Load Specifications
Load data in caliber 10 mm FAR with .401 | 170gr | Rim Rock SWC Top Shelf 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 Somchem MP200.
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: 5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2 | <<locked>> | 84% | 28,108 psi | 86% | 1030 fps | 96.7% |
| Accurate Solo 1000 | <<locked>> | 84% | 29,080 psi | 89% | 994 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 92% | 27,340 psi | 84% | 1027 fps | 100% |
| ADI AP 70N² | <<locked>> | 76% | 27,427 psi | 84% | 1047 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 27,673 psi | 85% | 879 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 28,413 psi | 87% | 919 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 28,326 psi | 87% | 965 fps | 100% |
| ADI AS 50N | <<locked>> | 80% | 27,340 psi | 84% | 994 fps | 100% |
| Alliant BE-86 | <<locked>> | 92% | 29,515 psi | 90% | 1050 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 80% | 28,036 psi | 86% | 1076 fps | 99.3% |
| Alliant Green Dot | <<locked>> | 88% | 29,283 psi | 90% | 1017 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 22,524 psi | 69% | 1007 fps | 97.2% |
| Alliant RED DOT | <<locked>> | 88% | 28,326 psi | 87% | 988 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 29,095 psi | 89% | 1093 fps | 99.2% |
| Alliant UNIQUE | <<locked>> | 96% | 29,283 psi | 90% | 1109 fps | 99.3% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 28,892 psi | 89% | 1001 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 22,423 psi | 69% | 955 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 28,558 psi | 88% | 1030 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 28,819 psi | 88% | 1063 fps | 100% |
| Hodgdon Clays | <<locked>> | 92% | 29,385 psi | 90% | 928 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 27,775 psi | 85% | 1017 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 76% | 26,948 psi | 83% | 1066 fps | 90.5% |
| Hodgdon Longshot*² | <<locked>> | 72% | 26,832 psi | 82% | 1066 fps | 92.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 9,790 psi | 30% | 682 fps | 99.7% |
| Hodgdon Universal | <<locked>> | 84% | 27,427 psi | 84% | 1047 fps | 100% |
| Lovex S011² | <<locked>> | 72% | 27,499 psi | 84% | 997 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 27,514 psi | 84% | 1053 fps | 99.7% |
| Maxam CSB 1 | <<locked>> | 96% | 27,717 psi | 85% | 1027 fps | 100% |
| Maxam CSB 2 | <<locked>> | 96% | 28,645 psi | 88% | 1070 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 26,760 psi | 82% | 1001 fps | 100% |
| Maxam CSB 4 | <<locked>> | 84% | 26,745 psi | 82% | 984 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 28,834 psi | 88% | 968 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 27,340 psi | 84% | 1070 fps | 97.2% |
| Ramshot True Blue*² | <<locked>> | 72% | 28,572 psi | 88% | 1086 fps | 93.5% |
| Ramshot Zip² | <<locked>> | 64% | 26,643 psi | 82% | 1010 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 29,486 psi | 90% | 1066 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 8,470 psi | 26% | 659 fps | 95.8% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 26,672 psi | 82% | 1086 fps | 99.8% |
| Rottweil P 801² | <<locked>> | 76% | 28,558 psi | 88% | 1020 fps | 100% |
| SNPE Vectan A0 | <<locked>> | 96% | 29,109 psi | 89% | 1053 fps | 98.9% |
| SNPE Vectan A1 | <<locked>> | 84% | 28,892 psi | 89% | 1027 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 84% | 27,818 psi | 85% | 1020 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 72% | 27,137 psi | 83% | 906 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 27,064 psi | 83% | 1050 fps | 91.7% |
| SNPE Vectan BA9 1/2 | <<locked>> | 88% | 28,079 psi | 86% | 1040 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 92% | 26,789 psi | 82% | 1138 fps | 87.6% |
| Somchem MP200 | <<locked>> | 84% | 26,977 psi | 83% | 1060 fps | 97.8% |
| Somchem MS200 | <<locked>> | 92% | 29,066 psi | 89% | 1070 fps | 99.5% |
| Vihtavuori 3N37* | <<locked>> | 96% | 27,847 psi | 85% | 1093 fps | 93.7% |
| Vihtavuori N310² | <<locked>> | 64% | 25,962 psi | 80% | 909 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 28,166 psi | 86% | 1014 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 17,753 psi | 54% | 837 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 26,020 psi | 80% | 1040 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 28,747 psi | 88% | 1070 fps | 99.2% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 26,310 psi | 81% | 1070 fps | 93.2% |
| Winchester 231² | <<locked>> | 72% | 27,746 psi | 85% | 1024 fps | 100% |
| Winchester 572*² | <<locked>> | 64% | 26,600 psi | 82% | 1066 fps | 91.6% |
| Winchester AutoComp | <<locked>> | 96% | 29,109 psi | 89% | 1066 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*² | <<locked>> | 60% | 13,547 psi | 42% | 781 fps | 86% |
| Accurate Solo 1000² | <<locked>> | 60% | 15,577 psi | 48% | 801 fps | 100% |
| Accurate Solo 1250*² | <<locked>> | 60% | 12,212 psi | 37% | 764 fps | 94.8% |
| ADI AP 70N² | <<locked>> | 60% | 17,172 psi | 53% | 886 fps | 99% |
| ADI APS 350² | <<locked>> | 60% | 19,014 psi | 58% | 774 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 17,245 psi | 53% | 778 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 15,563 psi | 48% | 787 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 16,346 psi | 50% | 830 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 12,154 psi | 37% | 774 fps | 97.3% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 15,838 psi | 49% | 863 fps | 93.1% |
| Alliant Green Dot² | <<locked>> | 60% | 14,605 psi | 45% | 797 fps | 99.9% |
| Alliant Herco*² | <<locked>> | 68% | 10,791 psi | 33% | 745 fps | 85.7% |
| Alliant RED DOT² | <<locked>> | 60% | 14,634 psi | 45% | 787 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 18,478 psi | 57% | 919 fps | 94.5% |
| Alliant UNIQUE*² | 3.6 gr | 60% | 11,676 psi | 36% | 771 fps | 87.1% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 14,228 psi | 44% | 784 fps | 99.3% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 8,180 psi | 25% | 663 fps | 96% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 14,098 psi | 43% | 820 fps | 99.8% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 22,002 psi | 67% | 971 fps | 99.5% |
| Hodgdon Clays² | <<locked>> | 60% | 14,547 psi | 45% | 732 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 24,526 psi | 75% | 974 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 68% | 21,103 psi | 65% | 974 fps | 86.4% |
| Hodgdon Longshot*² | <<locked>> | 60% | 17,419 psi | 53% | 906 fps | 85.4% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 4,743 psi | 15% | 489 fps | 91% |
| Hodgdon Universal² | <<locked>> | 60% | 14,214 psi | 44% | 823 fps | 97.4% |
| Lovex S011² | <<locked>> | 60% | 18,985 psi | 58% | 876 fps | 99.7% |
| Lovex S020*² | <<locked>> | 60% | 13,184 psi | 40% | 807 fps | 92.2% |
| Maxam CSB 1*² | <<locked>> | 60% | 11,211 psi | 34% | 735 fps | 93.6% |
| Maxam CSB 2² | <<locked>> | 60% | 10,501 psi | 32% | 764 fps | 98% |
| Maxam CSB 3² | <<locked>> | 60% | 13,140 psi | 40% | 778 fps | 98.8% |
| Maxam CSB 4² | <<locked>> | 60% | 14,852 psi | 46% | 804 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 17,289 psi | 53% | 820 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 16,578 psi | 51% | 886 fps | 90.4% |
| Ramshot True Blue*² | <<locked>> | 60% | 18,594 psi | 57% | 925 fps | 86.6% |
| Ramshot Zip² | <<locked>> | 60% | 23,482 psi | 72% | 968 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 14,808 psi | 45% | 856 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 64% | 4,859 psi | 15% | 502 fps | 86% |
| ReloadSwiss RS 20*² | 3.8 gr | 60% | 10,515 psi | 32% | 751 fps | 87.1% |
| Rottweil P 801² | <<locked>> | 60% | 17,463 psi | 54% | 873 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 60% | 11,734 psi | 36% | 735 fps | 86.4% |
| SNPE Vectan A1² | <<locked>> | 60% | 14,997 psi | 46% | 814 fps | 98.3% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 14,315 psi | 44% | 797 fps | 94.7% |
| SNPE Vectan BA10² | <<locked>> | 60% | 19,203 psi | 59% | 807 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 84% | 18,333 psi | 56% | 909 fps | 85.2% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 13,387 psi | 41% | 791 fps | 95.6% |
| SNPE Vectan SP 2* | <<locked>> | 88% | 24,033 psi | 74% | 1096 fps | 85.7% |
| Somchem MP200*² | 4.1 gr | 60% | 13,576 psi | 42% | 810 fps | 88% |
| Somchem MS200*² | <<locked>> | 60% | 13,184 psi | 40% | 787 fps | 90.4% |
| Vihtavuori 3N37* | <<locked>> | 80% | 18,376 psi | 56% | 942 fps | 87.1% |
| Vihtavuori N310² | <<locked>> | 60% | 23,322 psi | 71% | 879 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 14,634 psi | 45% | 820 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 7,237 psi | 22% | 610 fps | 99.9% |
| Vihtavuori N330² | <<locked>> | 60% | 12,749 psi | 39% | 814 fps | 97.1% |
| Vihtavuori N340*² | <<locked>> | 60% | 11,937 psi | 37% | 768 fps | 87.9% |
| Vihtavuori N350* | <<locked>> | 84% | 17,187 psi | 53% | 912 fps | 86.1% |
| Winchester 231² | <<locked>> | 60% | 18,927 psi | 58% | 896 fps | 99.7% |
| Winchester 572*² | <<locked>> | 60% | 22,872 psi | 70% | 1010 fps | 89.3% |
| Winchester AutoComp *² | <<locked>> | 60% | 11,763 psi | 36% | 761 fps | 92.9% |
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 10 mm FAR loaded with the .401 | 170gr | Rim Rock SWC Top Shelf. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,138 fps; across all powders the maximum-charge window runs from 659 fps to 1,138 fps. Alliant Herco gives the best case fill at 100 %, and 42 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 26–90 %, 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, Somchem MP200 rank at the top here: for 10 mm FAR with the .401 | 170gr | Rim Rock SWC Top Shelf they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Hodgdon HS-6, Hodgdon Longshot, Ramshot True Blue burn incompletely and react more sensitively to barrel length and temperature. Accurate No. 2, Accurate Solo 1000, Accurate Solo 1250 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.