Load data for 8 mm Rem. Mag. + .323 | 145gr | Brenneke TIG nature

8 mm Rem. Mag. cartridge drawing
Brenneke logo

Load Specifications

Bullet Manufacturer:Brenneke
Bullet Weight:145 gr
Bullet Diameter:0.323"
Bullet Length:<<locked>>
Case Length (l3):2.85"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:98 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:26"
Max. allowed Pressure:66,717 psi
Recommended Twist Rate:1:12.0

Load data in caliber 8 mm Rem. Mag. with .323 | 145gr | Brenneke TIG nature bullet and 108 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.

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: 26"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>86%57,130 psi86%3215 fps100%
Accurate 2460<<locked>>84%59,480 psi89%3301 fps100%
Accurate 2495<<locked>>92%59,437 psi89%3287 fps100%
Accurate 2520<<locked>>88%60,278 psi90%3356 fps100%
Accurate 2520<<locked>>88%60,278 psi90%3356 fps100%
Accurate 2700<<locked>>94%56,710 psi85%3232 fps96.5%
Accurate 4064<<locked>>94%59,132 psi89%3337 fps100%
Accurate 4350ᴾ<<locked>>100%56,144 psi84%3373 fps99.4%
Accurate LT-30<<locked>>82%59,117 psi89%3205 fps100%
Accurate LT-32<<locked>>82%59,596 psi89%3238 fps100%
ADI APS 450<<locked>>82%59,640 psi89%2566 fps100%
ADI AR 2206H<<locked>>90%60,321 psi90%3389 fps100%
ADI AR 2208<<locked>>94%57,769 psi87%3323 fps99.7%
ADI Benchmark 8208<<locked>>88%59,059 psi89%3330 fps100%
Alliant AR-Comp<<locked>>88%60,075 psi90%3304 fps100%
Alliant Power Pro 2000-MR<<locked>>90%56,550 psi85%3458 fps99.7%
Alliant Reloder- TS 15.5<<locked>>94%57,682 psi86%3350 fps100%
Alliant Reloder-10x<<locked>>84%60,075 psi90%3274 fps100%
Alliant Reloder-15<<locked>>92%58,291 psi87%3373 fps99.8%
Alliant Reloder-16ᴾ<<locked>>100%53,896 psi81%3379 fps99.4%
Alliant Reloder-17<<locked>>98%59,205 psi89%3488 fps100%
Alliant Reloder-23ᴾ<<locked>>100%38,130 psi57%3054 fps97.6%
Alliant Reloder-26ᴾ<<locked>>100%42,786 psi64%3225 fps96.8%
Baschieri & Pellagri 106<<locked>>82%58,856 psi88%3196 fps100%
Baschieri & Pellagri 107<<locked>>88%56,768 psi85%3343 fps99.5%
Bofors RP3<<locked>>94%58,320 psi87%3363 fps100%
Bofors RP7<<locked>>98%58,566 psi88%3327 fps97.1%
Hodgdon Benchmark<<locked>>86%57,348 psi86%3258 fps100%
Hodgdon BL-C2<<locked>>88%58,929 psi88%3363 fps100%
Hodgdon CFE223<<locked>>84%57,058 psi86%3415 fps99.7%
Hodgdon H322<<locked>>86%59,146 psi89%3317 fps100%
Hodgdon H380<<locked>>94%59,712 psi90%3383 fps99.4%
Hodgdon H414<<locked>>96%57,276 psi86%3399 fps97.7%
Hodgdon H4350ᴾ<<locked>>100%57,551 psi86%3350 fps96.3%
Hodgdon H4895<<locked>>88%56,971 psi85%3337 fps100%
Hodgdon Hybrid 100Vᴾ<<locked>>100%49,850 psi75%3235 fps99.7%
Hodgdon LEVERevolution<<locked>>92%56,753 psi85%3373 fps100%
Hodgdon Superformance<<locked>>98%56,811 psi85%3409 fps97.2%
Hodgdon TrailBossᴾ<<locked>>100%35,070 psi53%2057 fps100%
Hodgdon VARGET<<locked>>92%57,130 psi86%3320 fps100%
IMR 3031<<locked>>92%58,798 psi88%3350 fps100%
IMR 4064<<locked>>96%59,669 psi89%3346 fps99.9%
IMR 4166 Enduron<<locked>>96%59,161 psi89%3314 fps97.7%
IMR 4198<<locked>>84%60,133 psi90%3232 fps100%
IMR 4350ᴾ<<locked>>100%55,274 psi83%3287 fps96.6%
IMR 4451 Enduron<<locked>>96%56,985 psi85%3307 fps97.3%
IMR 4831ᴾ<<locked>>100%46,760 psi70%3186 fps98.1%
IMR 4895<<locked>>92%59,799 psi90%3409 fps100%
IMR 8208 XBR<<locked>>88%59,059 psi89%3330 fps100%
Lovex D073.5<<locked>>84%59,683 psi89%3314 fps100%
Lovex D073.6<<locked>>90%60,278 psi90%3356 fps100%
Lovex S060<<locked>>90%59,640 psi89%3304 fps100%
Lovex S062<<locked>>94%60,307 psi90%3353 fps100%
Lovex S065ᴾ<<locked>>100%59,741 psi90%3353 fps98.9%
Lovex S070ᴾ<<locked>>100%57,130 psi86%3330 fps97.7%
Norma 201<<locked>>90%58,668 psi88%3323 fps100%
Norma 202<<locked>>90%59,451 psi89%3323 fps100%
Norma 203B<<locked>>92%57,421 psi86%3360 fps99.9%
Norma URPᴾ<<locked>>100%55,129 psi83%3360 fps99.2%
Ramshot Big Game<<locked>>92%58,407 psi88%3386 fps99.9%
Ramshot Hunterᴾ<<locked>>100%54,099 psi81%3346 fps97.9%
Ramshot TAC<<locked>>88%59,915 psi90%3353 fps99%
Ramshot Wild Boar<<locked>>88%59,451 psi89%3373 fps100%
Ramshot X-Terminator<<locked>>84%56,594 psi85%3274 fps99.8%
ReloadSwiss RS 14ᴾ<<locked>>100%35,389 psi53%2103 fps100%
ReloadSwiss RS 40<<locked>>84%58,523 psi88%3310 fps100%
ReloadSwiss RS 50<<locked>>94%60,118 psi90%3360 fps98.4%
ReloadSwiss RS 52<<locked>>90%59,016 psi88%3451 fps99.8%
ReloadSwiss RS 60<<locked>>96%58,842 psi88%3488 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%55,927 psi84%3392 fps99.2%
ReloadSwiss RS 70ᴾ<<locked>>100%56,028 psi84%3432 fps99.1%
Rottweil R 901<<locked>>88%59,176 psi89%3301 fps100%
Rottweil R 902<<locked>>92%59,030 psi88%3317 fps100%
Rottweil R 903<<locked>>96%58,160 psi87%3353 fps100%
Rottweil R 907<<locked>>98%58,566 psi88%3327 fps97.1%
Shooters World Long Rifleᴾ<<locked>>100%59,741 psi90%3353 fps98.9%
Shooters World Match Rifle<<locked>>90%60,278 psi90%3356 fps100%
Shooters World Precision<<locked>>94%60,307 psi90%3353 fps100%
Shooters World SW4350ᴾ<<locked>>100%57,130 psi86%3330 fps97.7%
Shooters World Tactical Rifle<<locked>>82%58,305 psi87%3278 fps100%
SNPE Vectan SP 11<<locked>>94%56,579 psi85%3363 fps99.9%
SNPE Vectan SP 3<<locked>>82%57,740 psi87%3255 fps100%
SNPE Vectan SP 7<<locked>>88%58,189 psi87%3323 fps99.2%
SNPE Vectan SP 9<<locked>>90%58,697 psi88%3353 fps99.9%
SNPE Vectan Tubal 3000<<locked>>88%56,797 psi85%3205 fps100%
SNPE Vectan Tubal 5000<<locked>>94%57,159 psi86%3196 fps100%
SNPE Vectan Tubal 7000<<locked>>98%56,695 psi85%3241 fps97.4%
Somchem S321<<locked>>84%57,014 psi85%3310 fps100%
Somchem S335<<locked>>90%59,567 psi89%3248 fps100%
Somchem S341<<locked>>88%57,928 psi87%3317 fps99.9%
Somchem S355<<locked>>96%58,262 psi87%3350 fps100%
Somchem S365ᴾ<<locked>>100%49,284 psi74%3297 fps100%
Unknown powderᴾ<<locked>>100%60,292 psi90%3432 fps99.4%
Vihtavuori N130<<locked>>86%59,756 psi90%3212 fps100%
Vihtavuori N133<<locked>>88%57,014 psi85%3189 fps100%
Vihtavuori N135<<locked>>92%58,740 psi88%3278 fps100%
Vihtavuori N140<<locked>>92%60,147 psi90%3297 fps100%
Vihtavuori N150<<locked>>98%60,365 psi90%3327 fps100%
Vihtavuori N160ᴾ<<locked>>100%57,986 psi87%3356 fps99.4%
Vihtavuori N530<<locked>>88%59,915 psi90%3333 fps100%
Vihtavuori N540<<locked>>92%58,247 psi87%3294 fps100%
Vihtavuori N550ᴾ<<locked>>100%56,797 psi85%3360 fps99.3%
Vihtavuori N555ᴾ<<locked>>100%41,626 psi62%3143 fps97.6%
Winchester 6.5 StaBALLᴾ<<locked>>100%58,798 psi88%3333 fps100%
Winchester 748<<locked>>84%56,811 psi85%3340 fps100%
Winchester 760<<locked>>96%57,276 psi86%3399 fps97.7%
Winchester StaBALL HDᴾ<<locked>>100%34,069 psi51%3025 fps96.9%
Winchester StaBALL Match<<locked>>82%56,463 psi85%3323 fps100%

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

Start Load - Barrel Length: 26"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%47,065 psi71%3058 fps100%
Accurate 2460<<locked>>80%51,822 psi78%3182 fps100%
Accurate 2495<<locked>>80%39,320 psi59%2953 fps100%
Accurate 2520<<locked>>80%45,455 psi68%3114 fps100%
Accurate 2520<<locked>>80%45,455 psi68%3114 fps100%
Accurate 2700<<locked>>92%53,011 psi79%3169 fps95.8%
Accurate 4064<<locked>>80%37,202 psi56%2940 fps99.7%
Accurate 4350<<locked>>88%36,216 psi54%2969 fps95.1%
Accurate LT-30<<locked>>80%55,709 psi84%3156 fps100%
Accurate LT-32<<locked>>80%56,130 psi84%3189 fps100%
ADI APS 450<<locked>>80%57,522 psi86%2530 fps100%
ADI AR 2206H<<locked>>80%43,627 psi65%3084 fps98.4%
ADI AR 2208<<locked>>80%36,898 psi55%2900 fps95.9%
ADI Benchmark 8208<<locked>>80%45,774 psi69%3097 fps99.5%
Alliant AR-Comp<<locked>>80%45,687 psi68%3087 fps100%
Alliant Power Pro 2000-MR69.1 gr80%39,697 psi60%3100 fps96.6%
Alliant Reloder- TS 15.5<<locked>>80%36,434 psi55%2927 fps97.5%
Alliant Reloder-10x<<locked>>80%53,098 psi80%3173 fps100%
Alliant Reloder-15<<locked>>80%39,320 psi59%3002 fps96.9%
Alliant Reloder-16<<locked>>88%36,622 psi55%2989 fps95.2%
Alliant Reloder-1769.7 gr82%33,721 psi51%2940 fps96%
Alliant Reloder-23<<locked>>96%33,475 psi50%2923 fps95.8%
Alliant Reloder-26<<locked>>98%39,798 psi60%3150 fps95.7%
Baschieri & Pellagri 106<<locked>>80%55,230 psi83%3143 fps100%
Baschieri & Pellagri 107<<locked>>80%42,960 psi64%3077 fps97.3%
Bofors RP3<<locked>>80%35,998 psi54%2923 fps97.5%
Bofors RP7<<locked>>94%51,459 psi77%3202 fps95.7%
Hodgdon Benchmark<<locked>>80%47,514 psi71%3091 fps99.8%
Hodgdon BL-C2<<locked>>80%44,541 psi67%3114 fps99.6%
Hodgdon CFE223<<locked>>80%49,371 psi74%3278 fps99%
Hodgdon H322<<locked>>80%48,414 psi73%3146 fps100%
Hodgdon H380<<locked>>82%39,523 psi59%2992 fps95.6%
Hodgdon H414<<locked>>90%46,369 psi70%3192 fps95.2%
Hodgdon H4350<<locked>>98%53,969 psi81%3287 fps95.5%
Hodgdon H4895<<locked>>80%44,048 psi66%3097 fps98.9%
Hodgdon Hybrid 100V<<locked>>86%31,256 psi47%2802 fps95%
Hodgdon LEVERevolution<<locked>>80%37,637 psi56%2995 fps97.9%
Hodgdon Superformance<<locked>>94%48,907 psi73%3261 fps95.3%
Hodgdon TrailBoss<<locked>>80%26,092 psi39%1844 fps100%
Hodgdon VARGET<<locked>>80%39,001 psi58%2966 fps97.8%
IMR 3031<<locked>>80%39,697 psi60%3018 fps100%
IMR 4064<<locked>>80%36,201 psi54%2881 fps95.9%
IMR 4166 Enduron<<locked>>88%46,296 psi69%3077 fps95%
IMR 4198<<locked>>80%53,374 psi80%3133 fps100%
IMR 4350<<locked>>96%48,602 psi73%3166 fps95%
IMR 4451 Enduron<<locked>>90%47,195 psi71%3123 fps95.1%
IMR 4831<<locked>>92%35,940 psi54%2943 fps95.1%
IMR 4895<<locked>>80%40,306 psi60%3038 fps97.7%
IMR 8208 XBR<<locked>>80%45,774 psi69%3097 fps99.5%
Lovex D073.5<<locked>>80%51,808 psi78%3192 fps100%
Lovex D073.6<<locked>>80%42,496 psi64%3054 fps99.8%
Lovex S060<<locked>>80%43,714 psi66%3015 fps98.4%
Lovex S062<<locked>>80%38,580 psi58%2949 fps98.4%
Lovex S065<<locked>>88%40,857 psi61%2992 fps95%
Lovex S070<<locked>>94%47,108 psi71%3146 fps95.6%
Norma 201<<locked>>80%42,395 psi64%3025 fps99.1%
Norma 202<<locked>>80%42,888 psi64%3041 fps100%
Norma 203B<<locked>>80%38,667 psi58%2986 fps97.2%
Norma URP<<locked>>88%36,767 psi55%2979 fps95.1%
Ramshot Big Game<<locked>>80%38,305 psi57%2995 fps97%
Ramshot Hunter<<locked>>94%44,135 psi66%3153 fps95.5%
Ramshot TAC<<locked>>80%45,687 psi68%3091 fps96.6%
Ramshot Wild Boar<<locked>>80%45,208 psi68%3117 fps98.6%
Ramshot X-Terminator<<locked>>80%49,443 psi74%3150 fps99.2%
ReloadSwiss RS 14<<locked>>80%26,324 psi39%1886 fps100%
ReloadSwiss RS 40<<locked>>80%51,271 psi77%3192 fps100%
ReloadSwiss RS 50<<locked>>86%45,890 psi69%3104 fps95.7%
ReloadSwiss RS 52<<locked>>80%41,350 psi62%3114 fps97.3%
ReloadSwiss RS 6068 gr80%33,533 psi50%2949 fps98.3%
ReloadSwiss RS 62<<locked>>90%38,914 psi58%3054 fps95.6%
ReloadSwiss RS 70<<locked>>92%42,047 psi63%3140 fps95.9%
Rottweil R 901<<locked>>80%46,209 psi69%3081 fps100%
Rottweil R 902<<locked>>80%40,321 psi60%2969 fps98.7%
Rottweil R 903<<locked>>80%33,649 psi50%2854 fps96.4%
Rottweil R 907<<locked>>94%51,459 psi77%3202 fps95.7%
Shooters World Long Rifle<<locked>>88%40,857 psi61%2992 fps95%
Shooters World Match Rifle<<locked>>80%42,496 psi64%3054 fps99.8%
Shooters World Precision<<locked>>80%38,580 psi58%2949 fps98.4%
Shooters World SW4350<<locked>>94%47,108 psi71%3146 fps95.6%
Shooters World Tactical Rifle<<locked>>80%54,404 psi82%3215 fps99.9%
SNPE Vectan SP 11<<locked>>80%34,983 psi52%2917 fps95.9%
SNPE Vectan SP 3<<locked>>80%53,998 psi81%3199 fps100%
SNPE Vectan SP 7<<locked>>80%43,918 psi66%3061 fps96.7%
SNPE Vectan SP 9<<locked>>80%42,235 psi63%3045 fps98.1%
SNPE Vectan Tubal 3000<<locked>>80%43,903 psi66%2986 fps100%
SNPE Vectan Tubal 5000<<locked>>80%36,434 psi55%2825 fps99.9%
SNPE Vectan Tubal 7000<<locked>>92%46,224 psi69%3051 fps95.1%
Somchem S321<<locked>>80%49,603 psi74%3186 fps99.9%
Somchem S335<<locked>>80%43,468 psi65%2982 fps100%
Somchem S341<<locked>>80%43,743 psi66%3061 fps98.3%
Somchem S355<<locked>>80%34,621 psi52%2867 fps96.5%
Somchem S365<<locked>>84%28,529 psi43%2779 fps95.2%
Unknown powder<<locked>>88%40,030 psi60%3045 fps95.4%
Vihtavuori N130<<locked>>80%49,676 psi74%3064 fps100%
Vihtavuori N133<<locked>>80%44,251 psi66%2982 fps100%
Vihtavuori N135<<locked>>80%39,726 psi60%2959 fps100%
Vihtavuori N140<<locked>>80%40,524 psi61%2966 fps100%
Vihtavuori N150<<locked>>80%32,909 psi49%2799 fps97.4%
Vihtavuori N160<<locked>>88%38,421 psi58%2979 fps95.6%
Vihtavuori N530<<locked>>80%45,847 psi69%3091 fps99.5%
Vihtavuori N540<<locked>>80%39,189 psi59%2949 fps99.7%
Vihtavuori N550<<locked>>88%37,869 psi57%2979 fps95.2%
Vihtavuori N555<<locked>>96%36,201 psi54%3015 fps95.9%
Winchester 6.5 StaBALL<<locked>>82%31,459 psi47%2762 fps95.2%
Winchester 748<<locked>>80%49,226 psi74%3212 fps100%
Winchester 760<<locked>>90%46,369 psi70%3192 fps95.2%
Winchester StaBALL HD<<locked>>98%31,807 psi48%2946 fps95.5%
Winchester StaBALL Match<<locked>>80%52,315 psi78%3255 fps99.8%

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 119 powders for 8 mm Rem. Mag. loaded with the .323 | 145gr | Brenneke TIG nature. Alliant Reloder-17 delivers the highest muzzle velocity at 3,488 fps; across all powders the maximum-charge window runs from 2,057 fps to 3,488 fps. Accurate 3100 gives the best case fill at 100 %, and 119 of the 119 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (460 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 145.0 gr projectile in 0.323" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 8 mm Rem. Mag. with the .323 | 145gr | Brenneke TIG nature they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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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