Load data for 7 x 64 Brenneke + .284 | 150gr | Barnes X BT

7 x 64 Brenneke cartridge drawing
Barnes logo

Load Specifications

Bullet Manufacturer:Barnes
Bullet Weight:150 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.519"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:66 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:10.5

Load data in caliber 7 x 64 Brenneke with .284 | 150gr | Barnes X BT bullet and 88 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-16 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.

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Max Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>82%51,401 psi85%2625 fps100%
Accurate 2700<<locked>>84%51,488 psi86%2648 fps96.8%
Accurate 3100ᴾ<<locked>>100%47,630 psi79%2680 fps97.8%
Accurate 4064<<locked>>84%51,285 psi85%2671 fps100%
Accurate 4350<<locked>>94%53,243 psi88%2789 fps99.7%
ADI AR 2206H<<locked>>82%52,895 psi88%2723 fps100%
ADI AR 2208<<locked>>88%53,621 psi89%2723 fps99.9%
ADI AR 2209ᴾ<<locked>>100%54,056 psi90%2812 fps96.4%
Alliant Power Pro 2000-MR<<locked>>84%52,199 psi87%2838 fps99.8%
Alliant Reloder- TS 15.5<<locked>>88%54,244 psi90%2749 fps100%
Alliant Reloder-15<<locked>>84%51,547 psi86%2723 fps99.8%
Alliant Reloder-16<<locked>>96%53,679 psi89%2838 fps99.9%
Alliant Reloder-17<<locked>>90%51,372 psi85%2818 fps100%
Alliant Reloder-19ᴾ<<locked>>100%53,113 psi88%2802 fps96.4%
Alliant Reloder-23ᴾ<<locked>>100%44,686 psi74%2707 fps99.8%
Alliant Reloder-25ᴾ<<locked>>100%39,523 psi66%2608 fps96.2%
Alliant Reloder-26ᴾ<<locked>>100%49,951 psi83%2871 fps99.4%
Baschieri & Pellagri 107<<locked>>82%52,330 psi87%2736 fps99.7%
Bofors RP3<<locked>>86%51,938 psi86%2723 fps100%
Bofors RP7<<locked>>90%51,750 psi86%2690 fps97.1%
Hodgdon H380<<locked>>86%52,344 psi87%2730 fps99.3%
Hodgdon H414<<locked>>92%52,011 psi86%2782 fps97.9%
Hodgdon H4350<<locked>>90%52,402 psi87%2743 fps96.6%
Hodgdon H4895<<locked>>82%53,403 psi89%2733 fps100%
Hodgdon Hybrid 100V<<locked>>98%53,824 psi89%2769 fps100%
Hodgdon LEVERevolution<<locked>>84%52,997 psi88%2769 fps100%
Hodgdon Superformance<<locked>>92%51,547 psi86%2805 fps97.4%
Hodgdon TrailBossᴾ<<locked>>100%36,332 psi60%1693 fps100%
Hodgdon VARGET<<locked>>84%54,143 psi90%2733 fps100%
IMR 3031<<locked>>82%53,824 psi89%2720 fps100%
IMR 4064<<locked>>86%53,316 psi89%2710 fps99.9%
IMR 4166 Enduron<<locked>>84%52,852 psi88%2684 fps97.8%
IMR 4350<<locked>>94%51,721 psi86%2717 fps97.2%
IMR 4451 Enduron<<locked>>90%52,997 psi88%2717 fps97.8%
IMR 4831<<locked>>96%53,693 psi89%2785 fps99.7%
IMR 4895<<locked>>84%52,837 psi88%2753 fps100%
Lovex D073.6<<locked>>82%53,447 psi89%2710 fps100%
Lovex S060<<locked>>82%52,257 psi87%2654 fps99.9%
Lovex S062<<locked>>86%53,809 psi89%2710 fps100%
Lovex S065<<locked>>92%52,968 psi88%2717 fps98.9%
Lovex S070<<locked>>94%53,969 psi90%2753 fps98.2%
Lovex S071ᴾ<<locked>>100%40,016 psi66%2543 fps96%
Norma 201<<locked>>82%52,359 psi87%2677 fps100%
Norma 202<<locked>>82%52,388 psi87%2674 fps100%
Norma 203B<<locked>>86%53,940 psi90%2759 fps100%
Norma 204<<locked>>94%52,040 psi86%2759 fps95.9%
Norma MRPᴾ<<locked>>100%49,603 psi82%2825 fps97.3%
Norma URP<<locked>>94%51,938 psi86%2776 fps99.5%
Ramshot Big Game<<locked>>86%54,201 psi90%2782 fps100%
Ramshot Hunter<<locked>>96%53,766 psi89%2818 fps98.8%
ReloadSwiss RS 14ᴾ<<locked>>100%36,869 psi61%1732 fps100%
ReloadSwiss RS 50<<locked>>86%52,417 psi87%2710 fps98.3%
ReloadSwiss RS 52<<locked>>82%51,547 psi86%2779 fps99.8%
ReloadSwiss RS 60<<locked>>88%51,126 psi85%2818 fps100%
ReloadSwiss RS 62<<locked>>94%52,591 psi87%2808 fps99.5%
ReloadSwiss RS 70<<locked>>94%51,532 psi86%2828 fps99.3%
Rottweil R 902<<locked>>84%52,939 psi88%2680 fps100%
Rottweil R 903<<locked>>88%52,025 psi86%2717 fps100%
Rottweil R 905ᴾ<<locked>>100%52,112 psi87%2785 fps96.4%
Rottweil R 907<<locked>>90%51,750 psi86%2690 fps97.1%
Shooters World Long Rifle<<locked>>92%52,968 psi88%2717 fps98.9%
Shooters World Match Rifle<<locked>>82%53,447 psi89%2710 fps100%
Shooters World Precision<<locked>>86%53,809 psi89%2710 fps100%
Shooters World SW4350<<locked>>94%53,969 psi90%2753 fps98.2%
SNPE Vectan SP 11<<locked>>88%52,765 psi88%2766 fps100%
SNPE Vectan SP 7<<locked>>82%54,099 psi90%2726 fps99.4%
SNPE Vectan SP 9<<locked>>84%54,447 psi90%2746 fps100%
SNPE Vectan Tubal 3000<<locked>>82%53,069 psi88%2612 fps100%
SNPE Vectan Tubal 5000<<locked>>88%53,374 psi89%2615 fps100%
SNPE Vectan Tubal 7000<<locked>>92%52,939 psi88%2671 fps97.8%
SNPE Vectan Tubal 8000ᴾ<<locked>>100%51,619 psi86%2782 fps96.3%
Somchem S335<<locked>>82%52,837 psi88%2615 fps100%
Somchem S341<<locked>>82%53,301 psi89%2713 fps100%
Somchem S355<<locked>>88%52,185 psi87%2713 fps100%
Somchem S365<<locked>>98%53,708 psi89%2831 fps100%
Somchem S385ᴾ<<locked>>100%53,301 psi89%2772 fps97.4%
Vihtavuori N133<<locked>>82%53,316 psi89%2598 fps100%
Vihtavuori N135<<locked>>84%52,692 psi88%2644 fps100%
Vihtavuori N140<<locked>>84%52,765 psi88%2654 fps100%
Vihtavuori N150<<locked>>90%52,968 psi88%2690 fps100%
Vihtavuori N160<<locked>>94%53,969 psi90%2766 fps99.6%
Vihtavuori N540<<locked>>86%54,273 psi90%2697 fps100%
Vihtavuori N550<<locked>>94%53,345 psi89%2776 fps99.5%
Vihtavuori N555ᴾ<<locked>>100%49,690 psi83%2782 fps99.7%
Winchester 6.5 StaBALL<<locked>>94%53,737 psi89%2743 fps100%
Winchester 760<<locked>>92%52,011 psi86%2782 fps97.9%
Winchester StaBALL HDᴾ<<locked>>100%40,335 psi67%2733 fps99.9%
Winchester StaBALL Match<<locked>>82%51,256 psi85%2707 fps100%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%48,515 psi81%2582 fps100%
Accurate 2700<<locked>>80%45,527 psi76%2546 fps95.4%
Accurate 3100<<locked>>92%37,057 psi62%2480 fps95%
Accurate 4064<<locked>>80%45,759 psi76%2582 fps100%
Accurate 4350<<locked>>80%34,214 psi57%2431 fps96%
ADI AR 2206H<<locked>>80%50,009 psi83%2677 fps99.8%
ADI AR 2208<<locked>>80%42,670 psi71%2536 fps98.7%
ADI AR 2209<<locked>>98%50,923 psi85%2759 fps95.7%
Alliant Power Pro 2000-MR<<locked>>80%45,629 psi76%2720 fps99.2%
Alliant Reloder- TS 15.5<<locked>>80%42,859 psi71%2562 fps99.6%
Alliant Reloder-15<<locked>>80%45,774 psi76%2621 fps99.3%
Alliant Reloder-1640.9 gr80%33,620 psi56%2428 fps95.8%
Alliant Reloder-17<<locked>>80%37,246 psi62%2546 fps98.7%
Alliant Reloder-19<<locked>>98%49,893 psi83%2746 fps95.7%
Alliant Reloder-23<<locked>>86%29,950 psi50%2359 fps95.9%
Alliant Reloder-25<<locked>>98%37,376 psi62%2556 fps95.3%
Alliant Reloder-26<<locked>>88%33,953 psi56%2520 fps95%
Baschieri & Pellagri 107<<locked>>80%49,139 psi82%2684 fps99.4%
Bofors RP3<<locked>>80%43,105 psi72%2575 fps99.7%
Bofors RP7<<locked>>84%43,410 psi72%2539 fps95.1%
Hodgdon H380<<locked>>80%43,511 psi72%2575 fps98%
Hodgdon H414<<locked>>86%42,975 psi71%2618 fps95.8%
Hodgdon H4350<<locked>>86%46,224 psi77%2635 fps95.1%
Hodgdon H4895<<locked>>80%50,473 psi84%2687 fps100%
Hodgdon Hybrid 100V<<locked>>80%31,241 psi52%2336 fps96.8%
Hodgdon LEVERevolution<<locked>>80%46,688 psi78%2667 fps99.9%
Hodgdon Superformance51.2 gr88%45,179 psi75%2687 fps95.8%
Hodgdon TrailBoss<<locked>>80%27,122 psi45%1509 fps100%
Hodgdon VARGET<<locked>>80%48,196 psi80%2638 fps99.9%
IMR 3031<<locked>>80%50,647 psi84%2674 fps100%
IMR 4064<<locked>>80%44,860 psi75%2569 fps99.2%
IMR 4166 Enduron<<locked>>80%46,963 psi78%2585 fps96.7%
IMR 4350<<locked>>88%43,192 psi72%2566 fps95.1%
IMR 4451 Enduron<<locked>>82%41,887 psi70%2513 fps95.2%
IMR 4831<<locked>>80%32,909 psi55%2385 fps95.6%
IMR 4895<<locked>>80%46,833 psi78%2651 fps99.7%
Lovex D073.6<<locked>>80%50,169 psi83%2661 fps100%
Lovex S060<<locked>>80%49,371 psi82%2608 fps99.8%
Lovex S062<<locked>>80%45,368 psi75%2575 fps99.9%
Lovex S065<<locked>>80%37,724 psi63%2431 fps95.6%
Lovex S070<<locked>>84%40,364 psi67%2507 fps95.1%
Lovex S071<<locked>>98%37,710 psi63%2493 fps95.2%
Norma 201<<locked>>80%49,443 psi82%2631 fps100%
Norma 202<<locked>>80%49,501 psi82%2631 fps100%
Norma 203B<<locked>>80%45,165 psi75%2612 fps99.5%
Norma 204<<locked>>92%48,762 psi81%2703 fps95.1%
Norma MRP<<locked>>96%43,685 psi73%2710 fps95.7%
Norma URP<<locked>>80%33,895 psi56%2421 fps95.7%
Ramshot Big Game<<locked>>80%44,570 psi74%2625 fps99.3%
Ramshot Hunter<<locked>>86%39,566 psi66%2559 fps95.7%
ReloadSwiss RS 14<<locked>>80%27,673 psi46%1549 fps100%
ReloadSwiss RS 50<<locked>>80%43,584 psi72%2556 fps96.5%
ReloadSwiss RS 52<<locked>>80%48,515 psi81%2730 fps99.6%
ReloadSwiss RS 60<<locked>>80%39,407 psi65%2605 fps100%
ReloadSwiss RS 62<<locked>>80%33,504 psi56%2438 fps95.3%
ReloadSwiss RS 7045.9 gr82%35,302 psi59%2490 fps95%
Rottweil R 902<<locked>>80%47,239 psi78%2589 fps100%
Rottweil R 903<<locked>>80%40,785 psi68%2523 fps99.3%
Rottweil R 905<<locked>>98%49,124 psi82%2736 fps95.7%
Rottweil R 907<<locked>>84%43,410 psi72%2539 fps95.1%
Shooters World Long Rifle<<locked>>80%37,724 psi63%2431 fps95.6%
Shooters World Match Rifle<<locked>>80%50,169 psi83%2661 fps100%
Shooters World Precision<<locked>>80%45,368 psi75%2575 fps99.9%
Shooters World SW4350<<locked>>84%40,364 psi67%2507 fps95.1%
SNPE Vectan SP 11<<locked>>80%41,205 psi68%2566 fps98.9%
SNPE Vectan SP 7<<locked>>80%50,836 psi84%2674 fps99.1%
SNPE Vectan SP 9<<locked>>80%48,385 psi80%2648 fps99.7%
SNPE Vectan Tubal 3000<<locked>>80%50,038 psi83%2569 fps100%
SNPE Vectan Tubal 5000<<locked>>80%42,177 psi70%2444 fps100%
SNPE Vectan Tubal 7000<<locked>>84%41,568 psi69%2470 fps95.3%
SNPE Vectan Tubal 8000<<locked>>98%48,660 psi81%2730 fps95.5%
Somchem S335<<locked>>80%49,951 psi83%2572 fps100%
Somchem S341<<locked>>80%50,111 psi83%2664 fps99.8%
Somchem S355<<locked>>80%41,321 psi69%2523 fps99.3%
Somchem S365<<locked>>80%30,879 psi51%2385 fps98.1%
Somchem S385<<locked>>94%44,251 psi74%2618 fps95.3%
Vihtavuori N133<<locked>>80%50,256 psi83%2556 fps100%
Vihtavuori N135<<locked>>80%46,804 psi78%2559 fps100%
Vihtavuori N140<<locked>>80%46,775 psi78%2566 fps100%
Vihtavuori N150<<locked>>80%39,131 psi65%2457 fps99.6%
Vihtavuori N160<<locked>>80%35,172 psi58%2418 fps96.1%
Vihtavuori N540<<locked>>80%45,397 psi75%2562 fps100%
Vihtavuori N550<<locked>>80%34,867 psi58%2425 fps95.7%
Vihtavuori N555<<locked>>84%30,516 psi51%2382 fps95.2%
Winchester 6.5 StaBALL<<locked>>80%34,635 psi58%2392 fps98.1%
Winchester 760<<locked>>84%40,582 psi67%2569 fps95%
Winchester StaBALL HD<<locked>>88%28,369 psi47%2382 fps95.5%
Winchester StaBALL Match<<locked>>80%48,095 psi80%2654 fps99.9%

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 88 powders for 7 x 64 Brenneke loaded with the .284 | 150gr | Barnes X BT. Alliant Reloder-26 delivers the highest muzzle velocity at 2,871 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,871 fps. Accurate 3100 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (415 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.284" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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-16, Hodgdon Superformance rank at the top here: for 7 x 64 Brenneke with the .284 | 150gr | Barnes X BT 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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