Load Specifications
Load data in caliber 9 x 21 with .356 | 147gr | LEE Mold 356-147-TC bullet and 62 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant UNIQUE, Lovex S020 and ReloadSwiss RS 20.
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: 4.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2 | <<locked>> | 84% | 28,036 psi | 82% | 955 fps | 97.1% |
| Accurate No. 5*² | <<locked>> | 72% | 29,196 psi | 86% | 1027 fps | 89.9% |
| Accurate Solo 1000 | <<locked>> | 88% | 30,618 psi | 90% | 935 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 96% | 29,950 psi | 88% | 981 fps | 100% |
| ADI AP 70N | <<locked>> | 80% | 29,182 psi | 86% | 994 fps | 100% |
| ADI APS 350 | <<locked>> | 80% | 30,327 psi | 89% | 840 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 27,876 psi | 82% | 846 fps | 100% |
| ADI AS 30 | <<locked>> | 88% | 29,762 psi | 87% | 912 fps | 100% |
| ADI AS 50N | <<locked>> | 84% | 28,166 psi | 83% | 932 fps | 100% |
| Alliant BE-86 | <<locked>> | 96% | 30,705 psi | 90% | 988 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 30,284 psi | 89% | 1027 fps | 99.8% |
| Alliant Green Dot | <<locked>> | 88% | 27,717 psi | 81% | 932 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 21,364 psi | 63% | 922 fps | 97% |
| Alliant RED DOT | <<locked>> | 92% | 29,776 psi | 87% | 932 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 27,833 psi | 82% | 997 fps | 99.1% |
| Alliant UNIQUE | <<locked>> | 96% | 27,920 psi | 82% | 1014 fps | 99.2% |
| Baschieri & Pellagri 100 | <<locked>> | 92% | 30,763 psi | 90% | 945 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 21,480 psi | 63% | 876 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 28,195 psi | 83% | 951 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 27,949 psi | 82% | 978 fps | 100% |
| Hodgdon Clays | <<locked>> | 92% | 29,617 psi | 87% | 863 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 26,643 psi | 78% | 932 fps | 100% |
| Hodgdon HS-6* | <<locked>> | 80% | 30,052 psi | 88% | 1030 fps | 92.6% |
| Hodgdon Longshot*² | <<locked>> | 76% | 29,269 psi | 86% | 1024 fps | 94.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 8,615 psi | 25% | 617 fps | 99.3% |
| Hodgdon Universal | <<locked>> | 92% | 30,806 psi | 90% | 1010 fps | 100% |
| Lovex D036*² | <<locked>> | 72% | 29,153 psi | 86% | 1027 fps | 89.8% |
| Lovex S011² | <<locked>> | 76% | 29,907 psi | 88% | 948 fps | 100% |
| Lovex S020 | <<locked>> | 88% | 30,081 psi | 88% | 1007 fps | 100% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 29,356 psi | 86% | 971 fps | 100% |
| Maxam CSB 2 | <<locked>> | 96% | 27,543 psi | 81% | 981 fps | 100% |
| Maxam CSB 3 | <<locked>> | 92% | 29,211 psi | 86% | 955 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 29,762 psi | 87% | 945 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 27,195 psi | 80% | 879 fps | 100% |
| Ramshot Silhouette | <<locked>> | 80% | 30,676 psi | 90% | 1033 fps | 98.5% |
| Ramshot True Blue*² | <<locked>> | 72% | 27,325 psi | 80% | 991 fps | 93.3% |
| Ramshot Zip² | <<locked>> | 68% | 30,168 psi | 89% | 974 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 88% | 30,806 psi | 90% | 1004 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 6,991 psi | 21% | 587 fps | 93.7% |
| ReloadSwiss RS 20ᴾ | <<locked>> | 100% | 29,472 psi | 86% | 1040 fps | 100% |
| Rottweil P 801 | <<locked>> | 80% | 30,023 psi | 88% | 965 fps | 100% |
| Shooters World Auto Pistol*² | <<locked>> | 72% | 29,153 psi | 86% | 1027 fps | 89.8% |
| SNPE Vectan A0 | <<locked>> | 96% | 28,253 psi | 83% | 968 fps | 98.9% |
| SNPE Vectan A1 | <<locked>> | 84% | 28,326 psi | 83% | 948 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 30,240 psi | 89% | 974 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 29,631 psi | 87% | 863 fps | 100% |
| SNPE Vectan BA7 1/2*ᴾ | <<locked>> | 100% | 25,802 psi | 76% | 961 fps | 91.6% |
| SNPE Vectan BA9 1/2 | <<locked>> | 88% | 28,036 psi | 82% | 968 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 96% | 30,327 psi | 89% | 1106 fps | 90.2% |
| Somchem MP200 | <<locked>> | 88% | 28,543 psi | 84% | 1004 fps | 98.6% |
| Somchem MS200 | <<locked>> | 92% | 28,616 psi | 84% | 991 fps | 99.6% |
| Vihtavuori 3N37* | <<locked>> | 96% | 26,861 psi | 79% | 1004 fps | 93.7% |
| Vihtavuori N310² | <<locked>> | 68% | 29,298 psi | 86% | 876 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 27,340 psi | 80% | 932 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 16,476 psi | 48% | 764 fps | 100% |
| Vihtavuori N330 | <<locked>> | 88% | 27,702 psi | 81% | 984 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 27,644 psi | 81% | 981 fps | 99.1% |
| Vihtavuori N350*ᴾ | <<locked>> | 100% | 25,759 psi | 76% | 984 fps | 93.4% |
| Winchester 231² | <<locked>> | 76% | 30,168 psi | 89% | 974 fps | 100% |
| Winchester 244² | <<locked>> | 64% | 30,124 psi | 88% | 968 fps | 100% |
| Winchester 572*² | <<locked>> | 68% | 29,849 psi | 88% | 1033 fps | 93.8% |
| Winchester AutoComp | <<locked>> | 96% | 28,297 psi | 83% | 981 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 4.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2*² | <<locked>> | 60% | 13,169 psi | 39% | 722 fps | 86.1% |
| Accurate No. 5*² | <<locked>> | 68% | 25,237 psi | 74% | 974 fps | 87.5% |
| Accurate Solo 1000² | <<locked>> | 60% | 14,692 psi | 43% | 732 fps | 100% |
| Accurate Solo 1250*² | <<locked>> | 60% | 10,979 psi | 32% | 689 fps | 93.7% |
| ADI AP 70N² | <<locked>> | 60% | 15,925 psi | 47% | 810 fps | 98.8% |
| ADI APS 350² | <<locked>> | 60% | 18,173 psi | 53% | 709 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 17,114 psi | 50% | 722 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 14,823 psi | 43% | 725 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 14,446 psi | 42% | 745 fps | 99.9% |
| Alliant BE-86² | <<locked>> | 60% | 10,979 psi | 32% | 699 fps | 96.5% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 15,519 psi | 46% | 797 fps | 93.3% |
| Alliant Green Dot² | <<locked>> | 60% | 13,198 psi | 39% | 722 fps | 99.7% |
| Alliant Herco*² | <<locked>> | 72% | 10,878 psi | 32% | 709 fps | 86.7% |
| Alliant RED DOT² | <<locked>> | 60% | 13,532 psi | 40% | 719 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 17,376 psi | 51% | 837 fps | 94.1% |
| Alliant UNIQUE*² | 2.7 gr | 60% | 10,515 psi | 31% | 699 fps | 85.8% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 12,850 psi | 38% | 709 fps | 98.9% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 7,266 psi | 21% | 600 fps | 94.9% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 12,618 psi | 37% | 738 fps | 99.5% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 21,248 psi | 62% | 896 fps | 99.5% |
| Hodgdon Clays² | <<locked>> | 60% | 13,663 psi | 40% | 669 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 23,728 psi | 70% | 899 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 68% | 20,320 psi | 60% | 896 fps | 86.3% |
| Hodgdon Longshot*² | <<locked>> | 60% | 16,708 psi | 49% | 833 fps | 85.3% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 3,423 psi | 10% | 417 fps | 85.2% |
| Hodgdon Universal² | <<locked>> | 60% | 12,937 psi | 38% | 748 fps | 96.8% |
| Lovex D036*² | <<locked>> | 68% | 25,208 psi | 74% | 971 fps | 87.4% |
| Lovex S011² | <<locked>> | 60% | 17,898 psi | 53% | 797 fps | 99.6% |
| Lovex S020*² | 2.9 gr | 60% | 11,995 psi | 35% | 728 fps | 91.3% |
| Maxam CSB 1*² | <<locked>> | 60% | 10,515 psi | 31% | 673 fps | 93.1% |
| Maxam CSB 2² | <<locked>> | 60% | 9,718 psi | 29% | 699 fps | 97.6% |
| Maxam CSB 3² | <<locked>> | 60% | 12,299 psi | 36% | 709 fps | 98.6% |
| Maxam CSB 4² | <<locked>> | 60% | 14,141 psi | 41% | 738 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 16,288 psi | 48% | 748 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 15,258 psi | 45% | 801 fps | 89.6% |
| Ramshot True Blue*² | <<locked>> | 60% | 18,217 psi | 53% | 856 fps | 86.9% |
| Ramshot Zip² | <<locked>> | 60% | 22,698 psi | 67% | 889 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 12,966 psi | 38% | 771 fps | 100% |
| ReloadSwiss RS 14* | <<locked>> | 80% | 4,612 psi | 14% | 489 fps | 86% |
| ReloadSwiss RS 20*² | 2.8 gr | 60% | 9,340 psi | 27% | 673 fps | 85.3% |
| Rottweil P 801² | <<locked>> | 60% | 15,896 psi | 47% | 794 fps | 100% |
| Shooters World Auto Pistol*² | <<locked>> | 68% | 25,208 psi | 74% | 971 fps | 87.4% |
| SNPE Vectan A0*² | <<locked>> | 60% | 10,979 psi | 32% | 673 fps | 85.9% |
| SNPE Vectan A1² | <<locked>> | 60% | 14,112 psi | 41% | 741 fps | 98.1% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 13,460 psi | 39% | 728 fps | 94.3% |
| SNPE Vectan BA10² | <<locked>> | 60% | 18,478 psi | 54% | 741 fps | 100% |
| SNPE Vectan BA7 1/2* | <<locked>> | 88% | 19,145 psi | 56% | 863 fps | 86.7% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 12,502 psi | 37% | 725 fps | 95.2% |
| SNPE Vectan SP 2* | <<locked>> | 88% | 23,482 psi | 69% | 1014 fps | 86% |
| Somchem MP200*² | <<locked>> | 60% | 12,836 psi | 38% | 741 fps | 87.6% |
| Somchem MS200*² | <<locked>> | 60% | 11,632 psi | 34% | 702 fps | 88.9% |
| Vihtavuori 3N37* | <<locked>> | 80% | 17,521 psi | 51% | 863 fps | 86.9% |
| Vihtavuori N310² | <<locked>> | 60% | 23,598 psi | 69% | 820 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 13,213 psi | 39% | 741 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 5,685 psi | 17% | 535 fps | 98.8% |
| Vihtavuori N330² | <<locked>> | 60% | 11,473 psi | 34% | 732 fps | 96.3% |
| Vihtavuori N340*² | <<locked>> | 60% | 10,646 psi | 31% | 689 fps | 86.5% |
| Vihtavuori N350* | <<locked>> | 84% | 16,578 psi | 49% | 840 fps | 86.1% |
| Winchester 231² | <<locked>> | 60% | 18,855 psi | 55% | 833 fps | 99.8% |
| Winchester 244² | <<locked>> | 60% | 25,396 psi | 75% | 915 fps | 100% |
| Winchester 572*² | <<locked>> | 60% | 21,828 psi | 64% | 925 fps | 89.1% |
| Winchester AutoComp *² | <<locked>> | 60% | 10,733 psi | 31% | 692 fps | 92.1% |
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 62 powders for 9 x 21 loaded with the .356 | 147gr | LEE Mold 356-147-TC. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,106 fps; across all powders the maximum-charge window runs from 587 fps to 1,106 fps. Alliant Herco gives the best case fill at 100 %, and 47 of the 62 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (235 MPa), the top charges use 21–90 %, 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, Lovex S020, ReloadSwiss RS 20 rank at the top here: for 9 x 21 with the .356 | 147gr | LEE Mold 356-147-TC 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.