Load Specifications
Load data in caliber .40 S&W with .400 | 170gr | Fiocchi FMJTC bullet and 58 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant UNIQUE, ReloadSwiss RS 20 and Winchester AutoComp .
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 ≥ 60% and propellant combustion ≥ 80%. 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: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2² | <<locked>> | 76% | 26,687 psi | 82% | 1007 fps | 96.3% |
| Accurate No. 5*² | <<locked>> | 64% | 27,688 psi | 85% | 1073 fps | 88.3% |
| Accurate Solo 1000² | <<locked>> | 76% | 27,702 psi | 85% | 971 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 84% | 27,862 psi | 85% | 1020 fps | 100% |
| ADI AP 70N² | <<locked>> | 68% | 27,108 psi | 83% | 1024 fps | 100% |
| ADI APS 350² | <<locked>> | 72% | 28,181 psi | 86% | 883 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 29,269 psi | 90% | 925 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 27,963 psi | 86% | 948 fps | 100% |
| ADI AS 50N² | <<locked>> | 76% | 29,008 psi | 89% | 1001 fps | 100% |
| Alliant BE-86 | <<locked>> | 84% | 29,312 psi | 90% | 1037 fps | 100% |
| Alliant BULLSEYE² | <<locked>> | 76% | 29,443 psi | 90% | 1083 fps | 99.5% |
| Alliant Green Dot² | <<locked>> | 76% | 26,716 psi | 82% | 974 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 27,963 psi | 86% | 1066 fps | 98.8% |
| Alliant RED DOT | <<locked>> | 80% | 28,210 psi | 86% | 971 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 68% | 27,282 psi | 84% | 1053 fps | 98.6% |
| Alliant UNIQUE | <<locked>> | 84% | 27,151 psi | 83% | 1060 fps | 98.6% |
| Baschieri & Pellagri 100 | <<locked>> | 80% | 28,529 psi | 87% | 988 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 27,456 psi | 84% | 997 fps | 100% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 76% | 28,601 psi | 88% | 1017 fps | 100% |
| Hodgdon CFE Pistol | <<locked>> | 80% | 28,311 psi | 87% | 1037 fps | 100% |
| Hodgdon Clays | <<locked>> | 84% | 28,964 psi | 89% | 922 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 72% | 29,109 psi | 89% | 1086 fps | 91.6% |
| Hodgdon Longshot*² | <<locked>> | 68% | 28,543 psi | 87% | 1079 fps | 93.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 13,140 psi | 40% | 728 fps | 100% |
| Hodgdon Universal² | <<locked>> | 76% | 27,108 psi | 83% | 1024 fps | 100% |
| Lovex D036*² | <<locked>> | 64% | 27,630 psi | 85% | 1073 fps | 88.2% |
| Lovex S011² | <<locked>> | 68% | 27,978 psi | 86% | 997 fps | 100% |
| Lovex S020² | <<locked>> | 76% | 27,064 psi | 83% | 1033 fps | 99.6% |
| Maxam CSB 1 | <<locked>> | 88% | 28,210 psi | 86% | 1024 fps | 100% |
| Maxam CSB 2 | <<locked>> | 84% | 27,108 psi | 83% | 1030 fps | 100% |
| Maxam CSB 3 | <<locked>> | 80% | 26,890 psi | 82% | 991 fps | 100% |
| Maxam CSB 4 | <<locked>> | 80% | 29,066 psi | 89% | 1001 fps | 100% |
| Maxam CSB 5² | <<locked>> | 72% | 28,195 psi | 86% | 951 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 72% | 29,515 psi | 90% | 1086 fps | 97.8% |
| Ramshot True Blue*² | <<locked>> | 64% | 25,947 psi | 80% | 1037 fps | 92% |
| ReloadSwiss RS 12² | <<locked>> | 72% | 27,369 psi | 84% | 1017 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 11,922 psi | 37% | 715 fps | 98.9% |
| ReloadSwiss RS 20 | <<locked>> | 88% | 27,572 psi | 84% | 1079 fps | 99.8% |
| Rottweil P 801² | <<locked>> | 68% | 28,558 psi | 88% | 1001 fps | 100% |
| Rottweil P 806*ᴾ | <<locked>> | 100% | 27,746 psi | 85% | 1165 fps | 91.7% |
| Shooters World Auto Pistol*² | <<locked>> | 64% | 27,630 psi | 85% | 1073 fps | 88.2% |
| SNPE Vectan A0 | <<locked>> | 88% | 28,645 psi | 88% | 1040 fps | 98.8% |
| SNPE Vectan A1² | <<locked>> | 76% | 27,717 psi | 85% | 1004 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 80% | 29,327 psi | 90% | 1033 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 68% | 27,151 psi | 83% | 902 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 96% | 29,109 psi | 89% | 1073 fps | 92.8% |
| SNPE Vectan BA9 1/2 | <<locked>> | 80% | 28,601 psi | 88% | 1033 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 84% | 28,152 psi | 86% | 1135 fps | 87.9% |
| Somchem MP200² | <<locked>> | 76% | 26,353 psi | 81% | 1033 fps | 97.4% |
| Somchem MS200 | <<locked>> | 84% | 29,182 psi | 89% | 1060 fps | 99.5% |
| Vihtavuori 3N37* | <<locked>> | 88% | 28,543 psi | 87% | 1093 fps | 93.8% |
| Vihtavuori N320² | <<locked>> | 76% | 28,456 psi | 87% | 1004 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 22,611 psi | 69% | 879 fps | 100% |
| Vihtavuori N330 | <<locked>> | 80% | 28,964 psi | 89% | 1060 fps | 100% |
| Vihtavuori N340 | <<locked>> | 84% | 28,543 psi | 87% | 1056 fps | 99.1% |
| Vihtavuori N350* | <<locked>> | 92% | 27,224 psi | 83% | 1070 fps | 93.5% |
| Winchester 231² | <<locked>> | 68% | 29,211 psi | 90% | 1030 fps | 100% |
| Winchester AutoComp | <<locked>> | 84% | 27,238 psi | 83% | 1027 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*² | <<locked>> | 60% | 16,679 psi | 51% | 837 fps | 89.5% |
| Accurate No. 5*² | <<locked>> | 60% | 24,047 psi | 74% | 1014 fps | 85.8% |
| Accurate Solo 1000² | <<locked>> | 60% | 18,681 psi | 57% | 840 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 15,229 psi | 47% | 810 fps | 97.2% |
| ADI AP 70N² | <<locked>> | 60% | 22,060 psi | 68% | 945 fps | 99.9% |
| ADI APS 350² | <<locked>> | 60% | 21,669 psi | 66% | 804 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 20,407 psi | 63% | 814 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 19,479 psi | 60% | 833 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 19,914 psi | 61% | 873 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 15,534 psi | 48% | 820 fps | 99.1% |
| Alliant BULLSEYE² | <<locked>> | 60% | 19,203 psi | 59% | 912 fps | 95.5% |
| Alliant Green Dot² | <<locked>> | 60% | 18,231 psi | 56% | 843 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 11,850 psi | 36% | 738 fps | 86.8% |
| Alliant RED DOT² | <<locked>> | 60% | 17,999 psi | 55% | 823 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 21,393 psi | 66% | 955 fps | 96.1% |
| Alliant UNIQUE*² | 4.3 gr | 60% | 15,316 psi | 47% | 833 fps | 91.3% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 17,405 psi | 53% | 827 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 11,066 psi | 34% | 712 fps | 98.8% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 17,854 psi | 55% | 863 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 16,694 psi | 51% | 846 fps | 97.7% |
| Hodgdon Clays² | <<locked>> | 60% | 17,071 psi | 52% | 761 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 60% | 20,131 psi | 62% | 938 fps | 85.2% |
| Hodgdon Longshot*² | <<locked>> | 60% | 21,973 psi | 67% | 974 fps | 89.2% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 7,179 psi | 22% | 545 fps | 97.1% |
| Hodgdon Universal² | <<locked>> | 60% | 18,420 psi | 56% | 879 fps | 99.2% |
| Lovex D036*² | <<locked>> | 60% | 24,004 psi | 74% | 1010 fps | 85.7% |
| Lovex S011² | <<locked>> | 60% | 22,336 psi | 68% | 919 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 16,810 psi | 52% | 860 fps | 95.3% |
| Maxam CSB 1² | <<locked>> | 60% | 14,779 psi | 45% | 797 fps | 96.9% |
| Maxam CSB 2² | <<locked>> | 60% | 15,011 psi | 46% | 833 fps | 99.9% |
| Maxam CSB 3² | <<locked>> | 60% | 16,360 psi | 50% | 823 fps | 99.8% |
| Maxam CSB 4² | <<locked>> | 60% | 18,304 psi | 56% | 846 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 20,189 psi | 62% | 846 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 20,407 psi | 63% | 942 fps | 93.3% |
| Ramshot True Blue*² | <<locked>> | 60% | 23,134 psi | 71% | 991 fps | 90.1% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 19,798 psi | 61% | 909 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 6,860 psi | 21% | 535 fps | 92.3% |
| ReloadSwiss RS 20*² | 4.5 gr | 60% | 13,431 psi | 41% | 810 fps | 91.5% |
| Rottweil P 801² | <<locked>> | 60% | 23,047 psi | 71% | 928 fps | 100% |
| Rottweil P 806* | <<locked>> | 88% | 19,566 psi | 60% | 1027 fps | 85.5% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 24,004 psi | 74% | 1010 fps | 85.7% |
| SNPE Vectan A0*² | <<locked>> | 60% | 14,678 psi | 45% | 791 fps | 90.3% |
| SNPE Vectan A1² | <<locked>> | 60% | 17,912 psi | 55% | 853 fps | 99.4% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 17,216 psi | 53% | 843 fps | 96.8% |
| SNPE Vectan BA10² | <<locked>> | 60% | 22,205 psi | 68% | 840 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 80% | 20,160 psi | 62% | 925 fps | 86.7% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 16,969 psi | 52% | 846 fps | 98% |
| SNPE Vectan SP 2* | <<locked>> | 80% | 25,063 psi | 77% | 1086 fps | 85.7% |
| Somchem MP200*² | <<locked>> | 60% | 17,361 psi | 53% | 869 fps | 91.8% |
| Somchem MS200*² | <<locked>> | 60% | 16,476 psi | 50% | 840 fps | 93.7% |
| Vihtavuori 3N37*² | <<locked>> | 72% | 18,652 psi | 57% | 925 fps | 86.8% |
| Vihtavuori N320² | <<locked>> | 60% | 18,318 psi | 56% | 863 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 10,457 psi | 32% | 659 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 16,476 psi | 50% | 869 fps | 99.1% |
| Vihtavuori N340*² | <<locked>> | 60% | 15,229 psi | 47% | 823 fps | 91.6% |
| Vihtavuori N350*² | <<locked>> | 76% | 18,028 psi | 55% | 909 fps | 86.5% |
| Winchester 231² | <<locked>> | 60% | 23,815 psi | 73% | 958 fps | 100% |
| Winchester AutoComp ² | 4.7 gr | 60% | 14,997 psi | 46% | 810 fps | 95.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
² fill rate low - you might want to consider using a filler to ensure proper ignition.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 58 powders for .40 S&W loaded with the .400 | 170gr | Fiocchi FMJTC. Rottweil P 806 delivers the highest muzzle velocity at 1,165 fps; across all powders the maximum-charge window runs from 715 fps to 1,165 fps. Alliant Herco gives the best case fill at 100 %, and 29 of the 58 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (225 MPa), the top charges use 37–90 %, leaving at least 10 % headroom. Alliant Herco, Baschieri & Pellagri 102 Pistol, 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 UNIQUE, ReloadSwiss RS 20, Winchester AutoComp rank at the top here: for .40 S&W with the .400 | 170gr | Fiocchi FMJTC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 5, Hodgdon HS-6, Hodgdon Longshot burn incompletely and react more sensitively to barrel length and temperature. Accurate No. 2, Accurate No. 5, Accurate Solo 1000 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.