R 903<<locked>>80%49,748 psi80%2667 fps100%
Rottweil R 904<<locked>>84%42,453 psi68%2566 fps95.2%
Rottweil R 905<<locked>>82%37,521 psi60%2507 fps95.1%
Rottweil R 907<<locked>>80%46,079 psi74%2605 fps98.3%
Shooters World Long Rifle<<locked>>80%44,860 psi72%2582 fps99.3%
Shooters World SW4350<<locked>>80%43,192 psi69%2569 fps98.4%
SNPE Vectan SP 11<<locked>>80%51,111 psi82%2723 fps100%
SNPE Vectan Tubal 5000<<locked>>80%50,430 psi81%2562 fps100%
SNPE Vectan Tubal 7000<<locked>>80%43,947 psi70%2533 fps98.4%
SNPE Vectan Tubal 8000<<locked>>82%37,188 psi60%2503 fps95%
Somchem S355<<locked>>80%49,705 psi80%2664 fps100%
Somchem S361<<locked>>86%46,035 psi74%2608 fps95.4%
Somchem S365<<locked>>80%39,015 psi63%2549 fps100%
Somchem S385<<locked>>80%35,679 psi57%2438 fps95.4%
Vihtavuori N150<<locked>>80%47,572 psi76%2592 fps100%
Vihtavuori N160<<locked>>80%43,555 psi70%2585 fps99.7%
Vihtavuori N165<<locked>>86%37,637 psi60%2477 fps95.7%
Vihtavuori N550<<locked>>80%42,989 psi69%2589 fps99.6%
Vihtavuori N555<<locked>>80%34,142 psi55%2448 fps98.6%
Vihtavuori N56051.8 gr88%43,947 psi70%2697 fps95.1%
Vihtavuori N565<<locked>>94%43,424 psi70%2677 fps95.3%
Winchester 6.5 StaBALL<<locked>>80%42,453 psi68%2549 fps100%
Winchester 760<<locked>>80%44,570 psi71%2648 fps98.5%
Winchester StaBALL HD<<locked>>80%27,079 psi43%2372 fps98.5%
Winchester Supreme 780<<locked>>86%39,914 psi64%2530 fps95.7%

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 78 powders for 6.5 x 64 Brenneke loaded with the .264 | 139gr | Norma VULKAN. Winchester StaBALL HD delivers the highest muzzle velocity at 2,972 fps; across all powders the maximum-charge window runs from 1,739 fps to 2,972 fps. ADI AR 2217 gives the best case fill at 100 %, and 78 of the 78 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 139.0 gr projectile in 0.264" calls for a 1:11.0 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. Norma MRP, Vihtavuori N560, Alliant Reloder-26 rank at the top here: for 6.5 x 64 Brenneke with the .264 | 139gr | Norma VULKAN 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.

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