Load data for 7 x 65 R Brenneke + .284 | 100gr | Sierra VarmintKing

7 x 65 R Brenneke cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
Bullet Weight:100 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.56"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:66 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:55,114 psi
Recommended Twist Rate:1:15.0

Load data in caliber 7 x 65 R Brenneke with .284 | 100gr | Sierra VarmintKing bullet and 66 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 Hodgdon LEVERevolution.

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 2015<<locked>>84%47,007 psi85%3114 fps100%
Accurate 2460<<locked>>82%48,298 psi88%3166 fps99.6%
Accurate 2495<<locked>>90%47,398 psi86%3163 fps100%
Accurate 2520<<locked>>86%48,138 psi87%3205 fps99.4%
Accurate 4064<<locked>>92%47,558 psi86%3199 fps99.8%
ADI AR 2206H<<locked>>88%49,168 psi89%3225 fps97.3%
ADI AR 2208<<locked>>92%47,326 psi86%3163 fps96.1%
ADI Benchmark 8208<<locked>>86%48,675 psi88%3186 fps98.3%
Alliant AR-Comp<<locked>>86%47,732 psi87%3196 fps100%
Alliant Power Pro 1200-R<<locked>>82%49,284 psi89%3294 fps97.8%
Alliant Reloder- TS 15.5<<locked>>94%49,472 psi90%3245 fps98.2%
Alliant Reloder-15<<locked>>90%47,166 psi86%3202 fps96.2%
Alliant Reloder-17<<locked>>96%46,847 psi85%3278 fps97.2%
Baschieri & Pellagri 107<<locked>>88%48,805 psi89%3225 fps96%
Bofors RP3<<locked>>94%49,705 psi90%3255 fps98.3%
Hodgdon Benchmark<<locked>>84%47,776 psi87%3127 fps98.6%
Hodgdon BL-C2<<locked>>86%47,166 psi86%3202 fps98.5%
Hodgdon CFE223<<locked>>84%48,501 psi88%3294 fps96.5%
Hodgdon H322<<locked>>84%48,254 psi88%3196 fps99.9%
Hodgdon H4895<<locked>>88%49,559 psi90%3241 fps97.9%
Hodgdon Hybrid 100Vᴾ<<locked>>100%42,264 psi77%3100 fps95.9%
Hodgdon LEVERevolution<<locked>>92%48,196 psi87%3261 fps98.1%
Hodgdon TrailBossᴾ<<locked>>100%34,432 psi62%2077 fps100%
Hodgdon VARGET<<locked>>90%46,920 psi85%3169 fps97.3%
IMR 3031<<locked>>90%47,166 psi86%3225 fps100%
IMR 4064<<locked>>94%48,936 psi89%3189 fps96.7%
IMR 4895<<locked>>90%48,312 psi88%3241 fps97.2%
IMR 8208 XBR<<locked>>86%48,675 psi88%3186 fps98.3%
Lovex D073.5<<locked>>82%48,254 psi88%3169 fps98.9%
Lovex D073.6<<locked>>88%48,138 psi87%3205 fps99.4%
Lovex S060<<locked>>88%49,530 psi90%3159 fps97.4%
Lovex S062<<locked>>92%49,240 psi89%3205 fps98.5%
Norma 201<<locked>>88%48,066 psi87%3176 fps98.2%
Norma 202<<locked>>88%48,414 psi88%3196 fps99.7%
Norma 203B<<locked>>92%49,327 psi90%3248 fps97.4%
Ramshot Big Game<<locked>>92%49,676 psi90%3268 fps97.2%
Ramshot Wild Boar<<locked>>86%48,138 psi87%3205 fps97%
Ramshot X-Terminator<<locked>>84%49,763 psi90%3182 fps97.2%
ReloadSwiss RS 14ᴾ<<locked>>100%34,751 psi63%2126 fps100%
ReloadSwiss RS 40<<locked>>82%48,153 psi87%3176 fps99.2%
ReloadSwiss RS 52<<locked>>90%49,748 psi90%3327 fps96.8%
ReloadSwiss RS 60<<locked>>94%46,470 psi84%3291 fps99.2%
Rottweil R 901<<locked>>86%49,269 psi89%3182 fps99.6%
Rottweil R 902<<locked>>90%48,472 psi88%3173 fps98.3%
Rottweil R 903<<locked>>96%49,269 psi89%3238 fps98%
Shooters World Match Rifle<<locked>>88%48,138 psi87%3205 fps99.4%
Shooters World Precision<<locked>>92%49,240 psi89%3205 fps98.5%
SNPE Vectan SP 11<<locked>>94%48,124 psi87%3241 fps96.9%
SNPE Vectan SP 9<<locked>>88%47,761 psi87%3186 fps96.9%
SNPE Vectan Tubal 3000<<locked>>86%47,137 psi86%3084 fps99.5%
SNPE Vectan Tubal 5000<<locked>>94%49,690 psi90%3133 fps100%
Somchem S321<<locked>>84%49,501 psi90%3219 fps98.7%
Somchem S335<<locked>>88%49,269 psi89%3136 fps100%
Somchem S341<<locked>>88%49,850 psi90%3209 fps97.3%
Somchem S355<<locked>>94%47,065 psi85%3182 fps97.3%
Somchem S365ᴾ<<locked>>100%41,118 psi75%3146 fps97.2%
Vihtavuori N130<<locked>>84%48,805 psi89%3107 fps100%
Vihtavuori N133<<locked>>90%49,472 psi90%3133 fps100%
Vihtavuori N135<<locked>>90%47,311 psi86%3159 fps100%
Vihtavuori N140<<locked>>90%48,167 psi87%3163 fps99.8%
Vihtavuori N150ᴾ<<locked>>100%48,109 psi87%3173 fps98.7%
Vihtavuori N530<<locked>>84%48,167 psi87%3192 fps98.3%
Vihtavuori N540<<locked>>90%47,776 psi87%3179 fps99.6%
Winchester 6.5 StaBALL<<locked>>98%47,036 psi85%3146 fps97.4%
Winchester 748<<locked>>84%48,559 psi88%3238 fps99%
Winchester StaBALL Match<<locked>>82%48,559 psi88%3219 fps97.7%

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

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%41,423 psi75%3002 fps99.9%
Accurate 2460<<locked>>80%45,165 psi82%3104 fps99.2%
Accurate 2495<<locked>>80%33,968 psi62%2871 fps99.3%
Accurate 2520<<locked>>80%38,841 psi70%3009 fps97.7%
Accurate 4064<<locked>>80%32,082 psi58%2838 fps96.6%
ADI AR 2206H<<locked>>84%43,308 psi79%3100 fps95.8%
ADI AR 2208<<locked>>90%44,295 psi80%3097 fps95.2%
ADI Benchmark 8208<<locked>>80%40,045 psi73%3002 fps96.2%
Alliant AR-Comp<<locked>>80%38,957 psi71%3025 fps100%
Alliant Power Pro 1200-R<<locked>>80%46,267 psi84%3232 fps97.2%
Alliant Reloder- TS 15.5<<locked>>86%38,130 psi69%2992 fps95.2%
Alliant Reloder-15<<locked>>88%44,077 psi80%3133 fps95.4%
Alliant Reloder-1755.8 gr92%40,756 psi74%3133 fps95.2%
Baschieri & Pellagri 107<<locked>>86%45,411 psi82%3156 fps95.1%
Bofors RP3<<locked>>86%37,782 psi69%2995 fps95.2%
Hodgdon Benchmark<<locked>>80%42,134 psi76%3009 fps97.5%
Hodgdon BL-C2<<locked>>80%38,247 psi69%3002 fps96.3%
Hodgdon CFE223<<locked>>82%45,049 psi82%3219 fps95.6%
Hodgdon H322<<locked>>80%42,192 psi77%3071 fps99.5%
Hodgdon H4895<<locked>>82%40,770 psi74%3048 fps95.6%
Hodgdon Hybrid 100V<<locked>>98%39,682 psi72%3038 fps95%
Hodgdon LEVERevolution50.8 gr86%39,378 psi71%3061 fps95.7%
Hodgdon TrailBoss<<locked>>80%25,527 psi46%1860 fps100%
Hodgdon VARGET<<locked>>86%41,249 psi75%3041 fps95.7%
IMR 3031<<locked>>80%33,968 psi62%2923 fps98.5%
IMR 4064<<locked>>90%43,221 psi78%3071 fps95.2%
IMR 4895<<locked>>86%42,453 psi77%3114 fps95.6%
IMR 8208 XBR<<locked>>80%40,045 psi73%3002 fps96.2%
Lovex D073.5<<locked>>80%45,063 psi82%3104 fps98.4%
Lovex D073.6<<locked>>80%36,448 psi66%2949 fps97%
Lovex S060<<locked>>82%41,350 psi75%2986 fps95.3%
Lovex S062<<locked>>84%38,247 psi69%2966 fps95.8%
Norma 201<<locked>>80%37,347 psi68%2930 fps95.4%
Norma 202<<locked>>80%37,231 psi68%2949 fps97.9%
Norma 203B<<locked>>86%40,770 psi74%3061 fps95%
Ramshot Big Game<<locked>>88%43,192 psi78%3130 fps95.5%
Ramshot Wild Boar<<locked>>82%41,930 psi76%3068 fps95.3%
Ramshot X-Terminator<<locked>>80%43,511 psi79%3051 fps95.7%
ReloadSwiss RS 14<<locked>>80%25,686 psi47%1903 fps100%
ReloadSwiss RS 40<<locked>>80%45,005 psi82%3114 fps98.7%
ReloadSwiss RS 52<<locked>>86%43,178 psi78%3186 fps95%
ReloadSwiss RS 6052.2 gr86%35,621 psi65%3009 fps95.9%
Rottweil R 901<<locked>>80%41,031 psi74%3009 fps98.5%
Rottweil R 902<<locked>>82%37,681 psi68%2933 fps95.5%
Rottweil R 903<<locked>>90%40,393 psi73%3051 fps95.7%
Shooters World Match Rifle<<locked>>80%36,448 psi66%2949 fps97%
Shooters World Precision<<locked>>84%38,247 psi69%2966 fps95.8%
SNPE Vectan SP 11<<locked>>90%42,134 psi76%3114 fps95.3%
SNPE Vectan SP 9<<locked>>84%41,872 psi76%3058 fps95.3%
SNPE Vectan Tubal 3000<<locked>>80%38,943 psi71%2913 fps98.3%
SNPE Vectan Tubal 5000<<locked>>80%31,952 psi58%2746 fps97.3%
Somchem S321<<locked>>80%43,062 psi78%3084 fps97.4%
Somchem S335<<locked>>80%38,479 psi70%2913 fps98.8%
Somchem S341<<locked>>84%43,366 psi79%3077 fps95.7%
Somchem S355<<locked>>90%41,365 psi75%3058 fps95.8%
Somchem S365<<locked>>96%36,100 psi66%3015 fps95.3%
Vihtavuori N130<<locked>>80%43,308 psi79%3005 fps100%
Vihtavuori N133<<locked>>80%36,506 psi66%2867 fps99.5%
Vihtavuori N135<<locked>>80%34,316 psi62%2881 fps99.3%
Vihtavuori N140<<locked>>80%34,824 psi63%2867 fps97.6%
Vihtavuori N150<<locked>>90%35,012 psi64%2881 fps95.2%
Vihtavuori N530<<locked>>80%41,930 psi76%3061 fps96.9%
Vihtavuori N540<<locked>>80%34,563 psi63%2877 fps97%
Winchester 6.5 StaBALL<<locked>>94%41,060 psi75%3018 fps95.6%
Winchester 748<<locked>>80%42,105 psi76%3104 fps97.7%
Winchester StaBALL Match<<locked>>80%44,889 psi81%3143 fps96.9%

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 91 powders for 7 x 65 R Brenneke loaded with the .284 | 100gr | Sierra VarmintKing. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,327 fps; across all powders the maximum-charge window runs from 2,077 fps to 3,327 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 (380 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.284" calls for a 1:15.0 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, Hodgdon LEVERevolution rank at the top here: for 7 x 65 R Brenneke with the .284 | 100gr | Sierra VarmintKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Hodgdon H380, Hodgdon H414 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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