Load data for 5.6 x 50 Mag. + .224 | 55gr | Sierra SP Blitz

5.6 x 50 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:55,114 psi
Recommended Twist Rate:1:12.0

Load data in caliber 5.6 x 50 Mag. with .224 | 55gr | Sierra SP Blitz bullet and 47 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Alliant AR-Comp and Hodgdon H335.

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 1680<<locked>>82%48,834 psi89%3087 fps100%
Accurate 2015<<locked>>96%49,632 psi90%3176 fps99.8%
Accurate 2460<<locked>>92%48,718 psi88%3176 fps97.9%
Accurate 2495ᴾ<<locked>>100%45,208 psi82%3153 fps99.6%
Accurate 2520<<locked>>96%49,211 psi89%3219 fps97.6%
Accurate 4064ᴾ<<locked>>100%41,887 psi76%3107 fps97.2%
Accurate LT-30<<locked>>88%49,385 psi90%3097 fps99%
Accurate LT-32<<locked>>88%49,806 psi90%3107 fps97.6%
ADI AR 2207<<locked>>86%49,501 psi90%3163 fps100%
ADI AR 2219<<locked>>88%48,022 psi87%3202 fps98.8%
Alliant AR-Comp<<locked>>98%49,516 psi90%3268 fps100%
Alliant Reloder-10x<<locked>>90%47,355 psi86%3166 fps99.9%
Alliant Reloder-7<<locked>>84%47,761 psi87%3114 fps100%
Baschieri & Pellagri 106<<locked>>88%48,530 psi88%3081 fps99.2%
Hodgdon Benchmark<<locked>>94%49,371 psi90%3143 fps96.4%
Hodgdon BL-C2<<locked>>96%46,775 psi85%3192 fps95.9%
Hodgdon H322<<locked>>92%49,763 psi90%3235 fps99%
Hodgdon H335<<locked>>90%47,703 psi87%3186 fps97.9%
Hodgdon H4198<<locked>>84%48,080 psi87%3097 fps98.4%
Hodgdon TrailBossᴾ<<locked>>100%32,401 psi59%2037 fps100%
IMR 3031<<locked>>98%47,166 psi86%3248 fps99.3%
IMR 4198<<locked>>90%48,588 psi88%3150 fps100%
Lovex D073.4<<locked>>86%48,747 psi88%3192 fps97.2%
Lovex D073.5<<locked>>92%48,849 psi89%3173 fps96.7%
Lovex D073.6<<locked>>98%47,021 psi85%3192 fps97.2%
Lovex S053<<locked>>82%49,719 psi90%3071 fps100%
Norma 200<<locked>>86%47,572 psi86%3150 fps100%
Norma 202<<locked>>98%47,601 psi86%3186 fps98%
ReloadSwiss RS 14ᴾ<<locked>>100%32,387 psi59%2083 fps100%
ReloadSwiss RS 40<<locked>>92%49,197 psi89%3192 fps97.2%
Rottweil R 901<<locked>>96%49,226 psi89%3186 fps97.9%
Shooters World AR Plus<<locked>>86%48,747 psi88%3192 fps97.2%
Shooters World Match Rifle<<locked>>98%47,021 psi85%3192 fps97.2%
SNPE Vectan BA6 1/2<<locked>>84%47,979 psi87%2877 fps100%
SNPE Vectan SP 10<<locked>>88%48,675 psi88%3202 fps98%
SNPE Vectan SP 3<<locked>>90%47,892 psi87%3169 fps99.2%
SNPE Vectan Tubal 3000<<locked>>96%47,834 psi87%3091 fps97.8%
SNPE Vectan Tubal 5000ᴾ<<locked>>100%43,729 psi79%3022 fps98%
Somchem S335<<locked>>98%49,719 psi90%3143 fps98.9%
Vihtavuori N120<<locked>>86%49,516 psi90%3110 fps100%
Vihtavuori N130<<locked>>92%48,095 psi87%3110 fps99.9%
Vihtavuori N133<<locked>>96%47,079 psi85%3097 fps99.5%
Vihtavuori N135ᴾ<<locked>>100%45,455 psi82%3153 fps99.6%
Vihtavuori N140ᴾ<<locked>>100%48,602 psi88%3169 fps98.4%
Vihtavuori N530<<locked>>96%49,603 psi90%3182 fps95.8%
Vihtavuori N540ᴾ<<locked>>100%47,050 psi85%3150 fps97.7%
Winchester 748<<locked>>96%47,761 psi87%3215 fps96.4%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 1680<<locked>>80%45,658 psi83%3028 fps99.8%
Accurate 2015<<locked>>80%29,878 psi54%2740 fps95.4%
Accurate 2460<<locked>>86%39,523 psi72%2989 fps95.6%
Accurate 2495<<locked>>86%27,760 psi50%2743 fps95%
Accurate 2520<<locked>>90%39,639 psi72%3028 fps95.2%
Accurate 4064<<locked>>96%36,303 psi66%2979 fps95.5%
Accurate LT-30<<locked>>80%38,479 psi70%2877 fps96.8%
Accurate LT-32<<locked>>82%41,597 psi75%2943 fps95.6%
ADI AR 2207<<locked>>80%40,901 psi74%3009 fps100%
ADI AR 221923.5 gr80%36,201 psi66%2946 fps95.9%
Alliant AR-Comp22 gr80%27,224 psi49%2740 fps96.9%
Alliant Reloder-10x<<locked>>80%34,447 psi63%2887 fps98.1%
Alliant Reloder-7<<locked>>80%42,090 psi76%3005 fps99.7%
Baschieri & Pellagri 106<<locked>>80%37,115 psi67%2851 fps96.8%
Hodgdon Benchmark<<locked>>92%46,224 psi84%3084 fps95.6%
Hodgdon BL-C2<<locked>>94%43,613 psi79%3130 fps95%
Hodgdon H322<<locked>>82%35,360 psi64%2923 fps95.5%
Hodgdon H33525.6 gr84%38,769 psi70%2999 fps95.6%
Hodgdon H4198<<locked>>80%42,366 psi77%2986 fps97.2%
Hodgdon TrailBoss<<locked>>80%23,917 psi43%1831 fps100%
IMR 3031<<locked>>86%31,894 psi58%2887 fps95.1%
IMR 4198<<locked>>80%35,795 psi65%2884 fps99.1%
Lovex D073.4<<locked>>82%42,264 psi77%3061 fps95.6%
Lovex D073.5<<locked>>88%42,467 psi77%3048 fps95%
Lovex D073.6<<locked>>94%40,669 psi74%3061 fps95.5%
Lovex S053<<locked>>80%46,934 psi85%3025 fps100%
Norma 200<<locked>>80%39,088 psi71%2979 fps99.5%
Norma 202<<locked>>90%36,883 psi67%2956 fps95%
ReloadSwiss RS 14<<locked>>80%23,627 psi43%1867 fps100%
ReloadSwiss RS 40<<locked>>88%42,975 psi78%3068 fps95.6%
Rottweil R 901<<locked>>88%38,406 psi70%2959 fps95.2%
Shooters World AR Plus<<locked>>82%42,264 psi77%3061 fps95.6%
Shooters World Match Rifle<<locked>>94%40,669 psi74%3061 fps95.5%
SNPE Vectan BA6 1/2<<locked>>80%43,265 psi79%2802 fps100%
SNPE Vectan SP 10<<locked>>82%39,291 psi71%3009 fps95.6%
SNPE Vectan SP 3<<locked>>80%34,664 psi63%2884 fps96.3%
SNPE Vectan Tubal 3000<<locked>>88%37,347 psi68%2874 fps95%
SNPE Vectan Tubal 5000<<locked>>92%34,171 psi62%2808 fps95.2%
Somchem S335<<locked>>86%34,360 psi62%2822 fps95.1%
Vihtavuori N120<<locked>>80%41,017 psi74%2963 fps100%
Vihtavuori N130<<locked>>80%32,866 psi60%2785 fps97.5%
Vihtavuori N133<<locked>>82%30,589 psi56%2730 fps95.5%
Vihtavuori N135<<locked>>86%29,095 psi53%2769 fps95.3%
Vihtavuori N140<<locked>>92%37,246 psi68%2936 fps95.6%
Vihtavuori N530<<locked>>94%46,760 psi85%3130 fps95.1%
Vihtavuori N540<<locked>>94%38,276 psi69%2969 fps95.3%
Winchester 748<<locked>>94%44,585 psi81%3156 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 47 powders for 5.6 x 50 Mag. loaded with the .224 | 55gr | Sierra SP Blitz. Alliant AR-Comp delivers the highest muzzle velocity at 3,268 fps; across all powders the maximum-charge window runs from 2,037 fps to 3,268 fps. Accurate 2495 gives the best case fill at 100 %, and 47 of the 47 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (380 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.224" calls for a 1:12.0 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. ADI AR 2219, Alliant AR-Comp, Hodgdon H335 rank at the top here: for 5.6 x 50 Mag. with the .224 | 55gr | Sierra SP Blitz 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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