Load Specifications
Load data in caliber 5.6 x 50 R Mag. with .223 | 55gr | SUS-TAC HP bullet and 33 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant AR-Comp, Norma 202 and SNPE Vectan SP 3.
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"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 42,395 psi | 86% | 3031 fps | 98.8% |
| Accurate 2460 | <<locked>> | 90% | 43,801 psi | 89% | 3071 fps | 96.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 42,743 psi | 87% | 3100 fps | 99.2% |
| Accurate 4064ᴾ | <<locked>> | 100% | 39,682 psi | 80% | 3054 fps | 96.4% |
| Accurate LT-30 | <<locked>> | 84% | 42,424 psi | 86% | 2949 fps | 97.6% |
| ADI AR 2207 | <<locked>> | 82% | 42,380 psi | 86% | 3028 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 43,004 psi | 87% | 3091 fps | 97.6% |
| Alliant AR-Comp | <<locked>> | 96% | 44,295 psi | 90% | 3166 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 42,757 psi | 87% | 3068 fps | 99.5% |
| Alliant Reloder-7 | <<locked>> | 82% | 43,656 psi | 89% | 3025 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 44,150 psi | 90% | 2989 fps | 98.3% |
| Hodgdon H322 | <<locked>> | 92% | 44,092 psi | 89% | 3114 fps | 97.8% |
| Hodgdon H335 | <<locked>> | 86% | 42,438 psi | 86% | 3071 fps | 96.5% |
| Hodgdon H4198 | <<locked>> | 84% | 44,063 psi | 89% | 3005 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,140 psi | 65% | 2018 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 43,250 psi | 88% | 3159 fps | 98.5% |
| IMR 4198 | <<locked>> | 88% | 44,396 psi | 90% | 3061 fps | 99.9% |
| Norma 200 | <<locked>> | 84% | 42,931 psi | 87% | 3051 fps | 99.8% |
| Norma 202 | <<locked>> | 96% | 43,366 psi | 88% | 3091 fps | 96.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,097 psi | 65% | 2067 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 44,367 psi | 90% | 3087 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 92% | 41,800 psi | 85% | 3025 fps | 96% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 43,859 psi | 89% | 3097 fps | 96.7% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 43,714 psi | 89% | 3077 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 43,468 psi | 88% | 2995 fps | 96.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 42,206 psi | 86% | 2982 fps | 97.4% |
| Somchem S335 | <<locked>> | 94% | 42,467 psi | 86% | 2999 fps | 97.3% |
| Vihtavuori N120 | <<locked>> | 84% | 42,090 psi | 85% | 2972 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 42,496 psi | 86% | 2999 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 96% | 42,409 psi | 86% | 3002 fps | 98.7% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 43,656 psi | 89% | 3110 fps | 99.2% |
| Vihtavuori N140 | <<locked>> | 98% | 42,757 psi | 87% | 3051 fps | 97% |
| Vihtavuori N540 | <<locked>> | 98% | 43,062 psi | 87% | 3077 fps | 96.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 30,864 psi | 63% | 2759 fps | 95.6% |
| Accurate 2460 | <<locked>> | 88% | 40,727 psi | 83% | 3005 fps | 95.7% |
| Accurate 2495 | <<locked>> | 88% | 28,355 psi | 57% | 2756 fps | 95.1% |
| Accurate 4064 | <<locked>> | 98% | 37,318 psi | 76% | 2999 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 37,695 psi | 76% | 2844 fps | 96.3% |
| ADI AR 2207 | <<locked>> | 80% | 39,349 psi | 80% | 2969 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 35,041 psi | 71% | 2904 fps | 95.1% |
| Alliant AR-Comp | 21.4 gr | 80% | 26,513 psi | 54% | 2707 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,054 psi | 67% | 2844 fps | 97.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 41,133 psi | 83% | 2972 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 36,158 psi | 73% | 2818 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 86% | 36,303 psi | 74% | 2936 fps | 95.6% |
| Hodgdon H335 | <<locked>> | 84% | 39,552 psi | 80% | 3005 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 38,711 psi | 79% | 2887 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,453 psi | 48% | 1804 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 33,576 psi | 68% | 2923 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 34,853 psi | 71% | 2851 fps | 98.8% |
| Norma 200 | <<locked>> | 80% | 37,623 psi | 76% | 2936 fps | 99.2% |
| Norma 202 | 25 gr | 92% | 37,985 psi | 77% | 2972 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,583 psi | 48% | 1854 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 41,829 psi | 85% | 3031 fps | 95% |
| Rottweil R 901 | <<locked>> | 90% | 39,450 psi | 80% | 2972 fps | 95.2% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 38,159 psi | 77% | 2969 fps | 95% |
| SNPE Vectan SP 3 | 20.9 gr | 80% | 33,750 psi | 68% | 2848 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 38,479 psi | 78% | 2890 fps | 95.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 34,882 psi | 71% | 2815 fps | 95.2% |
| Somchem S335 | <<locked>> | 88% | 35,302 psi | 72% | 2835 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 37,202 psi | 75% | 2877 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,125 psi | 63% | 2730 fps | 96.6% |
| Vihtavuori N133 | <<locked>> | 86% | 31,038 psi | 63% | 2736 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 88% | 29,762 psi | 60% | 2779 fps | 95.3% |
| Vihtavuori N140 | <<locked>> | 94% | 37,521 psi | 76% | 2936 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 96% | 40,147 psi | 81% | 3015 fps | 95.7% |
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.
This overview compares 33 powders for 5.6 x 50 R Mag. loaded with the .223 | 55gr | SUS-TAC HP. Alliant AR-Comp delivers the highest muzzle velocity at 3,166 fps; across all powders the maximum-charge window runs from 2,018 fps to 3,166 fps. Accurate 2495 gives the best case fill at 100 %, and 33 of the 33 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 0.223" calls for a 1:10.0 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. Alliant AR-Comp, Norma 202, SNPE Vectan SP 3 rank at the top here: for 5.6 x 50 R Mag. with the .223 | 55gr | SUS-TAC HP 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.