Load Specifications
Load data in caliber .405 Win. with .416 | 350gr | Speer Hot-Cor bullet and 41 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are SNPE Vectan SP 10, Alliant AR-Comp and Hodgdon H322.
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>> | 96% | 40,973 psi | 89% | 2005 fps | 99.6% |
| Accurate 2460 | <<locked>> | 92% | 39,305 psi | 85% | 2001 fps | 97.1% |
| Accurate 2495ᴾ | <<locked>> | 100% | 34,301 psi | 75% | 1982 fps | 99% |
| Accurate 2520 | <<locked>> | 98% | 39,552 psi | 86% | 2054 fps | 96.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 32,068 psi | 70% | 1952 fps | 96.1% |
| Accurate LT-30 | <<locked>> | 86% | 40,509 psi | 88% | 1916 fps | 98.5% |
| Accurate LT-32 | <<locked>> | 86% | 40,988 psi | 89% | 1919 fps | 96.8% |
| ADI AR 2207 | <<locked>> | 84% | 39,769 psi | 86% | 1959 fps | 100% |
| ADI AR 2219 | <<locked>> | 88% | 39,813 psi | 87% | 2014 fps | 98.3% |
| Alliant AR-Comp | <<locked>> | 98% | 40,219 psi | 87% | 2060 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 90% | 39,697 psi | 86% | 1995 fps | 99.9% |
| Alliant Reloder-7 | <<locked>> | 84% | 41,176 psi | 90% | 1959 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 40,930 psi | 89% | 1952 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 94% | 41,582 psi | 90% | 1982 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 94% | 40,263 psi | 88% | 2024 fps | 98.4% |
| Hodgdon H335 | <<locked>> | 90% | 41,568 psi | 90% | 2051 fps | 97.7% |
| Hodgdon H4198 | <<locked>> | 84% | 39,494 psi | 86% | 1909 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,604 psi | 69% | 1224 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 36,796 psi | 80% | 2021 fps | 98.4% |
| IMR 4198 | <<locked>> | 88% | 39,740 psi | 86% | 1949 fps | 100% |
| Lovex D073.4 | <<locked>> | 86% | 40,176 psi | 87% | 2011 fps | 96.6% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 39,015 psi | 85% | 2044 fps | 96.5% |
| Norma 200 | <<locked>> | 86% | 39,798 psi | 87% | 1982 fps | 100% |
| Norma 202ᴾ | <<locked>> | 100% | 41,379 psi | 90% | 2051 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,604 psi | 69% | 1253 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 92% | 40,843 psi | 89% | 2014 fps | 96.5% |
| Rottweil R 901 | <<locked>> | 96% | 40,698 psi | 88% | 2005 fps | 97.4% |
| Shooters World AR Plus | <<locked>> | 86% | 40,176 psi | 87% | 2011 fps | 96.6% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 39,015 psi | 85% | 2044 fps | 96.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 40,901 psi | 89% | 1768 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 88% | 40,030 psi | 87% | 2021 fps | 97.3% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 40,698 psi | 88% | 1998 fps | 99.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 96% | 40,422 psi | 88% | 1949 fps | 97.3% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 36,506 psi | 79% | 1906 fps | 97.3% |
| Somchem S335 | <<locked>> | 98% | 40,973 psi | 89% | 1985 fps | 98.3% |
| Vihtavuori N120 | <<locked>> | 84% | 39,972 psi | 87% | 1926 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 40,538 psi | 88% | 1959 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 96% | 39,552 psi | 86% | 1959 fps | 99.3% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 36,666 psi | 80% | 1991 fps | 99.2% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 39,508 psi | 86% | 2001 fps | 97.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 37,898 psi | 82% | 1991 fps | 96.6% |
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% | 25,135 psi | 55% | 1722 fps | 95.6% |
| Accurate 2460 | <<locked>> | 86% | 32,343 psi | 70% | 1886 fps | 95% |
| Accurate 2495 | <<locked>> | 88% | 23,076 psi | 50% | 1759 fps | 95.4% |
| Accurate 2520 | <<locked>> | 94% | 34,519 psi | 75% | 1972 fps | 95.2% |
| Accurate 4064 | <<locked>> | 98% | 30,124 psi | 65% | 1916 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 33,823 psi | 74% | 1808 fps | 96.9% |
| Accurate LT-32 | <<locked>> | 82% | 36,448 psi | 79% | 1847 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 35,070 psi | 76% | 1890 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 30,821 psi | 67% | 1857 fps | 95.7% |
| Alliant AR-Comp | 38.7 gr | 80% | 23,351 psi | 51% | 1729 fps | 97.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 29,153 psi | 63% | 1814 fps | 98.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 36,550 psi | 79% | 1890 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 31,633 psi | 69% | 1801 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 92% | 39,204 psi | 85% | 1946 fps | 95% |
| Hodgdon H322 | 40.8 gr | 84% | 29,878 psi | 65% | 1837 fps | 95.3% |
| Hodgdon H335 | <<locked>> | 84% | 34,055 psi | 74% | 1926 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 35,273 psi | 77% | 1841 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,424 psi | 51% | 1093 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 27,659 psi | 60% | 1837 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 31,618 psi | 69% | 1814 fps | 99.3% |
| Lovex D073.4 | <<locked>> | 82% | 34,853 psi | 76% | 1926 fps | 95% |
| Lovex D073.6 | <<locked>> | 96% | 34,330 psi | 75% | 1969 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 32,895 psi | 72% | 1870 fps | 99.5% |
| Norma 202 | <<locked>> | 92% | 32,445 psi | 71% | 1903 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,119 psi | 50% | 1115 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 88% | 36,114 psi | 79% | 1939 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 90% | 34,301 psi | 75% | 1900 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 82% | 34,853 psi | 76% | 1926 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 96% | 34,330 psi | 75% | 1969 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 38,856 psi | 84% | 1745 fps | 100% |
| SNPE Vectan SP 10 | 43.8 gr | 82% | 32,924 psi | 72% | 1900 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 29,921 psi | 65% | 1811 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 33,765 psi | 73% | 1847 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 30,458 psi | 66% | 1801 fps | 95.4% |
| Somchem S335 | <<locked>> | 88% | 30,458 psi | 66% | 1811 fps | 95.5% |
| Vihtavuori N120 | <<locked>> | 80% | 35,288 psi | 77% | 1860 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 28,282 psi | 61% | 1752 fps | 97.7% |
| Vihtavuori N133 | <<locked>> | 82% | 26,310 psi | 57% | 1716 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 86% | 24,279 psi | 53% | 1742 fps | 95.1% |
| Vihtavuori N140 | <<locked>> | 94% | 32,924 psi | 72% | 1890 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 96% | 33,417 psi | 73% | 1916 fps | 95.2% |
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 72 powders for .405 Win. loaded with the .416 | 350gr | Speer Hot-Cor. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,070 fps; across all powders the maximum-charge window runs from 1,224 fps to 2,070 fps. Accurate 2495 gives the best case fill at 100 %, and 72 of the 72 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (317 MPa), the top charges use 69–90 %, leaving at least 10 % headroom. Accurate 2495, Accurate 4064, Alliant Reloder- TS 15.5 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. SNPE Vectan SP 10, Alliant AR-Comp, Hodgdon H322 rank at the top here: for .405 Win. with the .416 | 350gr | Speer Hot-Cor they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2200, Accurate 2230, ADI AR 2206H burn incompletely and react more sensitively to barrel length and temperature. Hodgdon TrailBoss, ReloadSwiss RS 14 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.