Load Specifications
Load data in caliber 9 x 20 VGW with .358 | 125gr | Rim Rock RNFP BP Lube bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori 3N37, Alliant UNIQUE 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: 4.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate No. 2 | <<locked>> | 84% | 35,447 psi | 81% | 1247 fps | 99.6% |
| Accurate No. 5² | <<locked>> | 72% | 37,797 psi | 87% | 1348 fps | 95.2% |
| Accurate Solo 1000 | <<locked>> | 88% | 38,000 psi | 87% | 1201 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 96% | 38,827 psi | 89% | 1266 fps | 100% |
| ADI AP 100*ᴾ | <<locked>> | 100% | 26,789 psi | 62% | 1184 fps | 87.9% |
| ADI AP 70N | <<locked>> | 80% | 37,507 psi | 86% | 1273 fps | 100% |
| ADI APS 350 | <<locked>> | 84% | 37,289 psi | 86% | 1083 fps | 100% |
| ADI APS 450 | <<locked>> | 84% | 35,752 psi | 82% | 1102 fps | 100% |
| ADI AS 30 | <<locked>> | 92% | 39,247 psi | 90% | 1184 fps | 100% |
| ADI AS 50N | <<locked>> | 88% | 39,088 psi | 90% | 1230 fps | 100% |
| Alliant BE-86 | <<locked>> | 92% | 37,478 psi | 86% | 1243 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 84% | 37,768 psi | 87% | 1319 fps | 100% |
| Alliant Green Dot | <<locked>> | 92% | 38,435 psi | 88% | 1227 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 29,037 psi | 67% | 1211 fps | 99.8% |
| Alliant POWER PISTOL* | <<locked>> | 96% | 38,058 psi | 87% | 1394 fps | 92.8% |
| Alliant RED DOT | <<locked>> | 92% | 36,840 psi | 85% | 1184 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 36,143 psi | 83% | 1299 fps | 100% |
| Alliant UNIQUE | <<locked>> | 96% | 37,797 psi | 87% | 1332 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 36,637 psi | 84% | 1191 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 28,703 psi | 66% | 1125 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 84% | 37,318 psi | 86% | 1224 fps | 100% |
| Hodgdon CFE Pistol | <<locked>> | 88% | 35,795 psi | 82% | 1247 fps | 100% |
| Hodgdon Clays | <<locked>> | 96% | 37,855 psi | 87% | 1122 fps | 100% |
| Hodgdon HP38² | <<locked>> | 68% | 38,667 psi | 89% | 1247 fps | 100% |
| Hodgdon HS-6² | <<locked>> | 76% | 35,302 psi | 81% | 1302 fps | 96.2% |
| Hodgdon Longshot² | <<locked>> | 76% | 38,914 psi | 89% | 1348 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 12,024 psi | 28% | 801 fps | 100% |
| Hodgdon Universal | <<locked>> | 88% | 37,507 psi | 86% | 1273 fps | 100% |
| Lovex D036² | <<locked>> | 72% | 37,739 psi | 87% | 1352 fps | 95.2% |
| Lovex S011² | <<locked>> | 76% | 37,550 psi | 86% | 1220 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 35,288 psi | 81% | 1257 fps | 100% |
| Maxam CSB 1ᴾ | <<locked>> | 100% | 38,551 psi | 89% | 1260 fps | 100% |
| Maxam CSB 2 | <<locked>> | 96% | 37,536 psi | 86% | 1263 fps | 100% |
| Maxam CSB 3 | <<locked>> | 92% | 36,825 psi | 85% | 1220 fps | 100% |
| Maxam CSB 4 | <<locked>> | 88% | 37,101 psi | 85% | 1204 fps | 100% |
| Maxam CSB 5 | <<locked>> | 84% | 37,463 psi | 86% | 1158 fps | 100% |
| Ramshot Silhouette | <<locked>> | 80% | 39,059 psi | 90% | 1335 fps | 100% |
| Ramshot True Blue² | <<locked>> | 72% | 36,274 psi | 83% | 1309 fps | 97.9% |
| Ramshot Zip² | <<locked>> | 68% | 38,493 psi | 88% | 1253 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 38,725 psi | 89% | 1260 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 10,979 psi | 25% | 794 fps | 99.1% |
| ReloadSwiss RS 20ᴾ | <<locked>> | 100% | 39,015 psi | 90% | 1342 fps | 100% |
| Rottweil P 801² | <<locked>> | 76% | 35,737 psi | 82% | 1194 fps | 100% |
| Rottweil P 806ᴾ | <<locked>> | 100% | 31,140 psi | 72% | 1348 fps | 95.5% |
| Shooters World Auto Pistol² | <<locked>> | 72% | 37,739 psi | 87% | 1352 fps | 95.2% |
| SNPE Vectan A0ᴾ | <<locked>> | 100% | 38,885 psi | 89% | 1289 fps | 100% |
| SNPE Vectan A1 | <<locked>> | 88% | 38,609 psi | 89% | 1243 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 88% | 37,347 psi | 86% | 1250 fps | 100% |
| SNPE Vectan BA10 | <<locked>> | 80% | 37,043 psi | 85% | 1115 fps | 100% |
| SNPE Vectan BA7 1/2ᴾ | <<locked>> | 100% | 34,142 psi | 78% | 1273 fps | 96.7% |
| SNPE Vectan BA9 1/2 | <<locked>> | 92% | 38,783 psi | 89% | 1273 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 92% | 38,348 psi | 88% | 1417 fps | 94.9% |
| Somchem MP200 | <<locked>> | 88% | 37,942 psi | 87% | 1316 fps | 100% |
| Somchem MS200 | <<locked>> | 92% | 37,028 psi | 85% | 1283 fps | 100% |
| Somchem S221* | <<locked>> | 80% | 35,056 psi | 81% | 1322 fps | 88.6% |
| Vihtavuori 3N37 | <<locked>> | 96% | 37,333 psi | 86% | 1339 fps | 98.4% |
| Vihtavuori N310² | <<locked>> | 68% | 36,883 psi | 85% | 1119 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 35,621 psi | 82% | 1198 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 22,568 psi | 52% | 981 fps | 100% |
| Vihtavuori N330 | <<locked>> | 88% | 38,276 psi | 88% | 1283 fps | 100% |
| Vihtavuori N340 | <<locked>> | 92% | 37,101 psi | 85% | 1286 fps | 100% |
| Vihtavuori N350ᴾ | <<locked>> | 100% | 34,780 psi | 80% | 1302 fps | 98% |
| Winchester 231² | <<locked>> | 76% | 38,493 psi | 88% | 1253 fps | 100% |
| Winchester 244² | <<locked>> | 64% | 37,797 psi | 87% | 1237 fps | 100% |
| Winchester 572² | <<locked>> | 64% | 33,953 psi | 78% | 1293 fps | 96.7% |
| Winchester AutoComp | <<locked>> | 96% | 37,652 psi | 87% | 1273 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% | 17,187 psi | 40% | 955 fps | 92.1% |
| Accurate No. 5*² | <<locked>> | 60% | 25,179 psi | 58% | 1161 fps | 89.1% |
| Accurate Solo 1000² | <<locked>> | 60% | 19,102 psi | 44% | 948 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 15,345 psi | 35% | 919 fps | 98.4% |
| ADI AP 100* | <<locked>> | 96% | 24,366 psi | 56% | 1142 fps | 86.1% |
| ADI AP 70N² | <<locked>> | 60% | 21,727 psi | 50% | 1056 fps | 100% |
| ADI APS 350² | <<locked>> | 60% | 22,017 psi | 51% | 906 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 20,842 psi | 48% | 919 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 18,536 psi | 43% | 919 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 20,131 psi | 46% | 984 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 15,606 psi | 36% | 928 fps | 99.7% |
| Alliant BULLSEYE² | <<locked>> | 60% | 19,928 psi | 46% | 1043 fps | 97.4% |
| Alliant Green Dot² | <<locked>> | 60% | 18,144 psi | 42% | 948 fps | 100% |
| Alliant Herco*² | <<locked>> | 60% | 11,226 psi | 26% | 827 fps | 87.9% |
| Alliant POWER PISTOL* | <<locked>> | 80% | 24,642 psi | 57% | 1184 fps | 85.4% |
| Alliant RED DOT² | <<locked>> | 60% | 17,753 psi | 41% | 922 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 22,582 psi | 52% | 1096 fps | 98.1% |
| Alliant UNIQUE*² | 4.2 gr | 60% | 15,185 psi | 35% | 945 fps | 93.1% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 17,564 psi | 40% | 935 fps | 100% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 10,544 psi | 24% | 794 fps | 99.2% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 17,883 psi | 41% | 968 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 16,839 psi | 39% | 958 fps | 98.8% |
| Hodgdon Clays² | <<locked>> | 60% | 17,085 psi | 39% | 856 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 30,327 psi | 70% | 1155 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 60% | 20,726 psi | 48% | 1070 fps | 88.2% |
| Hodgdon Longshot*² | <<locked>> | 60% | 22,829 psi | 52% | 1112 fps | 92.1% |
| Hodgdon TrailBoss² | <<locked>> | 60% | 5,831 psi | 13% | 587 fps | 95.5% |
| Hodgdon Universal² | <<locked>> | 60% | 18,449 psi | 42% | 994 fps | 99.8% |
| Lovex D036*² | <<locked>> | 60% | 25,135 psi | 58% | 1161 fps | 89% |
| Lovex S011² | <<locked>> | 60% | 23,438 psi | 54% | 1047 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 17,143 psi | 39% | 978 fps | 97% |
| Maxam CSB 1² | <<locked>> | 60% | 14,112 psi | 32% | 883 fps | 97.6% |
| Maxam CSB 2² | <<locked>> | 60% | 14,156 psi | 33% | 919 fps | 100% |
| Maxam CSB 3² | <<locked>> | 60% | 16,491 psi | 38% | 928 fps | 100% |
| Maxam CSB 4² | <<locked>> | 60% | 18,594 psi | 43% | 955 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 20,639 psi | 47% | 951 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 60% | 20,856 psi | 48% | 1066 fps | 95.4% |
| Ramshot True Blue*² | <<locked>> | 60% | 24,134 psi | 55% | 1132 fps | 93% |
| Ramshot Zip² | <<locked>> | 60% | 30,211 psi | 69% | 1161 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 19,247 psi | 44% | 1010 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 60% | 5,366 psi | 12% | 568 fps | 89.4% |
| ReloadSwiss RS 20*² | <<locked>> | 60% | 12,952 psi | 30% | 902 fps | 93% |
| Rottweil P 801² | <<locked>> | 60% | 22,684 psi | 52% | 1033 fps | 100% |
| Rottweil P 806* | <<locked>> | 84% | 18,449 psi | 42% | 1122 fps | 86.8% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 25,135 psi | 58% | 1161 fps | 89% |
| SNPE Vectan A0*² | <<locked>> | 60% | 14,199 psi | 33% | 883 fps | 91.8% |
| SNPE Vectan A1² | <<locked>> | 60% | 18,492 psi | 43% | 971 fps | 100% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 17,709 psi | 41% | 958 fps | 98.3% |
| SNPE Vectan BA10² | <<locked>> | 60% | 22,858 psi | 53% | 948 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 72% | 16,868 psi | 39% | 971 fps | 85.8% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 17,202 psi | 40% | 958 fps | 99.1% |
| SNPE Vectan SP 2*² | <<locked>> | 76% | 23,598 psi | 54% | 1188 fps | 87.1% |
| Somchem MP200*² | 4.8 gr | 60% | 17,637 psi | 41% | 991 fps | 93.9% |
| Somchem MS200*² | <<locked>> | 60% | 15,969 psi | 37% | 938 fps | 94.9% |
| Somchem S221*² | <<locked>> | 76% | 31,256 psi | 72% | 1266 fps | 86.6% |
| Vihtavuori 3N37*² | 5.7 gr | 68% | 16,592 psi | 38% | 991 fps | 87% |
| Vihtavuori N310² | <<locked>> | 60% | 28,442 psi | 65% | 1030 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 18,739 psi | 43% | 974 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 9,471 psi | 22% | 728 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 17,027 psi | 39% | 984 fps | 99.8% |
| Vihtavuori N340*² | <<locked>> | 60% | 15,403 psi | 35% | 935 fps | 93.8% |
| Vihtavuori N350*² | <<locked>> | 68% | 14,721 psi | 34% | 942 fps | 85.1% |
| Winchester 231² | <<locked>> | 60% | 24,149 psi | 56% | 1076 fps | 100% |
| Winchester 244² | <<locked>> | 60% | 32,880 psi | 76% | 1184 fps | 100% |
| Winchester 572² | <<locked>> | 60% | 29,791 psi | 68% | 1234 fps | 95.1% |
| Winchester AutoComp ² | <<locked>> | 60% | 14,924 psi | 34% | 915 fps | 97.2% |
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 46 powders for 9 x 20 VGW loaded with the .358 | 125gr | Rim Rock RNFP BP Lube. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,417 fps; across all powders the maximum-charge window runs from 794 fps to 1,417 fps. Alliant Herco gives the best case fill at 100 %, and 46 of the 46 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (300 MPa), the top charges use 25–90 %, 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. Vihtavuori 3N37, Alliant UNIQUE, Somchem MP200 rank at the top here: for 9 x 20 VGW with the .358 | 125gr | Rim Rock RNFP BP Lube they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant POWER PISTOL, SNPE Vectan SP 2 burn incompletely and react more sensitively to barrel length and temperature. ADI APS 350, ADI APS 450, ADI AS 30 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.