Load data for 8 x 60 S + .323 | 175gr | Atomic 29 HP

8 x 60 S cartridge drawing
Atomic 29 logo

Load Specifications

Bullet Manufacturer:Atomic 29
Bullet Weight:175 gr
Bullet Diameter:0.323"
Bullet Length:<<locked>>
Case Length (l3):2.362"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:67 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:58,740 psi
Recommended Twist Rate:1:13.5

Load data in caliber 8 x 60 S with .323 | 175gr | Atomic 29 HP bullet and 84 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 52 and Hodgdon CFE223.

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>>90%51,111 psi87%2648 fps100%
Accurate 2200<<locked>>82%51,924 psi88%2730 fps97.8%
Accurate 2230<<locked>>82%52,417 psi89%2740 fps98.2%
Accurate 2460<<locked>>88%53,127 psi90%2717 fps100%
Accurate 2495<<locked>>96%50,546 psi86%2694 fps100%
Accurate 2520<<locked>>90%50,647 psi86%2717 fps99.9%
Accurate 4064<<locked>>98%50,415 psi86%2730 fps100%
Accurate LT-30<<locked>>84%52,257 psi89%2605 fps100%
Accurate LT-32<<locked>>84%52,707 psi90%2625 fps100%
ADI AR 2206H<<locked>>92%50,473 psi86%2720 fps98.4%
ADI AR 2208<<locked>>98%51,488 psi88%2713 fps97.9%
ADI AR 2219<<locked>>84%52,011 psi89%2713 fps100%
ADI Benchmark 8208<<locked>>90%50,082 psi85%2684 fps99.2%
Alliant AR-Comp<<locked>>92%52,098 psi89%2720 fps100%
Alliant Power Pro 1200-R<<locked>>86%50,981 psi87%2779 fps98.9%
Alliant Power Pro 2000-MR<<locked>>96%53,069 psi90%2861 fps98%
Alliant Reloder- TS 15.5<<locked>>98%50,140 psi85%2730 fps99%
Alliant Reloder-10x<<locked>>86%51,314 psi87%2661 fps100%
Alliant Reloder-15<<locked>>96%50,908 psi87%2746 fps98%
Alliant Reloder-17ᴾ<<locked>>100%47,297 psi81%2769 fps98.2%
Baschieri & Pellagri 106<<locked>>84%51,169 psi87%2602 fps100%
Baschieri & Pellagri 107<<locked>>92%49,995 psi85%2726 fps97.3%
Bofors RP3<<locked>>98%49,821 psi85%2740 fps99%
Hodgdon Benchmark<<locked>>90%52,373 psi89%2677 fps99.6%
Hodgdon BL-C2<<locked>>92%51,387 psi87%2756 fps99.6%
Hodgdon CFE223<<locked>>88%49,748 psi85%2785 fps97.8%
Hodgdon H322<<locked>>86%50,459 psi86%2694 fps100%
Hodgdon H335<<locked>>86%51,576 psi88%2717 fps100%
Hodgdon H380<<locked>>98%51,953 psi88%2749 fps96.9%
Hodgdon H4895<<locked>>92%50,894 psi87%2733 fps98.8%
Hodgdon LEVERevolution<<locked>>96%52,489 psi89%2808 fps99.4%
Hodgdon TrailBossᴾ<<locked>>100%34,011 psi58%1647 fps100%
Hodgdon VARGET<<locked>>94%52,475 psi89%2736 fps99%
IMR 3031<<locked>>94%52,750 psi90%2776 fps100%
IMR 4064<<locked>>96%50,792 psi86%2697 fps98%
IMR 4198<<locked>>86%52,257 psi89%2628 fps100%
IMR 4895<<locked>>96%52,141 psi89%2779 fps98.7%
IMR 8208 XBR<<locked>>90%50,082 psi85%2684 fps99.2%
Lovex D073.4<<locked>>82%52,997 psi90%2723 fps99.9%
Lovex D073.5<<locked>>88%53,127 psi90%2723 fps99.8%
Lovex D073.6<<locked>>94%52,083 psi89%2749 fps100%
Lovex S060<<locked>>92%51,256 psi87%2657 fps98.4%
Lovex S062<<locked>>98%53,156 psi90%2743 fps99.5%
Norma 200<<locked>>82%51,039 psi87%2631 fps100%
Norma 201<<locked>>94%52,098 psi89%2717 fps99.4%
Norma 202<<locked>>94%52,533 psi89%2730 fps100%
Norma 203B<<locked>>96%49,980 psi85%2733 fps98.3%
Ramshot Big Game<<locked>>96%50,314 psi86%2756 fps98.2%
Ramshot TAC<<locked>>90%50,546 psi86%2687 fps95.8%
Ramshot Wild Boar<<locked>>92%52,750 psi90%2759 fps98.6%
Ramshot X-Terminator<<locked>>88%51,387 psi87%2684 fps98.3%
ReloadSwiss RS 14ᴾ<<locked>>100%34,026 psi58%1683 fps100%
ReloadSwiss RS 40<<locked>>88%53,084 psi90%2723 fps99.9%
ReloadSwiss RS 52<<locked>>94%50,328 psi86%2805 fps97.9%
ReloadSwiss RS 60ᴾ<<locked>>100%50,705 psi86%2841 fps100%
Rottweil R 901<<locked>>92%52,939 psi90%2707 fps100%
Rottweil R 902<<locked>>96%52,591 psi90%2713 fps99.4%
Rottweil R 903ᴾ<<locked>>100%49,356 psi84%2723 fps98.7%
Shooters World AR Plus<<locked>>82%52,997 psi90%2723 fps99.9%
Shooters World Match Rifle<<locked>>94%52,083 psi89%2749 fps100%
Shooters World Precision<<locked>>98%53,156 psi90%2743 fps99.5%
Shooters World Tactical Rifle<<locked>>86%53,113 psi90%2690 fps99.2%
SNPE Vectan SP 10<<locked>>84%52,228 psi89%2720 fps100%
SNPE Vectan SP 11ᴾ<<locked>>100%51,909 psi88%2789 fps98.5%
SNPE Vectan SP 3<<locked>>92%51,430 psi88%2625 fps100%
SNPE Vectan SP 7<<locked>>92%51,532 psi88%2710 fps96.6%
SNPE Vectan SP 9<<locked>>94%52,069 psi89%2740 fps98.5%
SNPE Vectan Tubal 3000<<locked>>92%51,561 psi88%2631 fps100%
SNPE Vectan Tubal 5000<<locked>>98%50,879 psi87%2625 fps100%
Somchem S321<<locked>>88%50,734 psi86%2717 fps99.4%
Somchem S335<<locked>>92%50,560 psi86%2631 fps100%
Somchem S341<<locked>>92%51,140 psi87%2710 fps98.3%
Somchem S355ᴾ<<locked>>100%50,459 psi86%2726 fps98.7%
Somchem S365ᴾ<<locked>>100%35,984 psi61%2546 fps96.6%
Vihtavuori N130<<locked>>88%51,721 psi88%2615 fps100%
Vihtavuori N133<<locked>>92%51,430 psi88%2625 fps100%
Vihtavuori N135<<locked>>96%51,256 psi87%2694 fps100%
Vihtavuori N140<<locked>>94%49,821 psi85%2664 fps100%
Vihtavuori N150ᴾ<<locked>>100%48,791 psi83%2667 fps99.3%
Vihtavuori N530<<locked>>90%50,343 psi86%2684 fps99.2%
Vihtavuori N540<<locked>>96%51,329 psi87%2707 fps100%
Winchester 6.5 StaBALLᴾ<<locked>>100%44,759 psi76%2608 fps97.6%
Winchester 748<<locked>>92%52,533 psi89%2776 fps99.8%
Winchester StaBALL Match<<locked>>94%51,445 psi88%2746 fps98.9%

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%37,231 psi63%2421 fps99.9%
Accurate 2200<<locked>>80%48,602 psi83%2674 fps97.2%
Accurate 2230<<locked>>80%48,675 psi83%2677 fps97.6%
Accurate 2460<<locked>>80%40,292 psi69%2507 fps99.2%
Accurate 2495<<locked>>80%29,370 psi50%2310 fps99.2%
Accurate 2520<<locked>>80%35,679 psi61%2454 fps98%
Accurate 4064<<locked>>80%27,818 psi47%2283 fps96.5%
Accurate LT-30<<locked>>80%46,180 psi79%2516 fps100%
Accurate LT-32<<locked>>80%46,557 psi79%2530 fps99.6%
ADI AR 2206H<<locked>>84%39,030 psi66%2510 fps95.7%
ADI AR 2208<<locked>>90%40,016 psi68%2510 fps95.1%
ADI AR 2219<<locked>>80%45,208 psi77%2612 fps100%
ADI Benchmark 8208<<locked>>80%36,260 psi62%2428 fps96.3%
Alliant AR-Comp<<locked>>80%34,650 psi59%2444 fps100%
Alliant Power Pro 1200-R<<locked>>80%41,626 psi71%2612 fps97.2%
Alliant Power Pro 2000-MR52.3 gr90%43,410 psi74%2684 fps95.6%
Alliant Reloder- TS 15.5<<locked>>86%33,852 psi58%2425 fps95.2%
Alliant Reloder-10x<<locked>>80%42,496 psi72%2523 fps100%
Alliant Reloder-15<<locked>>88%39,465 psi67%2539 fps95.3%
Alliant Reloder-17<<locked>>94%38,508 psi66%2589 fps95.7%
Baschieri & Pellagri 106<<locked>>80%44,817 psi76%2507 fps100%
Baschieri & Pellagri 107<<locked>>88%43,497 psi74%2615 fps95.7%
Bofors RP3<<locked>>86%33,011 psi56%2418 fps95%
Hodgdon Benchmark<<locked>>80%38,421 psi65%2431 fps97.5%
Hodgdon BL-C2<<locked>>80%33,982 psi58%2431 fps96.3%
Hodgdon CFE22348.7 gr82%40,219 psi68%2605 fps95.4%
Hodgdon H322<<locked>>80%41,452 psi71%2546 fps99.8%
Hodgdon H335<<locked>>80%41,930 psi71%2559 fps99.5%
Hodgdon H380<<locked>>94%45,440 psi77%2641 fps95.4%
Hodgdon H4895<<locked>>82%36,767 psi63%2470 fps95.7%
Hodgdon LEVERevolution<<locked>>84%34,998 psi60%2477 fps95.5%
Hodgdon TrailBoss<<locked>>80%25,077 psi43%1467 fps100%
Hodgdon VARGET<<locked>>82%35,723 psi61%2428 fps95.2%
IMR 3031<<locked>>80%32,924 psi56%2428 fps99.3%
IMR 4064<<locked>>88%39,581 psi67%2497 fps95.3%
IMR 4198<<locked>>80%43,787 psi75%2503 fps100%
IMR 4895<<locked>>86%37,782 psi64%2520 fps95.5%
IMR 8208 XBR<<locked>>80%36,260 psi62%2428 fps96.3%
Lovex D073.4<<locked>>80%49,240 psi84%2667 fps99.8%
Lovex D073.5<<locked>>80%40,089 psi68%2507 fps98.3%
Lovex D073.6<<locked>>80%31,923 psi54%2379 fps96.8%
Lovex S060<<locked>>82%37,753 psi64%2415 fps95.3%
Lovex S062<<locked>>84%34,026 psi58%2395 fps95.7%
Norma 200<<locked>>80%48,095 psi82%2589 fps100%
Norma 201<<locked>>80%33,518 psi57%2365 fps95.5%
Norma 202<<locked>>80%33,460 psi57%2385 fps98%
Norma 203B<<locked>>88%38,682 psi66%2530 fps95.7%
Ramshot Big Game<<locked>>88%38,479 psi66%2539 fps95.2%
Ramshot TAC<<locked>>88%47,239 psi80%2631 fps95%
Ramshot Wild Boar<<locked>>82%37,608 psi64%2490 fps95.2%
Ramshot X-Terminator<<locked>>80%39,378 psi67%2470 fps95.6%
ReloadSwiss RS 14<<locked>>80%25,193 psi43%1503 fps100%
ReloadSwiss RS 40<<locked>>80%40,930 psi70%2520 fps98.7%
ReloadSwiss RS 5249.5 gr88%40,843 psi70%2635 fps95.7%
ReloadSwiss RS 60<<locked>>86%31,749 psi54%2431 fps95.5%
Rottweil R 901<<locked>>80%36,782 psi63%2425 fps98.5%
Rottweil R 902<<locked>>82%33,852 psi58%2369 fps95.6%
Rottweil R 903<<locked>>90%35,288 psi60%2461 fps95.4%
Shooters World AR Plus<<locked>>80%49,240 psi84%2667 fps99.8%
Shooters World Match Rifle<<locked>>80%31,923 psi54%2379 fps96.8%
Shooters World Precision<<locked>>84%34,026 psi58%2395 fps95.7%
Shooters World Tactical Rifle<<locked>>80%43,366 psi74%2533 fps97.8%
SNPE Vectan SP 10<<locked>>80%45,701 psi78%2618 fps99.8%
SNPE Vectan SP 11<<locked>>92%39,929 psi68%2575 fps95.8%
SNPE Vectan SP 3<<locked>>80%35,375 psi60%2359 fps99.8%
SNPE Vectan SP 7<<locked>>88%44,860 psi76%2598 fps95.1%
SNPE Vectan SP 9<<locked>>84%37,623 psi64%2477 fps95.2%
SNPE Vectan Tubal 3000<<locked>>80%35,317 psi60%2349 fps98.3%
SNPE Vectan Tubal 5000<<locked>>80%28,645 psi49%2215 fps97.4%
Somchem S321<<locked>>80%38,551 psi66%2497 fps97.3%
Somchem S335<<locked>>80%34,824 psi59%2356 fps98.9%
Somchem S341<<locked>>84%38,740 psi66%2493 fps95.5%
Somchem S355<<locked>>90%36,738 psi63%2477 fps95.6%
Somchem S365<<locked>>98%33,750 psi57%2487 fps95.7%
Vihtavuori N130<<locked>>80%40,263 psi69%2438 fps100%
Vihtavuori N133<<locked>>80%35,375 psi60%2359 fps99.8%
Vihtavuori N135<<locked>>80%30,327 psi52%2323 fps99.3%
Vihtavuori N140<<locked>>80%31,488 psi54%2323 fps97.7%
Vihtavuori N150<<locked>>86%30,734 psi52%2320 fps95%
Vihtavuori N530<<locked>>80%36,042 psi61%2421 fps96.4%
Vihtavuori N540<<locked>>80%30,342 psi52%2310 fps96.8%
Winchester 6.5 StaBALL<<locked>>94%36,463 psi62%2441 fps95%
Winchester 748<<locked>>80%34,621 psi59%2451 fps96.8%
Winchester StaBALL Match<<locked>>84%36,593 psi62%2477 fps95.7%

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 108 powders for 8 x 60 S loaded with the .323 | 175gr | Atomic 29 HP. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,861 fps; across all powders the maximum-charge window runs from 1,647 fps to 2,861 fps. Accurate 4350 gives the best case fill at 100 %, and 108 of the 108 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (405 MPa), the top charges use 58–90 %, 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 4350, Alliant Reloder-16, Alliant Reloder-17 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 52, Hodgdon CFE223 rank at the top here: for 8 x 60 S with the .323 | 175gr | Atomic 29 HP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 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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