Load Specifications
Load data in caliber 9 x 21 with .358 | 80gr | Rim Rock DEWC bullet and 53 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N330, Hodgdon Universal and ReloadSwiss RS 12.
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>> | 88% | 30,560 psi | 90% | 1486 fps | 92.9% |
| Accurate Solo 1000 | <<locked>> | 88% | 29,733 psi | 87% | 1437 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 96% | 28,384 psi | 83% | 1473 fps | 99.3% |
| ADI AP 70N | <<locked>> | 80% | 28,355 psi | 83% | 1499 fps | 99.7% |
| ADI APS 350 | <<locked>> | 80% | 28,587 psi | 84% | 1296 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 29,254 psi | 86% | 1345 fps | 100% |
| ADI AS 30 | <<locked>> | 88% | 28,500 psi | 84% | 1398 fps | 100% |
| ADI AS 50N | <<locked>> | 84% | 27,847 psi | 82% | 1434 fps | 100% |
| Alliant BE-86 | <<locked>> | 96% | 29,762 psi | 87% | 1496 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 29,269 psi | 86% | 1532 fps | 96.3% |
| Alliant Green Dot | <<locked>> | 92% | 30,385 psi | 89% | 1480 fps | 100% |
| Alliant Herco*ᴾ | <<locked>> | 100% | 20,827 psi | 61% | 1352 fps | 90.6% |
| Alliant RED DOT | <<locked>> | 92% | 29,559 psi | 87% | 1444 fps | 100% |
| Alliant Sport Pistol | <<locked>> | 80% | 29,805 psi | 87% | 1542 fps | 95.8% |
| Alliant UNIQUEᴾ | <<locked>> | 100% | 29,863 psi | 88% | 1558 fps | 96% |
| Baschieri & Pellagri 100 | <<locked>> | 92% | 30,545 psi | 90% | 1460 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 21,016 psi | 62% | 1322 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 27,485 psi | 81% | 1440 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 68% | 26,542 psi | 78% | 1457 fps | 98.2% |
| Hodgdon Clays | <<locked>> | 92% | 28,674 psi | 84% | 1335 fps | 100% |
| Hodgdon HP38² | <<locked>> | 68% | 30,066 psi | 88% | 1486 fps | 100% |
| Hodgdon TrailBoss*ᴾ | <<locked>> | 100% | 8,804 psi | 26% | 919 fps | 94.7% |
| Hodgdon Universal | <<locked>> | 92% | 30,197 psi | 89% | 1532 fps | 99.9% |
| Lovex S011² | <<locked>> | 76% | 28,761 psi | 84% | 1444 fps | 99.9% |
| Lovex S020 | <<locked>> | 88% | 28,877 psi | 85% | 1503 fps | 97.3% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 29,341 psi | 86% | 1486 fps | 99.6% |
| Maxam CSB 2ᴾ | <<locked>> | 100% | 28,572 psi | 84% | 1522 fps | 100% |
| Maxam CSB 3 | <<locked>> | 96% | 30,603 psi | 90% | 1493 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 28,181 psi | 83% | 1437 fps | 100% |
| Maxam CSB 5 | <<locked>> | 84% | 28,979 psi | 85% | 1401 fps | 100% |
| Ramshot Silhouette* | <<locked>> | 80% | 28,993 psi | 85% | 1519 fps | 93.2% |
| Ramshot True Blue*² | <<locked>> | 76% | 29,892 psi | 88% | 1526 fps | 88.1% |
| Ramshot Zip² | <<locked>> | 68% | 28,761 psi | 84% | 1470 fps | 99.8% |
| ReloadSwiss RS 12 | <<locked>> | 88% | 29,863 psi | 88% | 1529 fps | 100% |
| ReloadSwiss RS 14*ᴾ | <<locked>> | 100% | 7,934 psi | 23% | 892 fps | 87.9% |
| ReloadSwiss RS 20ᴾ | <<locked>> | 100% | 27,688 psi | 81% | 1535 fps | 97.1% |
| Rottweil P 801 | <<locked>> | 80% | 29,573 psi | 87% | 1480 fps | 100% |
| SNPE Vectan A0ᴾ | <<locked>> | 100% | 29,849 psi | 88% | 1493 fps | 95.6% |
| SNPE Vectan A1 | <<locked>> | 88% | 30,255 psi | 89% | 1480 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 29,066 psi | 85% | 1463 fps | 98.4% |
| SNPE Vectan BA10² | <<locked>> | 76% | 28,166 psi | 83% | 1329 fps | 100% |
| SNPE Vectan BA9 1/2 | <<locked>> | 92% | 29,617 psi | 87% | 1499 fps | 99.4% |
| Somchem MP200* | <<locked>> | 88% | 28,384 psi | 83% | 1503 fps | 93.9% |
| Somchem MS200 | <<locked>> | 96% | 30,139 psi | 88% | 1522 fps | 96.9% |
| Vihtavuori 3N37*ᴾ | <<locked>> | 100% | 29,863 psi | 88% | 1549 fps | 88.5% |
| Vihtavuori N310² | <<locked>> | 68% | 28,427 psi | 83% | 1358 fps | 100% |
| Vihtavuori N320 | <<locked>> | 88% | 29,037 psi | 85% | 1470 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 15,983 psi | 47% | 1161 fps | 100% |
| Vihtavuori N330 | <<locked>> | 92% | 30,661 psi | 90% | 1555 fps | 100% |
| Vihtavuori N340 | <<locked>> | 96% | 30,429 psi | 89% | 1526 fps | 96.2% |
| Winchester 231² | <<locked>> | 76% | 29,776 psi | 87% | 1486 fps | 99.9% |
| Winchester 244² | <<locked>> | 64% | 29,327 psi | 86% | 1473 fps | 100% |
| Winchester AutoComp ᴾ | <<locked>> | 100% | 30,705 psi | 90% | 1526 fps | 99.3% |
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>> | 76% | 21,408 psi | 63% | 1306 fps | 87.2% |
| Accurate Solo 1000² | <<locked>> | 60% | 15,011 psi | 44% | 1119 fps | 98.1% |
| Accurate Solo 1250*² | <<locked>> | 60% | 11,342 psi | 33% | 1033 fps | 86.7% |
| ADI AP 70N*² | <<locked>> | 60% | 15,911 psi | 47% | 1204 fps | 93.8% |
| ADI APS 350² | <<locked>> | 60% | 18,202 psi | 53% | 1109 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 17,013 psi | 50% | 1115 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 14,489 psi | 43% | 1099 fps | 99.9% |
| ADI AS 50N² | <<locked>> | 60% | 15,418 psi | 45% | 1148 fps | 97.8% |
| Alliant BE-86*² | <<locked>> | 60% | 11,298 psi | 33% | 1043 fps | 90.2% |
| Alliant BULLSEYE*² | <<locked>> | 60% | 15,113 psi | 44% | 1175 fps | 85.4% |
| Alliant Green Dot² | <<locked>> | 60% | 13,953 psi | 41% | 1106 fps | 96.8% |
| Alliant Herco* | <<locked>> | 88% | 16,128 psi | 47% | 1220 fps | 85.8% |
| Alliant RED DOT² | <<locked>> | 60% | 13,721 psi | 40% | 1093 fps | 99.5% |
| Alliant Sport Pistol*² | <<locked>> | 60% | 17,027 psi | 50% | 1234 fps | 86.6% |
| Alliant UNIQUE*² | <<locked>> | 76% | 16,853 psi | 49% | 1250 fps | 86.6% |
| Baschieri & Pellagri 100*² | <<locked>> | 60% | 13,198 psi | 39% | 1076 fps | 94.6% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 60% | 7,614 psi | 22% | 886 fps | 87.5% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 13,213 psi | 39% | 1112 fps | 95.7% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 20,378 psi | 60% | 1322 fps | 95.2% |
| Hodgdon Clays² | <<locked>> | 60% | 13,909 psi | 41% | 1037 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 23,554 psi | 69% | 1365 fps | 99.2% |
| Hodgdon TrailBoss*² | <<locked>> | 72% | 5,526 psi | 16% | 741 fps | 86.4% |
| Hodgdon Universal*² | 4.3 gr | 60% | 13,547 psi | 40% | 1125 fps | 91.1% |
| Lovex S011² | <<locked>> | 60% | 17,985 psi | 53% | 1214 fps | 96.3% |
| Lovex S020*² | <<locked>> | 64% | 13,837 psi | 41% | 1138 fps | 85.8% |
| Maxam CSB 1*² | <<locked>> | 60% | 10,515 psi | 31% | 994 fps | 85.3% |
| Maxam CSB 2*² | <<locked>> | 60% | 9,529 psi | 28% | 1017 fps | 90.1% |
| Maxam CSB 3*² | <<locked>> | 60% | 12,372 psi | 36% | 1066 fps | 93.5% |
| Maxam CSB 4² | <<locked>> | 60% | 14,083 psi | 41% | 1115 fps | 97.8% |
| Maxam CSB 5² | <<locked>> | 60% | 15,722 psi | 46% | 1142 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 68% | 19,798 psi | 58% | 1312 fps | 86.6% |
| Ramshot True Blue*² | <<locked>> | 72% | 26,614 psi | 78% | 1463 fps | 86.1% |
| Ramshot Zip² | <<locked>> | 60% | 22,582 psi | 66% | 1348 fps | 98.4% |
| ReloadSwiss RS 12² | 4.4 gr | 60% | 13,039 psi | 38% | 1152 fps | 97.7% |
| ReloadSwiss RS 14* | <<locked>> | 92% | 7,005 psi | 21% | 840 fps | 85.4% |
| ReloadSwiss RS 20*² | <<locked>> | 76% | 14,968 psi | 44% | 1201 fps | 86.3% |
| Rottweil P 801² | <<locked>> | 60% | 16,824 psi | 49% | 1227 fps | 100% |
| SNPE Vectan A0*² | <<locked>> | 76% | 17,013 psi | 50% | 1201 fps | 86.5% |
| SNPE Vectan A1*² | <<locked>> | 60% | 14,098 psi | 41% | 1109 fps | 92.8% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 13,518 psi | 40% | 1086 fps | 87.4% |
| SNPE Vectan BA10² | <<locked>> | 60% | 18,623 psi | 55% | 1155 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 60% | 12,836 psi | 38% | 1083 fps | 88.6% |
| Somchem MP200*² | <<locked>> | 72% | 18,623 psi | 55% | 1276 fps | 86.7% |
| Somchem MS200*² | <<locked>> | 68% | 15,229 psi | 45% | 1161 fps | 86% |
| Vihtavuori 3N37* | <<locked>> | 96% | 26,339 psi | 77% | 1483 fps | 86.3% |
| Vihtavuori N310² | <<locked>> | 60% | 21,712 psi | 64% | 1250 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 13,474 psi | 40% | 1125 fps | 97.6% |
| Vihtavuori N32C Tin Star*² | <<locked>> | 60% | 6,440 psi | 19% | 817 fps | 94.9% |
| Vihtavuori N330*² | 4.5 gr | 60% | 11,922 psi | 35% | 1096 fps | 89.4% |
| Vihtavuori N340*² | <<locked>> | 72% | 15,998 psi | 47% | 1198 fps | 85.9% |
| Winchester 231² | <<locked>> | 60% | 18,057 psi | 53% | 1240 fps | 96% |
| Winchester 244² | <<locked>> | 60% | 25,527 psi | 75% | 1407 fps | 99.8% |
| Winchester AutoComp *² | <<locked>> | 64% | 12,183 psi | 36% | 1070 fps | 86.5% |
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 53 powders for 9 x 21 loaded with the .358 | 80gr | Rim Rock DEWC. Alliant UNIQUE delivers the highest muzzle velocity at 1,558 fps; across all powders the maximum-charge window runs from 892 fps to 1,558 fps. Alliant Herco gives the best case fill at 100 %, and 44 of the 53 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (235 MPa), the top charges use 23–90 %, leaving at least 10 % headroom. Alliant Herco, Alliant UNIQUE, Baschieri & Pellagri 102 Pistol 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. Vihtavuori N330, Hodgdon Universal, ReloadSwiss RS 12 rank at the top here: for 9 x 21 with the .358 | 80gr | Rim Rock DEWC they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 2, Alliant Herco, Hodgdon TrailBoss burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, Accurate Solo 1250, ADI APS 350 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.