Load data for 5.6 x 50 R Mag. + .224 | 55gr | Prvi Partizan SP

5.6 x 50 R Mag. cartridge drawing
Prvi Partizan logo

Load Specifications

Bullet Manufacturer:Prvi Partizan
Bullet Weight:55 gr
Bullet Diameter:0.224"
Bullet Length:<<locked>>
Case Length (l3):1.968"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:34 Grains of Water
Primer Size:Small Rifle (SR)
Barrel Length:23.62"
Max. allowed Pressure:49,313 psi
Recommended Twist Rate:1:13.0

Load data in caliber 5.6 x 50 R Mag. with .224 | 55gr | Prvi Partizan SP bullet and 35 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, Alliant AR-Comp and IMR 3031.

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%44,106 psi89%3077 fps99.3%
Accurate 2460<<locked>>88%42,801 psi87%3064 fps96.6%
Accurate 2495<<locked>>98%42,395 psi86%3104 fps99.3%
Accurate 2520<<locked>>94%44,179 psi90%3140 fps96.5%
Accurate 4064ᴾ<<locked>>100%42,337 psi86%3120 fps97.4%
Accurate LT-30<<locked>>84%44,077 psi89%3002 fps98.2%
Accurate LT-32<<locked>>84%44,425 psi90%3009 fps96.4%
ADI AR 2207<<locked>>82%43,947 psi89%3071 fps100%
ADI AR 2219<<locked>>84%42,148 psi85%3087 fps97.7%
Alliant AR-Comp<<locked>>94%43,845 psi89%3169 fps100%
Alliant Reloder-10x<<locked>>86%42,134 psi85%3068 fps99.6%
Baschieri & Pellagri 106<<locked>>84%42,627 psi86%2976 fps98.3%
Hodgdon H322<<locked>>90%43,120 psi87%3107 fps97.9%
Hodgdon H335<<locked>>86%44,411 psi90%3123 fps97.3%
Hodgdon H4198<<locked>>82%42,902 psi87%2999 fps97.4%
Hodgdon TrailBossᴾ<<locked>>100%32,605 psi66%2044 fps100%
IMR 3031<<locked>>98%42,801 psi87%3166 fps98.6%
IMR 4198<<locked>>86%43,250 psi88%3051 fps99.9%
Lovex D073.6<<locked>>96%44,179 psi90%3140 fps96.5%
Norma 200<<locked>>82%41,930 psi85%3041 fps99.8%
Norma 202<<locked>>94%42,380 psi86%3084 fps96.8%
ReloadSwiss RS 14ᴾ<<locked>>100%32,111 psi65%2080 fps100%
Rottweil R 901<<locked>>92%43,932 psi89%3084 fps96.9%
Shooters World Match Rifle<<locked>>96%44,179 psi90%3140 fps96.5%
SNPE Vectan SP 10<<locked>>84%42,496 psi86%3081 fps96.6%
SNPE Vectan SP 3<<locked>>86%42,496 psi86%3064 fps98.4%
SNPE Vectan Tubal 3000<<locked>>92%42,438 psi86%2992 fps96.6%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%44,164 psi90%3031 fps98.1%
Somchem S335<<locked>>94%44,367 psi90%3048 fps98%
Vihtavuori N120<<locked>>84%43,613 psi88%3012 fps100%
Vihtavuori N130<<locked>>90%44,251 psi90%3048 fps99.7%
Vihtavuori N133<<locked>>96%44,063 psi89%3048 fps99.2%
Vihtavuori N135<<locked>>98%43,279 psi88%3114 fps99.3%
Vihtavuori N140<<locked>>96%42,134 psi85%3051 fps97.2%
Vihtavuori N540<<locked>>96%41,872 psi85%3068 fps96.6%

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%29,936 psi61%2743 fps95.5%
Accurate 2460<<locked>>86%39,929 psi81%3002 fps95.8%
Accurate 2495<<locked>>86%27,818 psi56%2743 fps95.1%
Accurate 2520<<locked>>92%41,104 psi83%3077 fps95.7%
Accurate 4064<<locked>>96%36,680 psi74%2992 fps95.7%
Accurate LT-30<<locked>>80%38,914 psi79%2890 fps97%
Accurate LT-32<<locked>>82%41,539 psi84%2946 fps95.6%
ADI AR 2207<<locked>>80%40,973 psi83%3012 fps100%
ADI AR 2219<<locked>>80%36,593 psi74%2959 fps96.1%
Alliant AR-Comp22.2 gr80%27,601 psi56%2756 fps97.2%
Alliant Reloder-10x<<locked>>80%34,476 psi70%2890 fps98.2%
Baschieri & Pellagri 106<<locked>>80%37,463 psi76%2864 fps97%
Hodgdon H32223.4 gr84%35,360 psi72%2927 fps95.6%
Hodgdon H335<<locked>>82%38,740 psi79%3002 fps95.7%
Hodgdon H4198<<locked>>80%40,045 psi81%2936 fps96.7%
Hodgdon TrailBoss<<locked>>80%23,728 psi48%1827 fps100%
IMR 303124.1 gr90%33,040 psi67%2923 fps95.7%
IMR 4198<<locked>>80%36,260 psi74%2900 fps99.2%
Lovex D073.6<<locked>>94%41,104 psi83%3077 fps95.7%
Norma 200<<locked>>80%39,088 psi79%2982 fps99.5%
Norma 202<<locked>>90%37,275 psi76%2969 fps95.2%
ReloadSwiss RS 14<<locked>>80%23,844 psi48%1873 fps100%
Rottweil R 901<<locked>>88%38,841 psi79%2972 fps95.4%
Shooters World Match Rifle<<locked>>94%41,104 psi83%3077 fps95.7%
SNPE Vectan SP 10<<locked>>82%39,726 psi81%3018 fps95.8%
SNPE Vectan SP 3<<locked>>80%35,143 psi71%2897 fps96.5%
SNPE Vectan Tubal 3000<<locked>>88%37,782 psi77%2887 fps95.2%
SNPE Vectan Tubal 5000<<locked>>92%34,127 psi69%2812 fps95.3%
Somchem S335<<locked>>86%34,360 psi70%2825 fps95.2%
Vihtavuori N120<<locked>>80%38,319 psi78%2910 fps100%
Vihtavuori N130<<locked>>80%32,416 psi66%2779 fps97.4%
Vihtavuori N133<<locked>>84%30,371 psi62%2726 fps95.5%
Vihtavuori N135<<locked>>86%29,124 psi59%2772 fps95.4%
Vihtavuori N140<<locked>>92%37,130 psi75%2940 fps95.6%
Vihtavuori N540<<locked>>92%36,985 psi75%2956 fps95%

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 35 powders for 5.6 x 50 R Mag. loaded with the .224 | 55gr | Prvi Partizan SP. Alliant AR-Comp delivers the highest muzzle velocity at 3,169 fps; across all powders the maximum-charge window runs from 2,044 fps to 3,169 fps. Accurate 4064 gives the best case fill at 100 %, and 35 of the 35 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (340 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.224" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Hodgdon TrailBoss, ReloadSwiss RS 14 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. Hodgdon H322, Alliant AR-Comp, IMR 3031 rank at the top here: for 5.6 x 50 R Mag. with the .224 | 55gr | Prvi Partizan SP they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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