Load data for 7 x 64 Brenneke + .284 | 125gr | Lehigh Defense Controlled Chaos

7 x 64 Brenneke cartridge drawing
Lehigh Defense logo

Load Specifications

Bullet Manufacturer:Lehigh Defense
Bullet Weight:125 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:1:10.0

Load data in caliber 7 x 64 Brenneke with .284 | 125gr | Lehigh Defense Controlled Chaos bullet and 91 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Power Pro 2000-MR.

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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>84%51,300 psi85%2864 fps100%
Accurate 2460<<locked>>82%52,678 psi88%2927 fps100%
Accurate 2495<<locked>>90%52,591 psi87%2927 fps100%
Accurate 2520<<locked>>84%50,865 psi85%2936 fps100%
Accurate 4064<<locked>>92%52,359 psi87%2969 fps100%
Accurate 4350ᴾ<<locked>>100%51,822 psi86%3031 fps98.4%
ADI AR 2206H<<locked>>88%53,374 psi89%2999 fps99.4%
ADI AR 2208<<locked>>92%51,126 psi85%2940 fps98.7%
ADI Benchmark 8208<<locked>>86%52,721 psi88%2953 fps99.8%
Alliant AR-Comp<<locked>>86%52,895 psi88%2940 fps100%
Alliant Power Pro 1200-R<<locked>>82%54,027 psi90%3061 fps99.7%
Alliant Power Pro 2000-MR<<locked>>90%53,026 psi88%3110 fps99%
Alliant Reloder- TS 15.5<<locked>>94%53,983 psi90%3018 fps99.8%
Alliant Reloder-10x<<locked>>82%54,215 psi90%2917 fps100%
Alliant Reloder-15<<locked>>90%51,401 psi85%2982 fps98.9%
Alliant Reloder-16ᴾ<<locked>>100%50,372 psi84%3035 fps98.5%
Alliant Reloder-17<<locked>>96%51,068 psi85%3074 fps99.6%
Baschieri & Pellagri 107<<locked>>88%53,084 psi88%3009 fps98.7%
Bofors RP3<<locked>>92%51,024 psi85%2976 fps99.7%
Hodgdon Benchmark<<locked>>84%51,271 psi85%2887 fps99.9%
Hodgdon BL-C2<<locked>>86%51,764 psi86%2979 fps99.9%
Hodgdon CFE223<<locked>>84%53,490 psi89%3077 fps99.1%
Hodgdon H322<<locked>>82%53,156 psi88%2953 fps100%
Hodgdon H335<<locked>>82%54,085 psi90%2976 fps100%
Hodgdon H380<<locked>>92%52,518 psi87%2989 fps98.1%
Hodgdon H4895<<locked>>88%53,853 psi89%3009 fps99.7%
Hodgdon Hybrid 100Vᴾ<<locked>>100%46,311 psi77%2907 fps98.9%
Hodgdon LEVERevolution<<locked>>90%53,113 psi88%3041 fps99.8%
Hodgdon TrailBossᴾ<<locked>>100%34,998 psi58%1847 fps100%
Hodgdon VARGET<<locked>>88%51,982 psi86%2959 fps99.5%
IMR 3031<<locked>>88%53,650 psi89%3005 fps100%
IMR 4064<<locked>>92%53,838 psi89%2976 fps99.2%
IMR 4166 Enduron<<locked>>90%54,375 psi90%2953 fps96.2%
IMR 4198<<locked>>82%54,114 psi90%2874 fps100%
IMR 4451 Enduron<<locked>>96%53,708 psi89%2972 fps96%
IMR 4831ᴾ<<locked>>100%49,023 psi81%2963 fps98%
IMR 4895<<locked>>90%52,678 psi88%3015 fps99.4%
IMR 8208 XBR<<locked>>86%52,721 psi88%2953 fps99.8%
Lovex D073.5<<locked>>82%52,562 psi87%2936 fps100%
Lovex D073.6<<locked>>88%52,910 psi88%2979 fps100%
Lovex S060<<locked>>88%53,505 psi89%2930 fps99.4%
Lovex S062<<locked>>92%53,490 psi89%2976 fps99.9%
Lovex S065<<locked>>98%52,939 psi88%2966 fps97.3%
Lovex S070ᴾ<<locked>>100%53,563 psi89%2995 fps96.3%
Norma 201<<locked>>88%52,228 psi87%2943 fps99.8%
Norma 202<<locked>>88%52,736 psi88%2953 fps100%
Norma 203B<<locked>>92%54,070 psi90%3028 fps99.5%
Norma URPᴾ<<locked>>100%51,126 psi85%3018 fps98.2%
Ramshot Big Game<<locked>>90%51,039 psi85%2995 fps99.1%
Ramshot Hunterᴾ<<locked>>100%50,140 psi83%3005 fps96.3%
Ramshot TAC<<locked>>86%53,084 psi88%2963 fps97.5%
Ramshot Wild Boar<<locked>>86%52,272 psi87%2982 fps99.2%
Ramshot X-Terminator<<locked>>84%53,621 psi89%2949 fps99.3%
ReloadSwiss RS 14ᴾ<<locked>>100%35,520 psi59%1893 fps100%
ReloadSwiss RS 40<<locked>>82%52,141 psi87%2936 fps100%
ReloadSwiss RS 50<<locked>>92%53,011 psi88%2966 fps96.6%
ReloadSwiss RS 52<<locked>>88%51,416 psi85%3048 fps98.8%
ReloadSwiss RS 60<<locked>>94%50,981 psi85%3084 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%51,256 psi85%3048 fps98.1%
ReloadSwiss RS 70ᴾ<<locked>>100%51,692 psi86%3068 fps97.7%
Rottweil R 901<<locked>>86%53,403 psi89%2936 fps100%
Rottweil R 902<<locked>>90%52,779 psi88%2946 fps99.8%
Rottweil R 903<<locked>>96%54,462 psi90%3022 fps99.8%
Shooters World Long Rifle<<locked>>98%52,939 psi88%2966 fps97.3%
Shooters World Match Rifle<<locked>>88%52,910 psi88%2979 fps100%
Shooters World Precision<<locked>>92%53,490 psi89%2976 fps99.9%
Shooters World SW4350ᴾ<<locked>>100%53,563 psi89%2995 fps96.3%
SNPE Vectan SP 11<<locked>>94%52,721 psi88%3028 fps99.3%
SNPE Vectan SP 7<<locked>>86%51,111 psi85%2933 fps97.7%
SNPE Vectan SP 9<<locked>>88%51,953 psi86%2966 fps99.2%
SNPE Vectan Tubal 3000<<locked>>88%54,085 psi90%2894 fps100%
SNPE Vectan Tubal 5000<<locked>>94%53,925 psi90%2887 fps100%
SNPE Vectan Tubal 7000<<locked>>98%53,243 psi88%2913 fps95.9%
Somchem S321<<locked>>84%53,722 psi89%2986 fps99.9%
Somchem S335<<locked>>88%53,229 psi88%2890 fps100%
Somchem S341<<locked>>88%54,273 psi90%2986 fps99.4%
Somchem S355<<locked>>94%51,634 psi86%2969 fps99.5%
Somchem S365ᴾ<<locked>>100%45,658 psi76%2966 fps99.7%
Vihtavuori N130<<locked>>84%53,983 psi90%2864 fps100%
Vihtavuori N133<<locked>>88%54,172 psi90%2881 fps100%
Vihtavuori N135<<locked>>90%52,054 psi86%2917 fps100%
Vihtavuori N140<<locked>>90%53,214 psi88%2930 fps100%
Vihtavuori N150<<locked>>96%53,055 psi88%2953 fps100%
Vihtavuori N160ᴾ<<locked>>100%53,838 psi89%3018 fps98.5%
Vihtavuori N530<<locked>>86%53,156 psi88%2953 fps99.9%
Vihtavuori N540<<locked>>90%51,547 psi86%2923 fps100%
Vihtavuori N550ᴾ<<locked>>100%52,678 psi88%3022 fps98.3%
Vihtavuori N555ᴾ<<locked>>100%38,247 psi64%2815 fps95.9%
Winchester 6.5 StaBALL<<locked>>98%51,140 psi85%2949 fps99.6%
Winchester 748<<locked>>86%52,547 psi87%2999 fps100%
Winchester StaBALL Match<<locked>>88%51,561 psi86%2972 fps99.5%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%45,121 psi75%2762 fps100%
Accurate 2460<<locked>>80%49,327 psi82%2874 fps100%
Accurate 2495<<locked>>80%37,652 psi63%2671 fps100%
Accurate 2520<<locked>>80%44,469 psi74%2825 fps99.8%
Accurate 4064<<locked>>80%35,621 psi59%2654 fps99.3%
Accurate 4350<<locked>>92%39,059 psi65%2785 fps95.4%
ADI AR 2206H<<locked>>80%41,582 psi69%2772 fps97.4%
ADI AR 2208<<locked>>82%37,739 psi63%2671 fps95.6%
ADI Benchmark 8208<<locked>>80%43,642 psi73%2789 fps98.9%
Alliant AR-Comp<<locked>>80%43,279 psi72%2792 fps100%
Alliant Power Pro 1200-R<<locked>>80%50,821 psi84%3005 fps99.4%
Alliant Power Pro 2000-MR45.6 gr80%37,666 psi63%2779 fps95%
Alliant Reloder- TS 15.5<<locked>>80%34,737 psi58%2635 fps96.4%
Alliant Reloder-10x<<locked>>80%50,995 psi85%2871 fps100%
Alliant Reloder-15<<locked>>80%37,405 psi62%2700 fps95.7%
Alliant Reloder-16<<locked>>92%39,247 psi65%2799 fps95.4%
Alliant Reloder-1747.1 gr84%34,200 psi57%2697 fps95.4%
Baschieri & Pellagri 107<<locked>>80%40,538 psi67%2766 fps96%
Bofors RP3<<locked>>80%34,069 psi57%2628 fps96.3%
Hodgdon Benchmark<<locked>>80%45,397 psi75%2782 fps99.5%
Hodgdon BL-C2<<locked>>80%42,221 psi70%2805 fps99.1%
Hodgdon CFE223<<locked>>80%46,180 psi77%2946 fps98%
Hodgdon H322<<locked>>80%49,676 psi83%2900 fps100%
Hodgdon H335<<locked>>80%50,676 psi84%2923 fps100%
Hodgdon H380<<locked>>84%40,205 psi67%2749 fps95.1%
Hodgdon H4895<<locked>>80%41,959 psi70%2789 fps98.1%
Hodgdon Hybrid 100V<<locked>>90%33,692 psi56%2628 fps95.3%
Hodgdon LEVERevolution<<locked>>80%37,797 psi63%2746 fps97.5%
Hodgdon TrailBoss<<locked>>80%26,005 psi43%1650 fps100%
Hodgdon VARGET<<locked>>80%40,161 psi67%2733 fps97.6%
IMR 3031<<locked>>80%41,089 psi68%2792 fps100%
IMR 4064<<locked>>80%37,028 psi62%2648 fps95.6%
IMR 4166 Enduron<<locked>>88%51,039 psi85%2897 fps95.5%
IMR 4198<<locked>>80%51,227 psi85%2831 fps100%
IMR 4451 Enduron<<locked>>94%50,676 psi84%2917 fps95.3%
IMR 4831<<locked>>92%37,739 psi63%2740 fps95%
IMR 4895<<locked>>80%38,305 psi64%2730 fps96.6%
IMR 8208 XBR<<locked>>80%43,642 psi73%2789 fps98.9%
Lovex D073.5<<locked>>80%49,197 psi82%2881 fps99.9%
Lovex D073.6<<locked>>80%40,379 psi67%2756 fps99.4%
Lovex S060<<locked>>80%41,887 psi70%2717 fps97.6%
Lovex S062<<locked>>80%36,869 psi61%2654 fps97.5%
Lovex S065<<locked>>92%43,874 psi73%2799 fps95.2%
Lovex S070<<locked>>98%50,169 psi83%2936 fps95.6%
Norma 201<<locked>>80%40,625 psi67%2726 fps98.4%
Norma 202<<locked>>80%40,944 psi68%2743 fps99.8%
Norma 203B<<locked>>80%36,796 psi61%2687 fps96.1%
Norma URP<<locked>>92%39,465 psi66%2789 fps95.4%
Ramshot Big Game<<locked>>80%36,245 psi60%2694 fps95.6%
Ramshot Hunter<<locked>>98%46,963 psi78%2946 fps95.5%
Ramshot TAC<<locked>>80%43,468 psi72%2782 fps95.3%
Ramshot Wild Boar<<locked>>80%42,786 psi71%2805 fps97.7%
Ramshot X-Terminator<<locked>>80%47,282 psi79%2841 fps98.5%
ReloadSwiss RS 14<<locked>>80%26,339 psi44%1690 fps100%
ReloadSwiss RS 40<<locked>>80%48,820 psi81%2881 fps99.9%
ReloadSwiss RS 50<<locked>>88%46,296 psi77%2844 fps95%
ReloadSwiss RS 52<<locked>>80%38,841 psi65%2799 fps96.1%
ReloadSwiss RS 6044.9 gr80%31,995 psi53%2648 fps97.1%
ReloadSwiss RS 62<<locked>>94%41,742 psi69%2864 fps95.8%
ReloadSwiss RS 70<<locked>>96%45,266 psi75%2940 fps96%
Rottweil R 901<<locked>>80%44,469 psi74%2782 fps99.9%
Rottweil R 902<<locked>>80%38,667 psi64%2677 fps97.9%
Rottweil R 903<<locked>>80%32,082 psi53%2569 fps95.2%
Shooters World Long Rifle<<locked>>92%43,874 psi73%2799 fps95.2%
Shooters World Match Rifle<<locked>>80%40,379 psi67%2756 fps99.4%
Shooters World Precision<<locked>>80%36,869 psi61%2654 fps97.5%
Shooters World SW4350<<locked>>98%50,169 psi83%2936 fps95.6%
SNPE Vectan SP 11<<locked>>82%35,491 psi59%2680 fps95.4%
SNPE Vectan SP 7<<locked>>80%41,669 psi69%2753 fps95.4%
SNPE Vectan SP 9<<locked>>80%40,161 psi67%2740 fps97.1%
SNPE Vectan Tubal 3000<<locked>>80%42,090 psi70%2690 fps99.8%
SNPE Vectan Tubal 5000<<locked>>80%34,780 psi58%2546 fps99.5%
SNPE Vectan Tubal 7000<<locked>>96%49,763 psi83%2854 fps95.2%
Somchem S321<<locked>>80%46,949 psi78%2871 fps99.5%
Somchem S335<<locked>>80%41,655 psi69%2694 fps100%
Somchem S341<<locked>>80%41,263 psi69%2753 fps97.3%
Somchem S355<<locked>>80%33,025 psi55%2579 fps95.3%
Somchem S365<<locked>>88%30,893 psi51%2612 fps95.7%
Vihtavuori N130<<locked>>80%47,587 psi79%2766 fps100%
Vihtavuori N133<<locked>>80%42,293 psi70%2690 fps100%
Vihtavuori N135<<locked>>80%37,768 psi63%2671 fps100%
Vihtavuori N140<<locked>>80%38,638 psi64%2674 fps99.7%
Vihtavuori N150<<locked>>80%31,430 psi52%2520 fps96.3%
Vihtavuori N160<<locked>>90%38,638 psi64%2733 fps95%
Vihtavuori N530<<locked>>80%43,468 psi72%2782 fps98.9%
Vihtavuori N540<<locked>>80%37,260 psi62%2657 fps99.3%
Vihtavuori N550<<locked>>92%40,683 psi68%2795 fps95.5%
Vihtavuori N555<<locked>>98%35,984 psi60%2762 fps95.1%
Winchester 6.5 StaBALL<<locked>>86%34,287 psi57%2598 fps95.7%
Winchester 748<<locked>>80%42,960 psi71%2828 fps99.4%
Winchester StaBALL Match<<locked>>80%39,378 psi65%2740 fps97.5%

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.

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

This overview compares 91 powders for 7 x 64 Brenneke loaded with the .284 | 125gr | Lehigh Defense Controlled Chaos. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,110 fps; across all powders the maximum-charge window runs from 1,847 fps to 3,110 fps. Accurate 4350 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (415 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Hodgdon Hybrid 100V 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 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for 7 x 64 Brenneke with the .284 | 125gr | Lehigh Defense Controlled Chaos 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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