Load data for 8 x 68 S + .323 | 175gr | Brenneke TAG

8 x 68 S cartridge drawing
Brenneke logo

Load Specifications

Bullet Manufacturer:Brenneke
Bullet Weight:175 gr
Bullet Diameter:0.323"
Bullet Length:<<locked>>
Case Length (l3):2.657"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:86 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:13.5

Load data in caliber 8 x 68 S with .323 | 175gr | Brenneke TAG bullet and 101 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: 25.6"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>86%57,609 psi90%2881 fps100%
Accurate 2460<<locked>>82%56,014 psi88%2910 fps100%
Accurate 2495<<locked>>90%56,014 psi88%2904 fps100%
Accurate 2520<<locked>>84%54,694 psi86%2927 fps100%
Accurate 2700<<locked>>90%55,825 psi87%2913 fps97.3%
Accurate 4064<<locked>>92%56,130 psi88%2956 fps100%
Accurate 4350ᴾ<<locked>>100%56,347 psi88%3045 fps99.8%
ADI AR 2206H<<locked>>88%57,058 psi89%2995 fps100%
ADI AR 2208<<locked>>92%54,665 psi86%2943 fps99.8%
ADI Benchmark 8208<<locked>>86%56,072 psi88%2943 fps100%
Alliant AR-Comp<<locked>>86%56,884 psi89%2913 fps100%
Alliant Power Pro 2000-MR<<locked>>90%57,000 psi89%3123 fps100%
Alliant Reloder- TS 15.5<<locked>>92%54,404 psi85%2963 fps100%
Alliant Reloder-10x<<locked>>82%57,217 psi90%2887 fps100%
Alliant Reloder-15<<locked>>90%55,129 psi86%2989 fps99.9%
Alliant Reloder-16ᴾ<<locked>>100%54,201 psi85%3051 fps99.8%
Alliant Reloder-17<<locked>>96%55,477 psi87%3091 fps100%
Alliant Reloder-23ᴾ<<locked>>100%38,406 psi60%2772 fps98.7%
Alliant Reloder-26ᴾ<<locked>>100%42,975 psi67%2933 fps97.9%
Baschieri & Pellagri 107<<locked>>88%57,130 psi90%3015 fps99.8%
Bofors RP3<<locked>>92%55,013 psi86%2979 fps100%
Bofors RP7<<locked>>96%55,085 psi86%2943 fps97.4%
Hodgdon Benchmark<<locked>>86%57,624 psi90%2923 fps100%
Hodgdon BL-C2<<locked>>86%55,376 psi87%2972 fps100%
Hodgdon CFE223<<locked>>84%57,740 psi90%3081 fps100%
Hodgdon H322<<locked>>82%56,710 psi89%2933 fps100%
Hodgdon H380<<locked>>92%56,144 psi88%2992 fps99.5%
Hodgdon H414<<locked>>98%55,738 psi87%3045 fps98.2%
Hodgdon H4350<<locked>>96%56,420 psi88%3005 fps97%
Hodgdon H4895<<locked>>88%57,653 psi90%3005 fps100%
Hodgdon Hybrid 100Vᴾ<<locked>>100%50,241 psi79%2920 fps99.9%
Hodgdon LEVERevolution<<locked>>90%57,217 psi90%3038 fps100%
Hodgdon Superformance<<locked>>98%56,855 psi89%3087 fps98%
Hodgdon TrailBossᴾ<<locked>>100%35,302 psi55%1808 fps100%
Hodgdon VARGET<<locked>>88%55,492 psi87%2956 fps100%
IMR 3031<<locked>>88%57,609 psi90%2982 fps100%
IMR 4064<<locked>>92%57,624 psi90%2976 fps100%
IMR 4166 Enduron<<locked>>90%57,682 psi90%2959 fps98.3%
IMR 4198<<locked>>82%57,290 psi90%2841 fps100%
IMR 4350ᴾ<<locked>>100%55,521 psi87%2972 fps97.5%
IMR 4451 Enduron<<locked>>96%57,348 psi90%2982 fps98.2%
IMR 4831ᴾ<<locked>>100%53,098 psi83%2979 fps99.6%
IMR 4895<<locked>>90%56,550 psi89%3018 fps100%
IMR 8208 XBR<<locked>>86%56,072 psi88%2943 fps100%
Lovex D073.5<<locked>>82%55,941 psi88%2923 fps100%
Lovex D073.6<<locked>>88%56,594 psi89%2963 fps100%
Lovex S060<<locked>>88%56,550 psi89%2920 fps100%
Lovex S062<<locked>>92%57,116 psi90%2966 fps100%
Lovex S065<<locked>>98%56,405 psi88%2969 fps99.1%
Lovex S070ᴾ<<locked>>100%57,276 psi90%3005 fps98.5%
Norma 201<<locked>>88%55,448 psi87%2933 fps100%
Norma 202<<locked>>88%56,289 psi88%2936 fps100%
Norma 203B<<locked>>90%54,302 psi85%2972 fps100%
Norma 204ᴾ<<locked>>100%56,434 psi88%3028 fps96.5%
Norma URPᴾ<<locked>>100%55,288 psi87%3031 fps99.7%
Ramshot Big Game<<locked>>90%54,984 psi86%2999 fps100%
Ramshot Hunterᴾ<<locked>>100%54,273 psi85%3028 fps98.7%
Ramshot TAC<<locked>>86%56,449 psi88%2966 fps99.2%
Ramshot Wild Boar<<locked>>86%55,985 psi88%2982 fps100%
Ramshot X-Terminator<<locked>>84%56,884 psi89%2943 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%35,607 psi56%1847 fps100%
ReloadSwiss RS 40<<locked>>82%55,492 psi87%2923 fps100%
ReloadSwiss RS 50<<locked>>92%56,565 psi89%2976 fps98.6%
ReloadSwiss RS 52<<locked>>88%55,666 psi87%3054 fps99.9%
ReloadSwiss RS 60<<locked>>94%55,158 psi86%3087 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%56,275 psi88%3071 fps99.7%
ReloadSwiss RS 70ᴾ<<locked>>100%56,086 psi88%3104 fps99.6%
Rottweil R 901<<locked>>86%56,130 psi88%2913 fps100%
Rottweil R 902<<locked>>90%55,970 psi88%2933 fps100%
Rottweil R 903<<locked>>94%54,868 psi86%2969 fps100%
Rottweil R 907<<locked>>96%55,085 psi86%2943 fps97.4%
Shooters World Long Rifle<<locked>>98%56,405 psi88%2969 fps99.1%
Shooters World Match Rifle<<locked>>88%56,594 psi89%2963 fps100%
Shooters World Precision<<locked>>92%57,116 psi90%2966 fps100%
Shooters World SW4350ᴾ<<locked>>100%57,276 psi90%3005 fps98.5%
SNPE Vectan SP 11<<locked>>94%56,797 psi89%3035 fps100%
SNPE Vectan SP 7<<locked>>86%54,781 psi86%2940 fps99.3%
SNPE Vectan SP 9<<locked>>88%55,477 psi87%2966 fps100%
SNPE Vectan Tubal 3000<<locked>>88%57,246 psi90%2871 fps100%
SNPE Vectan Tubal 5000<<locked>>94%57,551 psi90%2867 fps100%
SNPE Vectan Tubal 7000<<locked>>98%56,840 psi89%2923 fps98.1%
Somchem S321<<locked>>84%57,246 psi90%2976 fps100%
Somchem S335<<locked>>88%56,391 psi88%2867 fps100%
Somchem S341<<locked>>86%54,476 psi85%2933 fps99.9%
Somchem S355<<locked>>94%55,042 psi86%2963 fps100%
Somchem S365ᴾ<<locked>>100%49,603 psi78%2979 fps100%
Vihtavuori N130<<locked>>84%56,782 psi89%2831 fps100%
Vihtavuori N133<<locked>>88%57,479 psi90%2854 fps100%
Vihtavuori N135<<locked>>90%55,680 psi87%2894 fps100%
Vihtavuori N140<<locked>>90%56,855 psi89%2913 fps100%
Vihtavuori N150<<locked>>96%56,942 psi89%2946 fps100%
Vihtavuori N160<<locked>>98%54,404 psi85%2976 fps99.6%
Vihtavuori N530<<locked>>86%56,492 psi89%2943 fps100%
Vihtavuori N540<<locked>>90%54,810 psi86%2910 fps100%
Vihtavuori N550ᴾ<<locked>>100%56,985 psi89%3035 fps99.7%
Vihtavuori N555ᴾ<<locked>>100%41,872 psi66%2848 fps98.5%
Winchester 6.5 StaBALL<<locked>>98%54,839 psi86%2953 fps100%
Winchester 748<<locked>>86%56,594 psi89%2992 fps100%
Winchester 760<<locked>>98%55,999 psi88%3048 fps98.2%
Winchester StaBALL HDᴾ<<locked>>100%34,243 psi54%2766 fps98.4%
Winchester StaBALL Match<<locked>>88%55,274 psi87%2972 fps100%

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

Start Load - Barrel Length: 25.6"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%47,747 psi75%2743 fps100%
Accurate 2460<<locked>>80%52,489 psi82%2861 fps100%
Accurate 2495<<locked>>80%39,958 psi63%2654 fps100%
Accurate 2520<<locked>>80%47,485 psi74%2818 fps100%
Accurate 2700<<locked>>84%45,687 psi72%2740 fps95%
Accurate 4064<<locked>>80%37,855 psi59%2648 fps100%
Accurate 4350<<locked>>86%34,287 psi54%2631 fps95.7%
ADI AR 2206H<<locked>>80%43,990 psi69%2772 fps99.1%
ADI AR 2208<<locked>>80%37,478 psi59%2621 fps97.2%
ADI Benchmark 8208<<locked>>80%46,151 psi72%2782 fps99.9%
Alliant AR-Comp<<locked>>80%46,441 psi73%2769 fps100%
Alliant Power Pro 2000-MR59.9 gr80%40,089 psi63%2805 fps97.8%
Alliant Reloder- TS 15.5<<locked>>80%36,927 psi58%2641 fps98.5%
Alliant Reloder-10x<<locked>>80%53,882 psi84%2841 fps100%
Alliant Reloder-15<<locked>>80%39,697 psi62%2707 fps98%
Alliant Reloder-16<<locked>>86%34,751 psi54%2651 fps95.8%
Alliant Reloder-1759 gr80%31,894 psi50%2602 fps96.6%
Alliant Reloder-23<<locked>>92%29,834 psi47%2543 fps95.4%
Alliant Reloder-26<<locked>>96%37,231 psi58%2799 fps96%
Baschieri & Pellagri 107<<locked>>80%43,366 psi68%2779 fps98.3%
Bofors RP3<<locked>>80%36,521 psi57%2644 fps98.6%
Bofors RP7<<locked>>90%45,600 psi71%2779 fps95.3%
Hodgdon Benchmark<<locked>>80%47,993 psi75%2776 fps100%
Hodgdon BL-C2<<locked>>80%44,991 psi71%2805 fps100%
Hodgdon CFE223<<locked>>80%49,908 psi78%2959 fps99.6%
Hodgdon H322<<locked>>80%53,084 psi83%2884 fps100%
Hodgdon H380<<locked>>80%37,463 psi59%2648 fps96.1%
Hodgdon H414<<locked>>90%42,453 psi67%2805 fps95.2%
Hodgdon H4350<<locked>>92%49,676 psi78%2894 fps95.6%
Hodgdon H4895<<locked>>80%44,425 psi70%2785 fps99.5%
Hodgdon Hybrid 100V<<locked>>84%29,689 psi47%2484 fps95.7%
Hodgdon LEVERevolution<<locked>>80%40,466 psi63%2753 fps99.3%
Hodgdon Superformance<<locked>>92%45,556 psi71%2887 fps95.5%
Hodgdon TrailBoss<<locked>>80%26,281 psi41%1617 fps100%
Hodgdon VARGET<<locked>>80%42,859 psi67%2740 fps99.3%
IMR 3031<<locked>>80%44,063 psi69%2779 fps100%
IMR 4064<<locked>>80%39,349 psi62%2657 fps97.9%
IMR 4166 Enduron<<locked>>82%44,628 psi70%2733 fps95.7%
IMR 4198<<locked>>80%53,896 psi84%2799 fps100%
IMR 4350<<locked>>94%45,876 psi72%2805 fps95.4%
IMR 4451 Enduron<<locked>>88%44,628 psi70%2762 fps95.6%
IMR 4831<<locked>>86%33,315 psi52%2589 fps95.3%
IMR 4895<<locked>>80%40,683 psi64%2736 fps98.7%
IMR 8208 XBR<<locked>>80%46,151 psi72%2782 fps99.9%
Lovex D073.5<<locked>>80%52,185 psi82%2871 fps100%
Lovex D073.6<<locked>>80%43,192 psi68%2753 fps100%
Lovex S060<<locked>>80%44,164 psi69%2713 fps99.2%
Lovex S062<<locked>>80%39,059 psi61%2657 fps99.2%
Lovex S065<<locked>>86%38,638 psi61%2644 fps95.5%
Lovex S070<<locked>>90%41,756 psi65%2733 fps95.2%
Norma 201<<locked>>80%43,004 psi67%2723 fps99.7%
Norma 202<<locked>>80%43,395 psi68%2733 fps100%
Norma 203B<<locked>>80%39,044 psi61%2694 fps98.3%
Norma 204<<locked>>98%52,562 psi82%2963 fps95.6%
Norma URP<<locked>>86%34,722 psi54%2635 fps95.6%
Ramshot Big Game<<locked>>80%38,754 psi61%2707 fps98.1%
Ramshot Hunter<<locked>>90%38,812 psi61%2733 fps95%
Ramshot TAC<<locked>>80%46,064 psi72%2789 fps97.6%
Ramshot Wild Boar<<locked>>80%45,687 psi72%2812 fps99.3%
Ramshot X-Terminator<<locked>>80%49,864 psi78%2835 fps99.7%
ReloadSwiss RS 14<<locked>>80%26,455 psi41%1654 fps100%
ReloadSwiss RS 40<<locked>>80%51,808 psi81%2867 fps100%
ReloadSwiss RS 50<<locked>>82%40,625 psi64%2690 fps95.3%
ReloadSwiss RS 52<<locked>>80%41,959 psi66%2815 fps98.4%
ReloadSwiss RS 6059 gr80%33,997 psi53%2674 fps99.4%
ReloadSwiss RS 62<<locked>>86%34,229 psi54%2651 fps95.2%
ReloadSwiss RS 70<<locked>>88%36,883 psi58%2717 fps95.2%
Rottweil R 901<<locked>>80%46,760 psi73%2766 fps100%
Rottweil R 902<<locked>>80%40,857 psi64%2674 fps99.4%
Rottweil R 903<<locked>>80%34,171 psi54%2582 fps97.7%
Rottweil R 907<<locked>>90%45,600 psi71%2779 fps95.3%
Shooters World Long Rifle<<locked>>86%38,638 psi61%2644 fps95.5%
Shooters World Match Rifle<<locked>>80%43,192 psi68%2753 fps100%
Shooters World Precision<<locked>>80%39,059 psi61%2657 fps99.2%
Shooters World SW4350<<locked>>90%41,756 psi65%2733 fps95.2%
SNPE Vectan SP 11<<locked>>80%35,433 psi56%2638 fps97.2%
SNPE Vectan SP 7<<locked>>80%44,237 psi69%2759 fps97.7%
SNPE Vectan SP 9<<locked>>80%42,714 psi67%2743 fps98.9%
SNPE Vectan Tubal 3000<<locked>>80%44,556 psi70%2680 fps100%
SNPE Vectan Tubal 5000<<locked>>80%36,985 psi58%2543 fps100%
SNPE Vectan Tubal 7000<<locked>>90%43,613 psi68%2703 fps95.5%
Somchem S321<<locked>>80%49,966 psi78%2867 fps100%
Somchem S335<<locked>>80%44,019 psi69%2677 fps100%
Somchem S341<<locked>>80%44,150 psi69%2759 fps99.1%
Somchem S355<<locked>>80%35,128 psi55%2592 fps97.7%
Somchem S365<<locked>>82%27,006 psi42%2464 fps95.9%
Vihtavuori N130<<locked>>80%50,372 psi79%2743 fps100%
Vihtavuori N133<<locked>>80%44,933 psi70%2674 fps100%
Vihtavuori N135<<locked>>80%40,466 psi63%2657 fps100%
Vihtavuori N140<<locked>>80%41,089 psi64%2667 fps100%
Vihtavuori N150<<locked>>80%33,402 psi52%2526 fps98.5%
Vihtavuori N160<<locked>>84%34,084 psi53%2585 fps95.3%
Vihtavuori N530<<locked>>80%46,427 psi73%2785 fps99.9%
Vihtavuori N540<<locked>>80%39,653 psi62%2657 fps100%
Vihtavuori N550<<locked>>86%35,795 psi56%2641 fps95.7%
Vihtavuori N555<<locked>>92%31,908 psi50%2618 fps95.5%
Winchester 6.5 StaBALL<<locked>>80%29,675 psi47%2444 fps95.8%
Winchester 748<<locked>>80%46,079 psi72%2828 fps100%
Winchester 760<<locked>>90%42,656 psi67%2812 fps95.3%
Winchester StaBALL HD<<locked>>96%29,979 psi47%2625 fps96.1%
Winchester StaBALL Match<<locked>>80%42,090 psi66%2746 fps99.2%

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 117 powders for 8 x 68 S loaded with the .323 | 175gr | Brenneke TAG. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,123 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,123 fps. Accurate 3100 gives the best case fill at 100 %, and 117 of the 117 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (440 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 175.0 gr projectile in 0.323" calls for a 1:13.5 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for 8 x 68 S with the .323 | 175gr | Brenneke TAG they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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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