Load Specifications
Load data in caliber .404 Riml. N.E. with .423 | 230gr | Impala LWHV LS bullet and 43 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 Accurate 2520.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 92% | 45,266 psi | 86% | 2841 fps | 99.4% |
| Accurate 2460 | <<locked>> | 90% | 46,717 psi | 88% | 2884 fps | 97.4% |
| Accurate 2495ᴾ | <<locked>> | 100% | 46,441 psi | 88% | 2927 fps | 99.7% |
| Accurate 2520 | <<locked>> | 94% | 46,572 psi | 88% | 2927 fps | 97% |
| Accurate 4064ᴾ | <<locked>> | 100% | 43,076 psi | 81% | 2887 fps | 97.5% |
| Accurate LT-30 | <<locked>> | 86% | 47,282 psi | 89% | 2799 fps | 98.8% |
| Accurate LT-32 | <<locked>> | 86% | 47,659 psi | 90% | 2805 fps | 97.2% |
| ADI AR 2207 | <<locked>> | 84% | 47,616 psi | 90% | 2858 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 45,223 psi | 85% | 2890 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 96% | 46,934 psi | 89% | 2966 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 88% | 45,658 psi | 86% | 2867 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 82% | 46,427 psi | 88% | 2818 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 45,759 psi | 86% | 2785 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 92% | 46,920 psi | 89% | 2841 fps | 95.8% |
| Hodgdon BL-C2 | <<locked>> | 96% | 47,036 psi | 89% | 2953 fps | 95.9% |
| Hodgdon H322 | <<locked>> | 90% | 46,891 psi | 89% | 2923 fps | 98.6% |
| Hodgdon H335 | <<locked>> | 90% | 47,848 psi | 90% | 2936 fps | 97.9% |
| Hodgdon H4198 | <<locked>> | 82% | 46,238 psi | 87% | 2795 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,272 psi | 63% | 1818 fps | 100% |
| IMR 3031 | <<locked>> | 98% | 47,384 psi | 90% | 2995 fps | 99.3% |
| IMR 4198 | <<locked>> | 88% | 46,543 psi | 88% | 2844 fps | 100% |
| Lovex D073.4 | <<locked>> | 84% | 46,804 psi | 88% | 2894 fps | 96.8% |
| Lovex D073.5 | <<locked>> | 90% | 46,514 psi | 88% | 2881 fps | 96.1% |
| Lovex D073.6 | <<locked>> | 98% | 47,224 psi | 89% | 2949 fps | 97.1% |
| Norma 200 | <<locked>> | 84% | 46,456 psi | 88% | 2854 fps | 100% |
| Norma 202 | <<locked>> | 96% | 45,571 psi | 86% | 2897 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,388 psi | 63% | 1864 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 46,775 psi | 88% | 2890 fps | 96.6% |
| Rottweil R 901 | <<locked>> | 92% | 45,469 psi | 86% | 2848 fps | 97.2% |
| Shooters World AR Plus | <<locked>> | 84% | 46,804 psi | 88% | 2894 fps | 96.8% |
| Shooters World Match Rifle | <<locked>> | 98% | 47,224 psi | 89% | 2949 fps | 97.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 47,021 psi | 89% | 2592 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 46,035 psi | 87% | 2897 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 45,992 psi | 87% | 2871 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 46,093 psi | 87% | 2805 fps | 97.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 44,237 psi | 84% | 2789 fps | 98.1% |
| Somchem S335 | <<locked>> | 96% | 47,659 psi | 90% | 2858 fps | 98.5% |
| Vihtavuori N120 | <<locked>> | 84% | 47,659 psi | 90% | 2812 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 46,064 psi | 87% | 2815 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 96% | 47,863 psi | 90% | 2858 fps | 99.6% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 46,151 psi | 87% | 2917 fps | 99.6% |
| Vihtavuori N140 | <<locked>> | 98% | 45,818 psi | 87% | 2874 fps | 97.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 47,065 psi | 89% | 2910 fps | 97.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 32,010 psi | 60% | 2549 fps | 96.5% |
| Accurate 2460 | <<locked>> | 84% | 38,696 psi | 73% | 2723 fps | 95.4% |
| Accurate 2495 | <<locked>> | 84% | 28,689 psi | 54% | 2526 fps | 95.7% |
| Accurate 2520 | 82.2 gr | 90% | 40,756 psi | 77% | 2812 fps | 95.5% |
| Accurate 4064 | <<locked>> | 94% | 36,216 psi | 68% | 2736 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 39,784 psi | 75% | 2648 fps | 97.3% |
| Accurate LT-32 | <<locked>> | 80% | 40,103 psi | 76% | 2654 fps | 95.3% |
| ADI AR 2207 | <<locked>> | 80% | 42,409 psi | 80% | 2769 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 37,594 psi | 71% | 2726 fps | 96.5% |
| Alliant AR-Comp | 67 gr | 80% | 29,095 psi | 55% | 2552 fps | 98% |
| Alliant Reloder-10x | <<locked>> | 80% | 36,303 psi | 69% | 2674 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 43,816 psi | 83% | 2769 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 38,116 psi | 72% | 2635 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 90% | 44,396 psi | 84% | 2792 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 94% | 44,034 psi | 83% | 2894 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 34,534 psi | 65% | 2651 fps | 95.4% |
| Hodgdon H335 | <<locked>> | 82% | 37,101 psi | 70% | 2717 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 43,569 psi | 82% | 2743 fps | 97.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,845 psi | 47% | 1627 fps | 100% |
| IMR 3031 | 70.3 gr | 84% | 31,357 psi | 59% | 2621 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 37,188 psi | 70% | 2654 fps | 99.5% |
| Lovex D073.4 | <<locked>> | 80% | 40,988 psi | 77% | 2779 fps | 95.2% |
| Lovex D073.5 | <<locked>> | 88% | 43,729 psi | 83% | 2825 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 94% | 41,481 psi | 78% | 2841 fps | 95.7% |
| Norma 200 | <<locked>> | 80% | 41,307 psi | 78% | 2756 fps | 99.8% |
| Norma 202 | <<locked>> | 90% | 38,072 psi | 72% | 2740 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,816 psi | 47% | 1663 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 41,466 psi | 78% | 2785 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 86% | 38,667 psi | 73% | 2700 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 40,988 psi | 77% | 2779 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 94% | 41,481 psi | 78% | 2841 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,686 psi | 84% | 2556 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 38,043 psi | 72% | 2726 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,216 psi | 68% | 2664 fps | 97% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 38,783 psi | 73% | 2657 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 35,273 psi | 67% | 2598 fps | 95.7% |
| Somchem S335 | <<locked>> | 84% | 33,910 psi | 64% | 2566 fps | 95% |
| Vihtavuori N120 | <<locked>> | 80% | 42,496 psi | 80% | 2723 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,664 psi | 65% | 2575 fps | 98.1% |
| Vihtavuori N133 | <<locked>> | 80% | 30,313 psi | 57% | 2477 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 84% | 28,964 psi | 55% | 2523 fps | 95.4% |
| Vihtavuori N140 | <<locked>> | 90% | 36,143 psi | 68% | 2667 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 94% | 39,334 psi | 74% | 2756 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 43 powders for .404 Riml. N.E. loaded with the .423 | 230gr | Impala LWHV LS. IMR 3031 delivers the highest muzzle velocity at 2,995 fps; across all powders the maximum-charge window runs from 1,818 fps to 2,995 fps. Accurate 2495 gives the best case fill at 100 %, and 43 of the 43 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 63–90 %, leaving at least 10 % headroom. 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, Accurate 2520 rank at the top here: for .404 Riml. N.E. with the .423 | 230gr | Impala LWHV LS 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.