Load data for 8 x 60 RS + .323 | 124gr | Prvi Partizan FMJ BT

8 x 60 RS cartridge drawing
Prvi Partizan logo

Load Specifications

Bullet Manufacturer:Prvi Partizan
Bullet Weight:124 gr
Bullet Diameter:0.323"
Bullet Length:<<locked>>
Case Length (l3):2.362"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:64.2 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:49,313 psi

Load data in caliber 8 x 60 RS with .323 | 124gr | Prvi Partizan FMJ BT bullet and 35 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, IMR 3031 and Hodgdon H322.

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>>92%43,932 psi89%2992 fps99.2%
Accurate 2460<<locked>>88%42,293 psi86%2972 fps96.5%
Accurate 2495ᴾ<<locked>>100%44,367 psi90%3068 fps99.5%
Accurate 2520<<locked>>94%43,555 psi88%3051 fps96.3%
Accurate 4064ᴾ<<locked>>100%41,220 psi84%3022 fps97.1%
Accurate LT-30<<locked>>84%43,947 psi89%2910 fps98.2%
Accurate LT-32<<locked>>84%44,324 psi90%2917 fps96.5%
ADI AR 2207<<locked>>82%43,787 psi89%2972 fps100%
ADI AR 2219<<locked>>86%44,483 psi90%3051 fps98.2%
Alliant AR-Comp<<locked>>94%43,105 psi87%3071 fps100%
Alliant Reloder-10x<<locked>>88%44,469 psi90%3025 fps99.8%
Baschieri & Pellagri 106<<locked>>84%42,221 psi86%2887 fps98.2%
Hodgdon H322<<locked>>90%42,409 psi86%3009 fps97.7%
Hodgdon H335<<locked>>86%43,903 psi89%3035 fps97.1%
Hodgdon H4198<<locked>>82%42,714 psi87%2900 fps97.4%
Hodgdon TrailBossᴾ<<locked>>100%32,648 psi66%1949 fps100%
IMR 3031<<locked>>98%42,076 psi85%3064 fps98.5%
IMR 4198<<locked>>86%43,091 psi87%2956 fps99.9%
Lovex D073.6<<locked>>96%43,062 psi87%3041 fps96.2%
Norma 200<<locked>>84%44,454 psi90%3002 fps100%
Norma 202<<locked>>94%41,858 psi85%2992 fps96.7%
ReloadSwiss RS 14ᴾ<<locked>>100%32,416 psi66%1988 fps100%
Rottweil R 901<<locked>>92%43,294 psi88%2986 fps96.7%
Shooters World Match Rifle<<locked>>96%43,062 psi87%3041 fps96.2%
SNPE Vectan SP 10<<locked>>84%42,279 psi86%2992 fps96.6%
SNPE Vectan SP 3<<locked>>86%42,366 psi86%2976 fps98.5%
SNPE Vectan Tubal 3000<<locked>>92%42,264 psi86%2904 fps96.6%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%43,656 psi89%2946 fps98%
Somchem S335<<locked>>94%43,700 psi89%2956 fps97.9%
Vihtavuori N120<<locked>>82%43,903 psi89%2923 fps100%
Vihtavuori N130<<locked>>88%42,453 psi86%2920 fps99.5%
Vihtavuori N133<<locked>>94%44,440 psi90%2969 fps99.2%
Vihtavuori N135<<locked>>98%42,453 psi86%3018 fps99.2%
Vihtavuori N140<<locked>>96%42,192 psi86%2972 fps97.1%
Vihtavuori N540<<locked>>98%43,439 psi88%3009 fps96.9%

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%29,979 psi61%2661 fps95.6%
Accurate 2460<<locked>>86%39,508 psi80%2913 fps95.7%
Accurate 2495<<locked>>86%27,659 psi56%2661 fps95%
Accurate 2520<<locked>>92%40,553 psi82%2989 fps95.5%
Accurate 4064<<locked>>96%36,216 psi73%2904 fps95.5%
Accurate LT-30<<locked>>80%38,812 psi79%2799 fps97.1%
Accurate LT-32<<locked>>80%39,175 psi79%2805 fps95%
ADI AR 2207<<locked>>80%41,017 psi83%2917 fps100%
ADI AR 2219<<locked>>80%36,245 psi74%2864 fps96%
Alliant AR-Comp43.8 gr80%27,485 psi56%2667 fps97.2%
Alliant Reloder-10x<<locked>>80%34,548 psi70%2802 fps98.3%
Baschieri & Pellagri 106<<locked>>80%37,159 psi75%2776 fps96.9%
Hodgdon H32246.1 gr84%34,983 psi71%2831 fps95.5%
Hodgdon H335<<locked>>82%38,116 psi77%2907 fps95.5%
Hodgdon H4198<<locked>>80%40,103 psi81%2844 fps96.8%
Hodgdon TrailBoss<<locked>>80%23,873 psi48%1739 fps100%
IMR 303147.6 gr90%32,909 psi67%2835 fps95.7%
IMR 4198<<locked>>80%36,143 psi73%2802 fps99.3%
Lovex D073.6<<locked>>94%40,364 psi82%2982 fps95.4%
Norma 200<<locked>>80%39,146 psi79%2894 fps99.6%
Norma 202<<locked>>90%36,869 psi75%2877 fps95.1%
ReloadSwiss RS 14<<locked>>80%23,815 psi48%1778 fps100%
Rottweil R 901<<locked>>88%38,464 psi78%2877 fps95.3%
Shooters World Match Rifle<<locked>>94%40,364 psi82%2982 fps95.4%
SNPE Vectan SP 10<<locked>>82%39,494 psi80%2933 fps95.8%
SNPE Vectan SP 3<<locked>>80%35,041 psi71%2805 fps96.6%
SNPE Vectan Tubal 3000<<locked>>88%37,434 psi76%2795 fps95.1%
SNPE Vectan Tubal 5000<<locked>>92%33,997 psi69%2730 fps95.2%
Somchem S335<<locked>>86%34,229 psi69%2740 fps95.2%
Vihtavuori N120<<locked>>80%41,133 psi83%2874 fps100%
Vihtavuori N130<<locked>>80%33,127 psi67%2707 fps97.7%
Vihtavuori N133<<locked>>82%30,676 psi62%2651 fps95.7%
Vihtavuori N135<<locked>>86%28,964 psi59%2684 fps95.4%
Vihtavuori N140<<locked>>92%37,260 psi76%2861 fps95.7%
Vihtavuori N540<<locked>>94%38,159 psi77%2894 fps95.3%

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 72 powders for 8 x 60 RS loaded with the .323 | 124gr | Prvi Partizan FMJ BT. Hodgdon LEVERevolution delivers the highest muzzle velocity at 3,081 fps; across all powders the maximum-charge window runs from 1,949 fps to 3,081 fps. Accurate 2495 gives the best case fill at 100 %, and 72 of the 72 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (340 MPa), the top charges use 66–90 %, leaving at least 10 % headroom. Accurate 2495, Accurate 4064, ADI AR 2208 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 AR-Comp, IMR 3031, Hodgdon H322 rank at the top here: for 8 x 60 RS with the .323 | 124gr | Prvi Partizan FMJ BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2206H, ADI AR 2208, ADI Benchmark 8208 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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