Load Specifications
Load data in caliber .405 Win. with .411 | 300gr | Hornady InterLock SP bullet and 32 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H322, Alliant Reloder-10x and Alliant AR-Comp.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 82% | 40,814 psi | 89% | 2139 fps | 99.5% |
| Accurate 2015 | <<locked>> | 96% | 39,682 psi | 86% | 2201 fps | 98.8% |
| Accurate 2460 | <<locked>> | 94% | 40,625 psi | 88% | 2234 fps | 96.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 32,895 psi | 72% | 2165 fps | 97.9% |
| Accurate LT-30 | <<locked>> | 86% | 39,581 psi | 86% | 2110 fps | 97.4% |
| ADI AR 2207 | <<locked>> | 86% | 40,799 psi | 89% | 2195 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 41,278 psi | 90% | 2254 fps | 97.7% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 41,452 psi | 90% | 2303 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 92% | 40,770 psi | 89% | 2231 fps | 99.6% |
| Alliant Reloder-7 | <<locked>> | 84% | 40,089 psi | 87% | 2159 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 88% | 39,798 psi | 87% | 2142 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 92% | 39,900 psi | 87% | 2231 fps | 97.4% |
| Hodgdon H335 | <<locked>> | 92% | 40,509 psi | 88% | 2247 fps | 96.4% |
| Hodgdon H4198 | <<locked>> | 84% | 41,075 psi | 89% | 2142 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 31,357 psi | 68% | 1368 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 39,334 psi | 86% | 2277 fps | 98.1% |
| IMR 4198 | <<locked>> | 90% | 40,814 psi | 89% | 2182 fps | 99.9% |
| Norma 200 | <<locked>> | 88% | 40,915 psi | 89% | 2218 fps | 99.9% |
| Norma 202ᴾ | <<locked>> | 100% | 39,958 psi | 87% | 2244 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,198 psi | 68% | 1401 fps | 100% |
| Rottweil R 901 | <<locked>> | 96% | 39,334 psi | 86% | 2195 fps | 96% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 39,958 psi | 87% | 1965 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 41,437 psi | 90% | 2257 fps | 96.6% |
| SNPE Vectan SP 3 | <<locked>> | 90% | 39,189 psi | 85% | 2188 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 41,524 psi | 90% | 2175 fps | 96.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 35,447 psi | 77% | 2087 fps | 95.9% |
| Somchem S335 | <<locked>> | 98% | 39,798 psi | 87% | 2178 fps | 97.2% |
| Vihtavuori N120 | <<locked>> | 86% | 40,944 psi | 89% | 2159 fps | 100% |
| Vihtavuori N130 | <<locked>> | 92% | 39,363 psi | 86% | 2156 fps | 99.3% |
| Vihtavuori N133 | <<locked>> | 98% | 40,625 psi | 88% | 2185 fps | 98.8% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 35,491 psi | 77% | 2178 fps | 98.2% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 38,218 psi | 83% | 2188 fps | 96.2% |
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 1680 | <<locked>> | 80% | 38,174 psi | 83% | 2096 fps | 99.2% |
| Accurate 2015 | <<locked>> | 84% | 27,398 psi | 60% | 1965 fps | 95.3% |
| Accurate 2460 | <<locked>> | 92% | 37,942 psi | 82% | 2188 fps | 95.6% |
| Accurate 2495 | <<locked>> | 92% | 25,266 psi | 55% | 1998 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 33,054 psi | 72% | 1988 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 33,924 psi | 74% | 2080 fps | 100% |
| ADI AR 2219 | <<locked>> | 84% | 33,953 psi | 74% | 2119 fps | 95.6% |
| Alliant AR-Comp | 43 gr | 80% | 22,597 psi | 49% | 1883 fps | 95.1% |
| Alliant Reloder-10x | 42 gr | 80% | 28,253 psi | 61% | 1991 fps | 97% |
| Alliant Reloder-7 | <<locked>> | 80% | 35,375 psi | 77% | 2077 fps | 99.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 30,879 psi | 67% | 1975 fps | 95.1% |
| Hodgdon H322 | 47.8 gr | 86% | 33,170 psi | 72% | 2103 fps | 95.3% |
| Hodgdon H335 | <<locked>> | 90% | 37,927 psi | 82% | 2201 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 36,506 psi | 79% | 2064 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,134 psi | 50% | 1220 fps | 100% |
| IMR 3031 | <<locked>> | 92% | 30,864 psi | 67% | 2106 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 30,647 psi | 67% | 1991 fps | 98.4% |
| Norma 200 | <<locked>> | 80% | 31,807 psi | 69% | 2054 fps | 98.7% |
| Norma 202 | <<locked>> | 96% | 35,317 psi | 77% | 2162 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 22,974 psi | 50% | 1250 fps | 100% |
| Rottweil R 901 | <<locked>> | 94% | 37,275 psi | 81% | 2159 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 37,898 psi | 82% | 1936 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 36,332 psi | 79% | 2169 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 30,850 psi | 67% | 2028 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 36,767 psi | 80% | 2096 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 33,301 psi | 72% | 2047 fps | 95.2% |
| Somchem S335 | <<locked>> | 92% | 33,388 psi | 73% | 2064 fps | 95.3% |
| Vihtavuori N120 | <<locked>> | 80% | 34,142 psi | 74% | 2051 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 27,485 psi | 60% | 1923 fps | 96.3% |
| Vihtavuori N133 | <<locked>> | 86% | 28,572 psi | 62% | 1955 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 92% | 27,992 psi | 61% | 2021 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 98% | 35,940 psi | 78% | 2146 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 32 powders for .405 Win. loaded with the .411 | 300gr | Hornady InterLock SP. Alliant AR-Comp delivers the highest muzzle velocity at 2,303 fps; across all powders the maximum-charge window runs from 1,368 fps to 2,303 fps. Accurate 2495 gives the best case fill at 100 %, and 32 of the 32 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (317 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. Accurate 2495, Alliant AR-Comp, 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, Alliant Reloder-10x, Alliant AR-Comp rank at the top here: for .405 Win. with the .411 | 300gr | Hornady InterLock SP 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.