Load data for 5.6 x 50 R Mag. + .224 | 55gr | Speer SP w/C

5.6 x 50 R Mag. cartridge drawing
Speer logo

Load Specifications

Bullet Manufacturer:Speer
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:1:12.5

Load data in caliber 5.6 x 50 R Mag. with .224 | 55gr | Speer SP w/C 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%44,048 psi89%3077 fps99.2%
Accurate 2460<<locked>>88%42,757 psi87%3061 fps96.6%
Accurate 2495<<locked>>98%41,742 psi85%3087 fps99.2%
Accurate 2520<<locked>>94%44,121 psi89%3136 fps96.5%
Accurate 4064ᴾ<<locked>>100%41,756 psi85%3104 fps97.2%
Accurate LT-30<<locked>>84%44,005 psi89%2999 fps98.2%
Accurate LT-32<<locked>>84%44,353 psi90%3005 fps96.4%
ADI AR 2207<<locked>>82%43,830 psi89%3064 fps100%
ADI AR 2219<<locked>>86%44,570 psi90%3136 fps98.2%
Alliant AR-Comp<<locked>>94%43,207 psi88%3156 fps100%
Alliant Reloder-10x<<locked>>88%44,541 psi90%3114 fps99.8%
Baschieri & Pellagri 106<<locked>>84%42,554 psi86%2969 fps98.2%
Hodgdon H322<<locked>>90%42,569 psi86%3094 fps97.7%
Hodgdon H335<<locked>>86%44,353 psi90%3123 fps97.2%
Hodgdon H4198<<locked>>82%42,772 psi87%2992 fps97.3%
Hodgdon TrailBossᴾ<<locked>>100%32,329 psi66%2037 fps100%
IMR 3031<<locked>>98%42,192 psi86%3150 fps98.5%
IMR 4198<<locked>>86%43,134 psi87%3051 fps99.9%
Lovex D073.6<<locked>>96%43,627 psi88%3123 fps96.3%
Norma 200<<locked>>84%44,266 psi90%3087 fps99.9%
Norma 202<<locked>>94%42,308 psi86%3081 fps96.8%
ReloadSwiss RS 14ᴾ<<locked>>100%32,329 psi66%2083 fps100%
Rottweil R 901<<locked>>92%43,366 psi88%3071 fps96.7%
Shooters World Match Rifle<<locked>>96%43,627 psi88%3123 fps96.3%
SNPE Vectan SP 10<<locked>>84%42,409 psi86%3077 fps96.6%
SNPE Vectan SP 3<<locked>>86%42,395 psi86%3061 fps98.4%
SNPE Vectan Tubal 3000<<locked>>92%42,395 psi86%2989 fps96.6%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%44,121 psi89%3031 fps98.1%
Somchem S335<<locked>>94%43,874 psi89%3038 fps97.9%
Vihtavuori N120<<locked>>84%43,497 psi88%3009 fps100%
Vihtavuori N130<<locked>>90%44,208 psi90%3041 fps99.6%
Vihtavuori N133<<locked>>96%43,961 psi89%3045 fps99.2%
Vihtavuori N135<<locked>>98%42,641 psi86%3100 fps99.2%
Vihtavuori N140<<locked>>98%44,570 psi90%3097 fps97.7%
Vihtavuori N540<<locked>>96%41,843 psi85%3064 fps96.5%

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%29,791 psi60%2740 fps95.4%
Accurate 2460<<locked>>86%39,871 psi81%2999 fps95.7%
Accurate 2495<<locked>>86%27,731 psi56%2743 fps95%
Accurate 2520<<locked>>92%41,031 psi83%3071 fps95.6%
Accurate 4064<<locked>>96%36,608 psi74%2989 fps95.7%
Accurate LT-30<<locked>>80%38,798 psi79%2884 fps96.9%
Accurate LT-32<<locked>>82%41,437 psi84%2943 fps95.6%
ADI AR 2207<<locked>>80%40,799 psi83%3005 fps100%
ADI AR 2219<<locked>>80%36,535 psi74%2956 fps96%
Alliant AR-Comp22.1 gr80%27,528 psi56%2753 fps97.1%
Alliant Reloder-10x<<locked>>80%34,360 psi70%2884 fps98.1%
Baschieri & Pellagri 106<<locked>>80%37,434 psi76%2861 fps97%
Hodgdon H32223.3 gr84%35,273 psi72%2923 fps95.5%
Hodgdon H335<<locked>>82%38,261 psi78%2989 fps95.4%
Hodgdon H4198<<locked>>80%39,900 psi81%2930 fps96.6%
Hodgdon TrailBoss<<locked>>80%23,873 psi48%1827 fps100%
IMR 303124 gr90%32,953 psi67%2920 fps95.6%
IMR 4198<<locked>>80%36,100 psi73%2894 fps99.2%
Lovex D073.6<<locked>>94%40,524 psi82%3061 fps95.4%
Norma 200<<locked>>80%38,957 psi79%2976 fps99.5%
Norma 202<<locked>>90%36,811 psi75%2953 fps95%
ReloadSwiss RS 14<<locked>>80%23,583 psi48%1864 fps100%
Rottweil R 901<<locked>>88%38,348 psi78%2956 fps95.2%
Shooters World Match Rifle<<locked>>94%40,524 psi82%3061 fps95.4%
SNPE Vectan SP 10<<locked>>82%39,639 psi80%3015 fps95.8%
SNPE Vectan SP 3<<locked>>80%34,998 psi71%2890 fps96.4%
SNPE Vectan Tubal 3000<<locked>>88%37,246 psi76%2874 fps95%
SNPE Vectan Tubal 5000<<locked>>92%34,055 psi69%2808 fps95.2%
Somchem S335<<locked>>86%34,287 psi70%2822 fps95.1%
Vihtavuori N120<<locked>>80%38,145 psi77%2904 fps100%
Vihtavuori N130<<locked>>80%32,314 psi66%2772 fps97.3%
Vihtavuori N133<<locked>>84%30,255 psi61%2723 fps95.4%
Vihtavuori N135<<locked>>86%29,008 psi59%2766 fps95.3%
Vihtavuori N140<<locked>>92%36,637 psi74%2927 fps95.4%
Vihtavuori N540<<locked>>94%39,088 psi79%3005 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 35 powders for 5.6 x 50 R Mag. loaded with the .224 | 55gr | Speer SP w/C. Alliant AR-Comp delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 2,037 fps to 3,156 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 66–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.224" calls for a 1:12.5 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. Alliant AR-Comp, IMR 3031, Hodgdon H322 rank at the top here: for 5.6 x 50 R Mag. with the .224 | 55gr | Speer SP w/C 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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