Load Specifications
Load data in caliber 9 x 18 Ultra with .355 | 95gr | CamPro RN bullet and 47 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Maxam CSB 2, Accurate Solo 1250 and Maxam CSB 3.
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 Solo 1000 | <<locked>> | 80% | 22,829 psi | 87% | 1106 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 88% | 21,567 psi | 83% | 1125 fps | 96.5% |
| ADI AP 70N² | <<locked>> | 76% | 22,698 psi | 87% | 1171 fps | 97.8% |
| ADI APS 350² | <<locked>> | 72% | 23,032 psi | 88% | 1010 fps | 100% |
| ADI APS 450² | <<locked>> | 76% | 23,148 psi | 89% | 1047 fps | 100% |
| ADI AS 30 | <<locked>> | 80% | 22,771 psi | 87% | 1093 fps | 100% |
| ADI AS 50N | <<locked>> | 80% | 23,424 psi | 90% | 1138 fps | 100% |
| Alliant BE-86 | <<locked>> | 88% | 22,234 psi | 85% | 1145 fps | 98.7% |
| Alliant BULLSEYE* | <<locked>> | 80% | 23,540 psi | 90% | 1191 fps | 92.7% |
| Alliant Green Dot | <<locked>> | 84% | 23,061 psi | 88% | 1135 fps | 100% |
| Alliant Herco*ᴾ | <<locked>> | 100% | 18,565 psi | 71% | 1093 fps | 87.7% |
| Alliant RED DOT | <<locked>> | 84% | 22,611 psi | 87% | 1112 fps | 100% |
| Alliant Sport Pistol*² | <<locked>> | 72% | 21,756 psi | 83% | 1148 fps | 90.3% |
| Alliant UNIQUE* | <<locked>> | 92% | 23,003 psi | 88% | 1198 fps | 91.6% |
| Baschieri & Pellagri 100 | <<locked>> | 84% | 22,814 psi | 87% | 1115 fps | 99.6% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 18,579 psi | 71% | 1073 fps | 99.5% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 21,640 psi | 83% | 1129 fps | 99.7% |
| Hodgdon CFE Pistol*² | <<locked>> | 64% | 20,813 psi | 80% | 1125 fps | 94.9% |
| Hodgdon Clays | <<locked>> | 84% | 23,047 psi | 88% | 1043 fps | 100% |
| Hodgdon TrailBoss*ᴾ | <<locked>> | 100% | 7,963 psi | 31% | 745 fps | 92.8% |
| Hodgdon Universal | <<locked>> | 84% | 22,698 psi | 87% | 1171 fps | 97.8% |
| Lovex S011² | <<locked>> | 68% | 21,640 psi | 83% | 1096 fps | 97.8% |
| Lovex S020* | <<locked>> | 84% | 22,931 psi | 88% | 1171 fps | 93.8% |
| Maxam CSB 1 | <<locked>> | 92% | 22,321 psi | 86% | 1138 fps | 97% |
| Maxam CSB 2 | <<locked>> | 96% | 23,235 psi | 89% | 1211 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 23,061 psi | 88% | 1145 fps | 99.6% |
| Maxam CSB 4 | <<locked>> | 80% | 21,625 psi | 83% | 1106 fps | 100% |
| Maxam CSB 5² | <<locked>> | 76% | 22,902 psi | 88% | 1096 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 76% | 22,916 psi | 88% | 1171 fps | 88.4% |
| Ramshot Zip² | <<locked>> | 64% | 23,351 psi | 89% | 1152 fps | 98.3% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 21,611 psi | 83% | 1175 fps | 100% |
| ReloadSwiss RS 20* | <<locked>> | 96% | 22,843 psi | 88% | 1204 fps | 93.6% |
| Rottweil P 801² | <<locked>> | 72% | 20,987 psi | 80% | 1125 fps | 100% |
| SNPE Vectan A0* | <<locked>> | 92% | 22,394 psi | 86% | 1129 fps | 90.5% |
| SNPE Vectan A1 | <<locked>> | 80% | 22,017 psi | 84% | 1115 fps | 98% |
| SNPE Vectan BA 9* | <<locked>> | 80% | 21,132 psi | 81% | 1096 fps | 94.2% |
| SNPE Vectan BA10² | <<locked>> | 68% | 21,959 psi | 84% | 1027 fps | 100% |
| SNPE Vectan BA9 1/2 | <<locked>> | 84% | 21,727 psi | 83% | 1132 fps | 96.3% |
| Somchem MP200* | <<locked>> | 84% | 23,192 psi | 89% | 1175 fps | 89.8% |
| Somchem MS200* | <<locked>> | 88% | 22,989 psi | 88% | 1158 fps | 92.6% |
| Vihtavuori N310² | <<locked>> | 64% | 23,467 psi | 90% | 1079 fps | 100% |
| Vihtavuori N320 | <<locked>> | 80% | 21,379 psi | 82% | 1125 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 14,388 psi | 55% | 951 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 21,103 psi | 81% | 1161 fps | 97.8% |
| Vihtavuori N340* | <<locked>> | 88% | 22,350 psi | 86% | 1152 fps | 91.1% |
| Winchester 231² | <<locked>> | 68% | 21,277 psi | 82% | 1112 fps | 97.5% |
| Winchester AutoComp | <<locked>> | 92% | 22,568 psi | 86% | 1158 fps | 96% |
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 Solo 1000² | <<locked>> | 60% | 13,953 psi | 53% | 912 fps | 97% |
| Accurate Solo 1250*² | 3.2 gr | 64% | 11,458 psi | 44% | 876 fps | 86.3% |
| ADI AP 70N*² | <<locked>> | 60% | 14,779 psi | 57% | 988 fps | 92.1% |
| ADI APS 350² | <<locked>> | 60% | 16,853 psi | 65% | 906 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 15,461 psi | 59% | 906 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 13,692 psi | 52% | 902 fps | 99.6% |
| ADI AS 50N² | <<locked>> | 60% | 13,822 psi | 53% | 925 fps | 96.2% |
| Alliant BE-86*² | <<locked>> | 60% | 10,356 psi | 40% | 850 fps | 88% |
| Alliant BULLSEYE*² | <<locked>> | 68% | 17,738 psi | 68% | 1060 fps | 87.8% |
| Alliant Green Dot² | <<locked>> | 60% | 12,908 psi | 49% | 899 fps | 95.3% |
| Alliant Herco* | <<locked>> | 96% | 17,143 psi | 66% | 1056 fps | 86.3% |
| Alliant RED DOT² | <<locked>> | 60% | 12,633 psi | 48% | 892 fps | 98.8% |
| Alliant Sport Pistol*² | <<locked>> | 64% | 17,999 psi | 69% | 1063 fps | 86.9% |
| Alliant UNIQUE* | <<locked>> | 80% | 16,868 psi | 65% | 1056 fps | 85.9% |
| Baschieri & Pellagri 100*² | <<locked>> | 60% | 11,937 psi | 46% | 869 fps | 92.5% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 64% | 7,571 psi | 29% | 748 fps | 86.8% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 60% | 11,937 psi | 46% | 906 fps | 93.7% |
| Hodgdon CFE Pistol*² | <<locked>> | 60% | 18,217 psi | 70% | 1070 fps | 92.9% |
| Hodgdon Clays² | <<locked>> | 60% | 12,850 psi | 49% | 846 fps | 100% |
| Hodgdon TrailBoss* | <<locked>> | 80% | 5,918 psi | 23% | 650 fps | 87.2% |
| Hodgdon Universal*² | <<locked>> | 60% | 12,009 psi | 46% | 902 fps | 88.3% |
| Lovex S011*² | <<locked>> | 60% | 16,607 psi | 64% | 988 fps | 94.7% |
| Lovex S020*² | <<locked>> | 68% | 14,576 psi | 56% | 981 fps | 86.1% |
| Maxam CSB 1*² | <<locked>> | 64% | 11,052 psi | 42% | 856 fps | 85.8% |
| Maxam CSB 2*² | 3.1 gr | 60% | 8,876 psi | 34% | 840 fps | 88.4% |
| Maxam CSB 3*² | 2.9 gr | 60% | 11,516 psi | 44% | 873 fps | 91.9% |
| Maxam CSB 4² | <<locked>> | 60% | 12,328 psi | 47% | 892 fps | 95.9% |
| Maxam CSB 5² | <<locked>> | 60% | 14,214 psi | 54% | 928 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 72% | 20,218 psi | 77% | 1115 fps | 86.1% |
| Ramshot Zip² | <<locked>> | 60% | 20,247 psi | 78% | 1093 fps | 96.9% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 11,980 psi | 46% | 948 fps | 96.5% |
| ReloadSwiss RS 20* | <<locked>> | 80% | 15,287 psi | 59% | 1024 fps | 85.8% |
| Rottweil P 801² | <<locked>> | 60% | 14,634 psi | 56% | 991 fps | 99.7% |
| SNPE Vectan A0* | <<locked>> | 80% | 17,216 psi | 66% | 1014 fps | 85.8% |
| SNPE Vectan A1*² | <<locked>> | 60% | 13,155 psi | 50% | 906 fps | 91% |
| SNPE Vectan BA 9*² | <<locked>> | 60% | 12,560 psi | 48% | 886 fps | 85.2% |
| SNPE Vectan BA10² | <<locked>> | 60% | 17,477 psi | 67% | 948 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 60% | 11,458 psi | 44% | 869 fps | 85.8% |
| Somchem MP200*² | <<locked>> | 76% | 18,724 psi | 72% | 1079 fps | 85.9% |
| Somchem MS200*² | <<locked>> | 72% | 15,331 psi | 59% | 981 fps | 85.3% |
| Vihtavuori N310² | <<locked>> | 60% | 20,740 psi | 79% | 1040 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 11,937 psi | 46% | 906 fps | 95.8% |
| Vihtavuori N32C Tin Star*² | <<locked>> | 60% | 6,005 psi | 23% | 669 fps | 93.3% |
| Vihtavuori N330*² | <<locked>> | 60% | 10,776 psi | 41% | 886 fps | 86.6% |
| Vihtavuori N340*² | <<locked>> | 76% | 16,056 psi | 62% | 1014 fps | 85.2% |
| Winchester 231*² | <<locked>> | 60% | 16,665 psi | 64% | 1014 fps | 94.4% |
| Winchester AutoComp *² | <<locked>> | 68% | 12,299 psi | 47% | 909 fps | 86% |
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 47 powders for 9 x 18 Ultra loaded with the .355 | 95gr | CamPro RN. Maxam CSB 2 delivers the highest muzzle velocity at 1,211 fps; across all powders the maximum-charge window runs from 745 fps to 1,211 fps. Alliant Herco gives the best case fill at 100 %, and 34 of the 47 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (180 MPa), the top charges use 31–90 %, 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. Maxam CSB 2, Accurate Solo 1250, Maxam CSB 3 rank at the top here: for 9 x 18 Ultra with the .355 | 95gr | CamPro RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant BULLSEYE, Alliant Herco, Alliant Sport Pistol burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, Accurate Solo 1250, ADI AP 70N 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.