Load Specifications
Load data in caliber 5.6 x 50 Mag. with .223 | 55gr | SUS-TAC Penmax (HPT) bullet and 45 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, Accurate 2520 and Alliant Reloder-10x.
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 1680 | <<locked>> | 82% | 46,804 psi | 85% | 3035 fps | 99.8% |
| Accurate 2015 | <<locked>> | 96% | 47,442 psi | 86% | 3127 fps | 99.5% |
| Accurate 2460 | <<locked>> | 94% | 49,647 psi | 90% | 3176 fps | 97.7% |
| Accurate 2495ᴾ | <<locked>> | 100% | 42,380 psi | 77% | 3091 fps | 99.1% |
| Accurate 2520 | <<locked>> | 96% | 46,630 psi | 85% | 3159 fps | 96.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 39,320 psi | 71% | 3041 fps | 96.2% |
| Accurate LT-30 | <<locked>> | 88% | 47,863 psi | 87% | 3051 fps | 98.6% |
| Accurate LT-32 | <<locked>> | 88% | 48,254 psi | 88% | 3058 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 86% | 47,427 psi | 86% | 3117 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 48,733 psi | 88% | 3199 fps | 98.6% |
| Alliant AR-Comp | <<locked>> | 98% | 47,311 psi | 86% | 3219 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 48,385 psi | 88% | 3173 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 86% | 49,240 psi | 89% | 3123 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 49,530 psi | 90% | 3084 fps | 99.1% |
| Hodgdon H322 | <<locked>> | 92% | 47,543 psi | 86% | 3179 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 92% | 48,588 psi | 88% | 3189 fps | 97.8% |
| Hodgdon H4198 | <<locked>> | 86% | 49,792 psi | 90% | 3110 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,966 psi | 58% | 2011 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 47,979 psi | 87% | 3248 fps | 99.2% |
| IMR 4198 | <<locked>> | 92% | 49,559 psi | 90% | 3153 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 49,197 psi | 89% | 3081 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 46,572 psi | 85% | 3133 fps | 96.4% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 47,442 psi | 86% | 3186 fps | 96.9% |
| Lovex S053 | <<locked>> | 82% | 48,138 psi | 87% | 3031 fps | 100% |
| Norma 200 | <<locked>> | 88% | 48,486 psi | 88% | 3150 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 48,515 psi | 88% | 3186 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,952 psi | 58% | 2060 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 49,240 psi | 89% | 3114 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 47,297 psi | 86% | 3140 fps | 96.4% |
| Rottweil R 901 | <<locked>> | 96% | 47,123 psi | 86% | 3127 fps | 97.2% |
| Shooters World AR Plus | <<locked>> | 86% | 46,572 psi | 85% | 3133 fps | 96.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 47,442 psi | 86% | 3186 fps | 96.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 49,168 psi | 89% | 2884 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 49,530 psi | 90% | 3202 fps | 97.9% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 48,979 psi | 89% | 3173 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 49,284 psi | 89% | 3100 fps | 97.7% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,959 psi | 76% | 2972 fps | 97.3% |
| Somchem S335 | <<locked>> | 98% | 47,326 psi | 86% | 3087 fps | 98.3% |
| Vihtavuori N120 | <<locked>> | 86% | 47,442 psi | 86% | 3064 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 48,733 psi | 88% | 3107 fps | 99.9% |
| Vihtavuori N133 | <<locked>> | 98% | 48,443 psi | 88% | 3107 fps | 99.5% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 43,279 psi | 79% | 3100 fps | 99.1% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 46,238 psi | 84% | 3110 fps | 97.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 44,875 psi | 81% | 3094 fps | 96.9% |
| Winchester 748 | <<locked>> | 98% | 48,921 psi | 89% | 3222 fps | 96.3% |
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 1680 | <<locked>> | 80% | 44,135 psi | 80% | 2986 fps | 99.6% |
| Accurate 2015 | <<locked>> | 82% | 30,530 psi | 55% | 2746 fps | 95.4% |
| Accurate 2460 | <<locked>> | 88% | 40,408 psi | 73% | 2995 fps | 95.5% |
| Accurate 2495 | <<locked>> | 90% | 29,849 psi | 54% | 2799 fps | 95.7% |
| Accurate 2520 | 26.6 gr | 92% | 40,669 psi | 74% | 3038 fps | 95.1% |
| Accurate 4064 | <<locked>> | 98% | 36,506 psi | 66% | 2976 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 37,362 psi | 68% | 2835 fps | 96.2% |
| Accurate LT-32 | <<locked>> | 84% | 42,409 psi | 77% | 2943 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 39,378 psi | 71% | 2966 fps | 100% |
| ADI AR 2219 | <<locked>> | 82% | 37,333 psi | 68% | 2959 fps | 95.9% |
| Alliant AR-Comp | <<locked>> | 80% | 26,223 psi | 48% | 2690 fps | 96% |
| Alliant Reloder-10x | 20.7 gr | 80% | 33,083 psi | 60% | 2841 fps | 97.5% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,741 psi | 74% | 2963 fps | 99.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,897 psi | 65% | 2808 fps | 96.1% |
| Hodgdon H322 | 23 gr | 84% | 36,419 psi | 66% | 2936 fps | 95.6% |
| Hodgdon H335 | <<locked>> | 86% | 39,755 psi | 72% | 3009 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 41,133 psi | 75% | 2940 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,670 psi | 43% | 1808 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 34,490 psi | 63% | 2946 fps | 95.9% |
| IMR 4198 | <<locked>> | 80% | 34,418 psi | 62% | 2838 fps | 98.6% |
| IMR 4227 | <<locked>> | 80% | 46,267 psi | 84% | 3028 fps | 100% |
| Lovex D073.4 | <<locked>> | 84% | 43,221 psi | 78% | 3068 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 96% | 41,307 psi | 75% | 3064 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 45,281 psi | 82% | 2982 fps | 100% |
| Norma 200 | <<locked>> | 80% | 37,188 psi | 67% | 2927 fps | 99.1% |
| Norma 202 | <<locked>> | 92% | 37,666 psi | 68% | 2963 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,380 psi | 42% | 1844 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,412 psi | 84% | 3064 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 44,077 psi | 80% | 3077 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 90% | 39,059 psi | 71% | 2959 fps | 95% |
| Shooters World AR Plus | <<locked>> | 84% | 43,221 psi | 78% | 3068 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 96% | 41,307 psi | 75% | 3064 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,076 psi | 76% | 2772 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 84% | 40,625 psi | 74% | 3022 fps | 95.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,373 psi | 61% | 2835 fps | 95.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 92% | 40,596 psi | 74% | 2933 fps | 95.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 34,635 psi | 63% | 2808 fps | 95% |
| Somchem S335 | <<locked>> | 88% | 35,012 psi | 64% | 2825 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 39,494 psi | 72% | 2923 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,647 psi | 57% | 2740 fps | 96.8% |
| Vihtavuori N133 | <<locked>> | 84% | 31,024 psi | 56% | 2726 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 88% | 29,443 psi | 53% | 2766 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 94% | 38,203 psi | 69% | 2943 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 96% | 39,421 psi | 72% | 2982 fps | 95.3% |
| Winchester 748 | <<locked>> | 96% | 45,571 psi | 83% | 3156 fps | 95.4% |
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 45 powders for 5.6 x 50 Mag. loaded with the .223 | 55gr | SUS-TAC Penmax (HPT). IMR 3031 delivers the highest muzzle velocity at 3,248 fps; across all powders the maximum-charge window runs from 2,011 fps to 3,248 fps. Accurate 2495 gives the best case fill at 100 %, and 45 of the 45 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (380 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.223" calls for a 1:9.0 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. Hodgdon H322, Accurate 2520, Alliant Reloder-10x rank at the top here: for 5.6 x 50 Mag. with the .223 | 55gr | SUS-TAC Penmax (HPT) 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.