Load Specifications
Load data in caliber 5.56 x 45 NATO with .224 | 55gr | Speer TMJ bullet and 37 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Norma 200 and Alliant Reloder-7.
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: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 88% | 52,504 psi | 84% | 2986 fps | 99.5% |
| Accurate 2015ᴾ | <<locked>> | 100% | 48,776 psi | 78% | 2999 fps | 98.5% |
| Accurate 2460ᴾ | <<locked>> | 100% | 54,766 psi | 88% | 3100 fps | 96.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 36,695 psi | 59% | 2825 fps | 96% |
| Accurate LT-30 | <<locked>> | 94% | 53,040 psi | 85% | 2989 fps | 98% |
| Accurate LT-32 | <<locked>> | 94% | 53,534 psi | 86% | 2995 fps | 96.1% |
| ADI AR 2205 | <<locked>> | 82% | 54,433 psi | 87% | 2917 fps | 100% |
| ADI AR 2207 | <<locked>> | 94% | 55,085 psi | 88% | 3097 fps | 100% |
| ADI AR 2219 | <<locked>> | 96% | 54,795 psi | 88% | 3143 fps | 98.1% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 45,252 psi | 73% | 3028 fps | 99.7% |
| Alliant Reloder-10xᴾ | <<locked>> | 100% | 56,173 psi | 90% | 3150 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 92% | 54,099 psi | 87% | 3058 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 96% | 55,172 psi | 88% | 3022 fps | 98.6% |
| Hodgdon H322ᴾ | <<locked>> | 100% | 50,502 psi | 81% | 3071 fps | 97.3% |
| Hodgdon H335 | <<locked>> | 96% | 54,288 psi | 87% | 3127 fps | 97.1% |
| Hodgdon H4198 | <<locked>> | 94% | 54,288 psi | 87% | 3031 fps | 97.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,386 psi | 50% | 1906 fps | 100% |
| IMR 4198 | <<locked>> | 98% | 53,751 psi | 86% | 3074 fps | 100% |
| IMR 4227 | <<locked>> | 88% | 54,940 psi | 88% | 3031 fps | 100% |
| Lovex D060 | <<locked>> | 82% | 54,230 psi | 87% | 3064 fps | 99.9% |
| Lovex D063 | <<locked>> | 82% | 56,420 psi | 90% | 3041 fps | 100% |
| Lovex S053 | <<locked>> | 88% | 53,229 psi | 85% | 2979 fps | 100% |
| Norma 200 | <<locked>> | 94% | 53,171 psi | 85% | 3084 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,357 psi | 50% | 1952 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 88% | 55,042 psi | 88% | 3064 fps | 100% |
| ReloadSwiss RS 40ᴾ | <<locked>> | 100% | 55,912 psi | 90% | 3127 fps | 96.2% |
| Shooters World Buffalo Rifle | <<locked>> | 82% | 54,230 psi | 87% | 3064 fps | 99.9% |
| Shooters World SOCOM | <<locked>> | 82% | 56,420 psi | 90% | 3041 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 54,186 psi | 87% | 2835 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 96% | 54,955 psi | 88% | 3133 fps | 97.1% |
| SNPE Vectan SP 3 | <<locked>> | 98% | 53,447 psi | 86% | 3097 fps | 98.6% |
| Somchem S335ᴾ | <<locked>> | 100% | 45,672 psi | 73% | 2904 fps | 96.1% |
| Vihtavuori N110 | <<locked>> | 84% | 55,608 psi | 89% | 2936 fps | 100% |
| Vihtavuori N120 | <<locked>> | 94% | 55,143 psi | 88% | 3048 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 3038 fps | 99.6% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 46,427 psi | 74% | 2923 fps | 98% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 38,421 psi | 62% | 2848 fps | 96.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 20"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 40,118 psi | 64% | 2759 fps | 97.6% |
| Accurate 2015 | <<locked>> | 90% | 35,375 psi | 57% | 2730 fps | 95% |
| Accurate 2460 | <<locked>> | 96% | 47,863 psi | 77% | 2989 fps | 95.3% |
| Accurate 2495 | <<locked>> | 98% | 34,098 psi | 55% | 2762 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 86% | 41,626 psi | 67% | 2782 fps | 95.4% |
| Accurate LT-32 | <<locked>> | 92% | 50,227 psi | 81% | 2940 fps | 95.4% |
| ADI AR 2205 | <<locked>> | 80% | 51,024 psi | 82% | 2867 fps | 100% |
| ADI AR 2207 | <<locked>> | 80% | 35,853 psi | 57% | 2749 fps | 99.4% |
| ADI AR 2219 | 23.2 gr | 90% | 44,309 psi | 71% | 2956 fps | 95.8% |
| Alliant AR-Comp | <<locked>> | 88% | 30,792 psi | 49% | 2684 fps | 95.9% |
| Alliant Reloder-10x | <<locked>> | 84% | 33,881 psi | 54% | 2717 fps | 95.8% |
| Alliant Reloder-7 | 19.3 gr | 80% | 37,130 psi | 60% | 2736 fps | 97.4% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 39,769 psi | 64% | 2749 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 94% | 42,032 psi | 67% | 2907 fps | 95.1% |
| Hodgdon H335 | <<locked>> | 92% | 47,036 psi | 75% | 2999 fps | 95.4% |
| Hodgdon H4198 | <<locked>> | 86% | 43,033 psi | 69% | 2825 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 22,931 psi | 37% | 1703 fps | 100% |
| IMR 4198 | <<locked>> | 80% | 31,836 psi | 51% | 2621 fps | 96% |
| IMR 4227 | <<locked>> | 80% | 43,178 psi | 69% | 2831 fps | 99.7% |
| Lovex D060 | <<locked>> | 80% | 51,488 psi | 83% | 3018 fps | 99.8% |
| Lovex D063 | <<locked>> | 80% | 52,199 psi | 84% | 2979 fps | 100% |
| Lovex S053 | <<locked>> | 80% | 42,090 psi | 67% | 2795 fps | 100% |
| Norma 200 | 19.5 gr | 80% | 33,562 psi | 54% | 2694 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,061 psi | 37% | 1749 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 42,496 psi | 68% | 2851 fps | 99.6% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 52,417 psi | 84% | 3071 fps | 95.5% |
| Shooters World Buffalo Rifle | <<locked>> | 80% | 51,488 psi | 83% | 3018 fps | 99.8% |
| Shooters World SOCOM | <<locked>> | 80% | 52,199 psi | 84% | 2979 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,160 psi | 63% | 2605 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 47,703 psi | 76% | 3009 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 39,291 psi | 63% | 2828 fps | 95.4% |
| Somchem S335 | <<locked>> | 98% | 42,844 psi | 69% | 2851 fps | 95.3% |
| Vihtavuori N110 | <<locked>> | 80% | 49,168 psi | 79% | 2844 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 35,969 psi | 58% | 2720 fps | 99.9% |
| Vihtavuori N130 | <<locked>> | 84% | 32,576 psi | 52% | 2621 fps | 95% |
| Vihtavuori N133 | <<locked>> | 92% | 36,216 psi | 58% | 2713 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 98% | 35,911 psi | 58% | 2789 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 37 powders for 5.56 x 45 NATO loaded with the .224 | 55gr | Speer TMJ. Alliant Reloder-10x delivers the highest muzzle velocity at 3,150 fps; across all powders the maximum-charge window runs from 1,906 fps to 3,150 fps. Accurate 2015 gives the best case fill at 100 %, and 37 of the 37 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 55.0 gr projectile in 0.224" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2460, Accurate 2495 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, Norma 200, Alliant Reloder-7 rank at the top here: for 5.56 x 45 NATO with the .224 | 55gr | Speer TMJ 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.