Load data for 5.6 x 50 R Mag. + .224 | 55gr | Sierra Tipped VarmintKing

5.6 x 50 R Mag. cartridge drawing
Sierra logo

Load Specifications

Bullet Manufacturer:Sierra
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:1:8.5

Load data in caliber 5.6 x 50 R Mag. with .224 | 55gr | Sierra Tipped VarmintKing bullet and 34 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%42,322 psi86%3031 fps98.8%
Accurate 2460<<locked>>90%43,729 psi89%3068 fps96.5%
Accurate 2495ᴾ<<locked>>100%42,757 psi87%3100 fps99.2%
Accurate 2520<<locked>>94%44,164 psi90%3114 fps96.2%
Accurate 4064ᴾ<<locked>>100%39,682 psi80%3051 fps96.4%
Accurate LT-30<<locked>>84%42,366 psi86%2949 fps97.6%
ADI AR 2207<<locked>>82%42,322 psi86%3028 fps100%
ADI AR 2219<<locked>>86%42,975 psi87%3091 fps97.6%
Alliant AR-Comp<<locked>>94%41,611 psi84%3114 fps100%
Alliant Reloder-10x<<locked>>88%42,685 psi87%3068 fps99.5%
Alliant Reloder-7<<locked>>82%43,598 psi88%3025 fps99.8%
Baschieri & Pellagri 106<<locked>>86%44,092 psi89%2989 fps98.3%
Hodgdon H322<<locked>>90%44,585 psi90%3123 fps97.9%
Hodgdon H335<<locked>>88%42,931 psi87%3081 fps96.6%
Hodgdon H4198<<locked>>82%44,077 psi89%3005 fps97.4%
Hodgdon TrailBossᴾ<<locked>>100%32,111 psi65%2018 fps100%
IMR 3031<<locked>>96%42,206 psi86%3136 fps98.3%
IMR 4198<<locked>>88%44,338 psi90%3061 fps99.9%
Norma 200<<locked>>84%42,902 psi87%3051 fps99.8%
Norma 202<<locked>>96%43,294 psi88%3091 fps96.8%
ReloadSwiss RS 14ᴾ<<locked>>100%32,097 psi65%2067 fps100%
ReloadSwiss RS 40<<locked>>90%44,338 psi90%3084 fps95.7%
Rottweil R 901<<locked>>92%41,727 psi85%3025 fps95.9%
SNPE Vectan SP 10<<locked>>86%43,874 psi89%3097 fps96.7%
SNPE Vectan SP 3<<locked>>88%43,700 psi89%3077 fps98.5%
SNPE Vectan Tubal 3000<<locked>>94%43,976 psi89%3005 fps96.7%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%42,221 psi86%2979 fps97.4%
Somchem S335<<locked>>94%42,438 psi86%2995 fps97.3%
Vihtavuori N120<<locked>>82%42,453 psi86%2982 fps100%
Vihtavuori N130<<locked>>90%43,627 psi88%3015 fps99.5%
Vihtavuori N133<<locked>>94%43,294 psi88%3015 fps98.9%
Vihtavuori N135ᴾ<<locked>>100%43,627 psi88%3110 fps99.2%
Vihtavuori N140<<locked>>98%43,801 psi89%3068 fps97.2%
Vihtavuori N540<<locked>>98%42,511 psi86%3051 fps96.3%

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>>82%30,850 psi63%2759 fps95.6%
Accurate 2460<<locked>>88%40,727 psi83%3005 fps95.7%
Accurate 2495<<locked>>88%28,369 psi58%2753 fps95.1%
Accurate 2520<<locked>>92%40,944 psi83%3048 fps95.3%
Accurate 4064<<locked>>98%37,275 psi76%2999 fps95.6%
Accurate LT-30<<locked>>80%37,710 psi76%2844 fps96.3%
ADI AR 2207<<locked>>80%39,784 psi81%2976 fps100%
ADI AR 2219<<locked>>80%35,012 psi71%2904 fps95.1%
Alliant AR-Comp21.4 gr80%26,527 psi54%2703 fps96.3%
Alliant Reloder-10x<<locked>>80%33,431 psi68%2854 fps97.7%
Alliant Reloder-7<<locked>>80%41,147 psi83%2972 fps99.5%
Baschieri & Pellagri 106<<locked>>80%36,100 psi73%2815 fps96.3%
Hodgdon H32223.2 gr84%36,738 psi75%2946 fps95.8%
Hodgdon H335<<locked>>86%39,987 psi81%3018 fps95.7%
Hodgdon H4198<<locked>>80%41,510 psi84%2949 fps96.7%
Hodgdon TrailBoss<<locked>>80%23,438 psi48%1804 fps100%
IMR 303123.5 gr88%32,721 psi66%2900 fps95.2%
IMR 4198<<locked>>80%34,809 psi71%2848 fps98.8%
Norma 200<<locked>>80%37,594 psi76%2936 fps99.2%
Norma 202<<locked>>92%38,000 psi77%2972 fps95.2%
ReloadSwiss RS 14<<locked>>80%23,569 psi48%1854 fps100%
ReloadSwiss RS 40<<locked>>88%41,800 psi85%3031 fps95%
Rottweil R 901<<locked>>90%39,378 psi80%2969 fps95.2%
SNPE Vectan SP 10<<locked>>84%40,915 psi83%3031 fps95.9%
SNPE Vectan SP 3<<locked>>80%33,736 psi68%2848 fps95.7%
SNPE Vectan Tubal 3000<<locked>>90%38,493 psi78%2890 fps95.1%
SNPE Vectan Tubal 5000<<locked>>94%35,288 psi72%2825 fps95.3%
Somchem S335<<locked>>88%35,317 psi72%2835 fps95.2%
Vihtavuori N120<<locked>>80%39,914 psi81%2933 fps100%
Vihtavuori N130<<locked>>80%31,952 psi65%2753 fps96.9%
Vihtavuori N133<<locked>>84%31,343 psi64%2740 fps95.6%
Vihtavuori N135<<locked>>88%29,747 psi60%2779 fps95.3%
Vihtavuori N140<<locked>>94%38,421 psi78%2953 fps95.7%
Vihtavuori N540<<locked>>96%39,639 psi80%2989 fps95.5%

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 34 powders for 5.6 x 50 R Mag. loaded with the .224 | 55gr | Sierra Tipped VarmintKing. IMR 3031 delivers the highest muzzle velocity at 3,136 fps; across all powders the maximum-charge window runs from 2,018 fps to 3,136 fps. Accurate 2495 gives the best case fill at 100 %, and 34 of the 34 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 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, Hodgdon TrailBoss 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 | Sierra Tipped VarmintKing 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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