Load data for 6.5 x 64 Brenneke + .264 | 120gr | Barnes TAC-X

6.5 x 64 Brenneke cartridge drawing
Barnes logo

Load Specifications

Bullet Manufacturer:Barnes
Bullet Weight:120 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 | 120gr | Barnes TAC-X bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Hodgdon Superformance.

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.

A valid access license is required to use the Personalized Load Calculator.

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 2495<<locked>>84%56,275 psi90%2874 fps100%
Accurate 2700<<locked>>84%54,795 psi88%2900 fps98.2%
Accurate 3100ᴾ<<locked>>100%51,866 psi83%2927 fps99.1%
Accurate 4064<<locked>>84%53,185 psi85%2881 fps100%
Accurate 4350<<locked>>92%54,215 psi87%2986 fps99.9%
Accurate High Country<<locked>>98%53,316 psi85%3071 fps96.4%
ADI AR 2206H<<locked>>82%56,101 psi90%2966 fps100%
ADI AR 2208<<locked>>86%53,896 psi86%2917 fps100%
ADI AR 2209<<locked>>98%55,535 psi89%3031 fps97.7%
Alliant Power Pro 2000-MR<<locked>>82%53,084 psi85%3038 fps100%
Alliant Power Pro Varmint<<locked>>98%55,564 psi89%3028 fps97.7%
Alliant Reloder- TS 15.5<<locked>>86%54,708 psi88%2943 fps100%
Alliant Reloder-15<<locked>>84%54,737 psi88%2959 fps100%
Alliant Reloder-16<<locked>>94%55,143 psi88%3048 fps100%
Alliant Reloder-17<<locked>>88%52,576 psi84%3015 fps100%
Alliant Reloder-19<<locked>>98%54,781 psi88%3015 fps97.6%
Alliant Reloder-22ᴾ<<locked>>100%51,793 psi83%3009 fps97.2%
Alliant Reloder-23ᴾ<<locked>>100%48,849 psi78%2946 fps100%
Alliant Reloder-25ᴾ<<locked>>100%42,496 psi68%2858 fps98.2%
Alliant Reloder-26<<locked>>98%52,359 psi84%3087 fps99.9%
Baschieri & Pellagri 107<<locked>>82%56,362 psi90%2986 fps100%
Bofors RP15ᴾ<<locked>>100%47,413 psi76%2927 fps96%
Bofors RP3<<locked>>86%55,434 psi89%2959 fps100%
Bofors RP5ᴾ<<locked>>100%51,793 psi83%3009 fps97.2%
Bofors RP7<<locked>>90%54,752 psi88%2936 fps98.4%
Hodgdon H380<<locked>>86%55,912 psi90%2976 fps99.9%
Hodgdon H414<<locked>>90%53,113 psi85%2986 fps98.7%
Hodgdon H4350<<locked>>88%53,055 psi85%2946 fps97.6%
Hodgdon Hybrid 100V<<locked>>96%55,259 psi89%2966 fps100%
Hodgdon LEVERevolution<<locked>>82%53,359 psi86%2956 fps100%
Hodgdon Superformance<<locked>>90%53,156 psi85%3018 fps98.5%
Hodgdon TrailBossᴾ<<locked>>100%36,143 psi58%1850 fps100%
Hodgdon VARGET<<locked>>82%54,505 psi87%2923 fps100%
IMR 4064<<locked>>84%53,548 psi86%2904 fps100%
IMR 4166 Enduron<<locked>>84%56,188 psi90%2936 fps99%
IMR 4350<<locked>>94%55,927 psi90%2972 fps98.6%
IMR 4451 Enduron<<locked>>88%53,374 psi86%2917 fps98.5%
IMR 4831<<locked>>94%54,578 psi88%2976 fps100%
IMR 4895<<locked>>84%56,188 psi90%2992 fps100%
IMR 4955 Enduron<<locked>>98%55,042 psi88%2956 fps95.9%
Lovex S060<<locked>>82%55,114 psi88%2890 fps100%
Lovex S062<<locked>>84%53,592 psi86%2897 fps100%
Lovex S065<<locked>>90%53,214 psi85%2910 fps99.4%
Lovex S070<<locked>>92%54,273 psi87%2949 fps98.9%
Lovex S071ᴾ<<locked>>100%42,844 psi69%2766 fps97.5%
Norma 201<<locked>>82%54,592 psi88%2904 fps100%
Norma 202<<locked>>82%55,593 psi89%2904 fps100%
Norma 203B<<locked>>84%54,027 psi87%2946 fps100%
Norma 204<<locked>>92%52,939 psi85%2963 fps97%
Norma MRPᴾ<<locked>>100%55,129 psi88%3100 fps99%
Norma URP<<locked>>92%53,026 psi85%2969 fps99.9%
Ramshot Big Game<<locked>>84%55,085 psi88%2976 fps100%
Ramshot Hunter<<locked>>94%55,651 psi89%3031 fps99.5%
Ramshot Magnumᴾ<<locked>>100%45,150 psi72%2864 fps96.2%
ReloadSwiss RS 14ᴾ<<locked>>100%36,840 psi59%1893 fps100%
ReloadSwiss RS 50<<locked>>86%56,043 psi90%2959 fps99.3%
ReloadSwiss RS 52<<locked>>82%55,854 psi90%3031 fps100%
ReloadSwiss RS 60<<locked>>88%55,970 psi90%3068 fps100%
ReloadSwiss RS 62<<locked>>92%54,114 psi87%3009 fps99.9%
ReloadSwiss RS 70<<locked>>92%52,837 psi85%3035 fps99.8%
Rottweil R 902<<locked>>84%55,521 psi89%2910 fps100%
Rottweil R 903<<locked>>88%55,259 psi89%2949 fps100%
Rottweil R 904<<locked>>96%53,563 psi86%2940 fps96.2%
Rottweil R 905<<locked>>98%53,911 psi86%3002 fps97.6%
Rottweil R 907<<locked>>90%54,752 psi88%2936 fps98.4%
Shooters World Long Rifle<<locked>>90%53,214 psi85%2910 fps99.4%
Shooters World Precision<<locked>>84%53,592 psi86%2897 fps100%
Shooters World SW4350<<locked>>92%54,273 psi87%2949 fps98.9%
SNPE Vectan SP 11<<locked>>86%53,577 psi86%2959 fps100%
SNPE Vectan SP 9<<locked>>82%54,665 psi88%2936 fps100%
SNPE Vectan Tubal 3000<<locked>>82%55,564 psi89%2838 fps100%
SNPE Vectan Tubal 5000<<locked>>86%53,113 psi85%2792 fps100%
SNPE Vectan Tubal 7000<<locked>>90%52,895 psi85%2861 fps98.6%
SNPE Vectan Tubal 8000<<locked>>98%53,432 psi86%2995 fps97.5%
Somchem S335<<locked>>82%55,216 psi89%2835 fps100%
Somchem S355<<locked>>88%55,419 psi89%2949 fps100%
Somchem S365<<locked>>96%55,927 psi90%3028 fps100%
Somchem S385<<locked>>98%54,534 psi87%2979 fps98.4%
Vihtavuori N133<<locked>>82%56,130 psi90%2818 fps100%
Vihtavuori N135<<locked>>84%55,767 psi89%2867 fps100%
Vihtavuori N140<<locked>>84%56,130 psi90%2884 fps100%
Vihtavuori N150<<locked>>88%53,229 psi85%2871 fps100%
Vihtavuori N160<<locked>>92%55,376 psi89%2972 fps99.9%
Vihtavuori N165ᴾ<<locked>>100%50,270 psi81%2890 fps97.3%
Vihtavuori N540<<locked>>84%54,201 psi87%2874 fps100%
Vihtavuori N550<<locked>>92%54,389 psi87%2972 fps99.9%
Vihtavuori N555ᴾ<<locked>>100%54,549 psi87%3025 fps100%
Vihtavuori N560ᴾ<<locked>>100%55,521 psi89%3087 fps96.1%
Winchester 6.5 StaBALL<<locked>>92%55,230 psi89%2940 fps100%
Winchester 760<<locked>>90%53,113 psi85%2986 fps98.7%
Winchester StaBALL HDᴾ<<locked>>100%43,976 psi71%2995 fps100%
Winchester StaBALL Match<<locked>>82%54,839 psi88%2943 fps100%
Winchester Supreme 780ᴾ<<locked>>100%54,940 psi88%2972 fps97.6%

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

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%49,197 psi79%2776 fps100%
Accurate 2700<<locked>>80%47,703 psi76%2776 fps96.9%
Accurate 3100<<locked>>90%36,579 psi59%2631 fps95.5%
Accurate 4064<<locked>>80%46,615 psi75%2776 fps100%
Accurate 4350<<locked>>80%35,360 psi57%2621 fps96.9%
Accurate High Country<<locked>>96%49,516 psi79%3002 fps95.5%
ADI AR 2206H<<locked>>80%52,634 psi84%2910 fps100%
ADI AR 2208<<locked>>80%44,701 psi72%2756 fps99.4%
ADI AR 2209<<locked>>92%45,498 psi73%2844 fps95.3%
Alliant Power Pro 2000-MR<<locked>>80%49,327 psi79%2972 fps99.9%
Alliant Power Pro Varmint<<locked>>92%45,600 psi73%2848 fps95.4%
Alliant Reloder- TS 15.5<<locked>>80%45,049 psi72%2779 fps100%
Alliant Reloder-15<<locked>>80%48,138 psi77%2851 fps99.8%
Alliant Reloder-16<<locked>>80%34,809 psi56%2635 fps97%
Alliant Reloder-17<<locked>>80%39,595 psi63%2772 fps99.5%
Alliant Reloder-19<<locked>>92%45,049 psi72%2838 fps95.3%
Alliant Reloder-22<<locked>>96%45,324 psi73%2887 fps95.6%
Alliant Reloder-23<<locked>>84%28,761 psi46%2484 fps96%
Alliant Reloder-25<<locked>>94%34,983 psi56%2671 fps95.4%
Alliant Reloder-2651.3 gr86%33,315 psi53%2671 fps95.6%
Baschieri & Pellagri 107<<locked>>80%52,634 psi84%2927 fps99.9%
Bofors RP15<<locked>>98%44,382 psi71%2867 fps95.1%
Bofors RP3<<locked>>80%45,121 psi72%2789 fps100%
Bofors RP5<<locked>>96%45,324 psi73%2887 fps95.6%
Bofors RP7<<locked>>82%42,540 psi68%2710 fps95.7%
Hodgdon H380<<locked>>80%45,687 psi73%2799 fps98.9%
Hodgdon H414<<locked>>82%40,321 psi65%2736 fps95.7%
Hodgdon H4350<<locked>>82%43,453 psi70%2762 fps95.2%
Hodgdon Hybrid 100V<<locked>>80%32,401 psi52%2533 fps97.7%
Hodgdon LEVERevolution<<locked>>80%49,980 psi80%2900 fps100%
Hodgdon Superformance51.7 gr84%42,482 psi68%2815 fps96%
Hodgdon TrailBoss<<locked>>80%27,021 psi43%1657 fps100%
Hodgdon VARGET<<locked>>80%51,111 psi82%2871 fps100%
IMR 4064<<locked>>80%47,007 psi75%2792 fps99.7%
IMR 4166 Enduron<<locked>>80%49,240 psi79%2818 fps97.9%
IMR 4350<<locked>>84%40,654 psi65%2690 fps95.2%
IMR 4451 Enduron<<locked>>80%41,466 psi66%2687 fps95.9%
IMR 4831<<locked>>80%34,127 psi55%2575 fps96.6%
IMR 4895<<locked>>80%49,371 psi79%2881 fps100%
IMR 4955 Enduron<<locked>>96%51,663 psi83%2897 fps95%
Lovex S060<<locked>>80%51,750 psi83%2838 fps100%
Lovex S062<<locked>>80%47,079 psi75%2789 fps100%
Lovex S065<<locked>>80%38,609 psi62%2628 fps96.6%
Lovex S070<<locked>>82%39,378 psi63%2664 fps95.6%
Lovex S071<<locked>>96%37,521 psi60%2651 fps95.9%
Norma 201<<locked>>80%51,184 psi82%2851 fps100%
Norma 202<<locked>>80%52,141 psi84%2854 fps100%
Norma 203B<<locked>>80%47,471 psi76%2835 fps99.9%
Norma 204<<locked>>88%46,064 psi74%2835 fps95.3%
Norma MRP<<locked>>92%41,510 psi67%2838 fps95.9%
Norma URP<<locked>>80%35,433 psi57%2621 fps96.8%
Ramshot Big Game<<locked>>80%47,848 psi77%2858 fps99.9%
Ramshot Hunter<<locked>>82%36,883 psi59%2664 fps95.5%
Ramshot Magnum<<locked>>98%41,814 psi67%2795 fps95.1%
ReloadSwiss RS 14<<locked>>80%27,485 psi44%1696 fps100%
ReloadSwiss RS 50<<locked>>80%45,803 psi73%2782 fps97.8%
ReloadSwiss RS 52<<locked>>80%52,214 psi84%2976 fps100%
ReloadSwiss RS 60<<locked>>80%42,177 psi68%2835 fps100%
ReloadSwiss RS 62<<locked>>80%35,201 psi56%2638 fps96.5%
ReloadSwiss RS 7047.3 gr80%34,505 psi55%2641 fps95.6%
Rottweil R 902<<locked>>80%48,820 psi78%2802 fps100%
Rottweil R 903<<locked>>80%42,308 psi68%2726 fps99.7%
Rottweil R 904<<locked>>94%50,183 psi80%2881 fps95.3%
Rottweil R 905<<locked>>92%43,976 psi71%2818 fps95.2%
Rottweil R 907<<locked>>82%42,540 psi68%2710 fps95.7%
Shooters World Long Rifle<<locked>>80%38,609 psi62%2628 fps96.6%
Shooters World Precision<<locked>>80%47,079 psi75%2789 fps100%
Shooters World SW4350<<locked>>82%39,378 psi63%2664 fps95.6%
SNPE Vectan SP 11<<locked>>80%43,845 psi70%2789 fps99.6%
SNPE Vectan SP 9<<locked>>80%51,329 psi82%2881 fps100%
SNPE Vectan Tubal 3000<<locked>>80%52,344 psi84%2792 fps100%
SNPE Vectan Tubal 5000<<locked>>80%44,121 psi71%2654 fps100%
SNPE Vectan Tubal 7000<<locked>>80%37,898 psi61%2572 fps95%
SNPE Vectan Tubal 8000<<locked>>92%43,569 psi70%2812 fps95%
Somchem S335<<locked>>80%51,866 psi83%2785 fps100%
Somchem S355<<locked>>80%42,743 psi69%2730 fps99.7%
Somchem S365<<locked>>80%31,966 psi51%2575 fps98.8%
Somchem S385<<locked>>90%41,655 psi67%2740 fps95.4%
Vihtavuori N133<<locked>>80%52,924 psi85%2776 fps100%
Vihtavuori N135<<locked>>80%49,081 psi79%2769 fps100%
Vihtavuori N140<<locked>>80%49,342 psi79%2785 fps100%
Vihtavuori N150<<locked>>80%40,857 psi66%2661 fps99.9%
Vihtavuori N160<<locked>>80%36,869 psi59%2625 fps97.3%
Vihtavuori N165<<locked>>96%43,961 psi70%2772 fps95.7%
Vihtavuori N540<<locked>>80%47,776 psi77%2776 fps100%
Vihtavuori N550<<locked>>80%36,405 psi58%2625 fps96.9%
Vihtavuori N555<<locked>>82%29,515 psi47%2503 fps95.1%
Vihtavuori N560<<locked>>98%51,953 psi83%3025 fps95.3%
Winchester 6.5 StaBALL<<locked>>80%36,245 psi58%2598 fps99%
Winchester 760<<locked>>82%40,567 psi65%2740 fps95.8%
Winchester StaBALL HD<<locked>>86%27,137 psi44%2510 fps95.8%
Winchester StaBALL Match<<locked>>80%51,126 psi82%2884 fps100%
Winchester Supreme 780<<locked>>94%44,338 psi71%2789 fps95%

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 93 powders for 6.5 x 64 Brenneke loaded with the .264 | 120gr | Barnes TAC-X. Norma MRP delivers the highest muzzle velocity at 3,100 fps; across all powders the maximum-charge window runs from 1,850 fps to 3,100 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.264" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for 6.5 x 64 Brenneke with the .264 | 120gr | Barnes TAC-X 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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