Load Specifications
Load data in caliber 9 x 18 Ultra with .355 | 75gr | Lehigh Defense Controlled Fracturing bullet and 37 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Rottweil P 801, Maxam CSB 5 and Accurate Solo 1000.
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 1000ᴾ | <<locked>> | 100% | 23,337 psi | 89% | 1211 fps | 98% |
| ADI AP 70N* | <<locked>> | 96% | 22,669 psi | 87% | 1280 fps | 92.5% |
| ADI APS 350 | <<locked>> | 88% | 23,206 psi | 89% | 1122 fps | 100% |
| ADI APS 450 | <<locked>> | 88% | 21,002 psi | 80% | 1115 fps | 100% |
| ADI AS 30ᴾ | <<locked>> | 100% | 21,567 psi | 83% | 1191 fps | 99.9% |
| ADI AS 50Nᴾ | <<locked>> | 100% | 22,466 psi | 86% | 1234 fps | 97.2% |
| Alliant BE-86*ᴾ | <<locked>> | 100% | 17,143 psi | 66% | 1135 fps | 89.8% |
| Alliant Green Dotᴾ | <<locked>> | 100% | 20,755 psi | 80% | 1201 fps | 96.5% |
| Alliant RED DOTᴾ | <<locked>> | 100% | 19,667 psi | 75% | 1181 fps | 99.3% |
| Baschieri & Pellagri 100*ᴾ | <<locked>> | 100% | 20,450 psi | 78% | 1165 fps | 94.3% |
| Baschieri & Pellagri 103 Pistolᴾ | <<locked>> | 100% | 21,567 psi | 83% | 1227 fps | 96% |
| Hodgdon CFE Pistol* | <<locked>> | 80% | 20,610 psi | 79% | 1214 fps | 87.9% |
| Hodgdon Claysᴾ | <<locked>> | 100% | 22,249 psi | 85% | 1138 fps | 100% |
| Hodgdon HP38*² | <<locked>> | 76% | 22,495 psi | 86% | 1224 fps | 93.5% |
| Hodgdon TiteGroup² | <<locked>> | 72% | 23,482 psi | 90% | 1227 fps | 99% |
| Hodgdon Universal*ᴾ | <<locked>> | 100% | 19,058 psi | 73% | 1201 fps | 89.8% |
| Lovex D032*² | <<locked>> | 68% | 22,321 psi | 86% | 1171 fps | 88.1% |
| Lovex S011* | <<locked>> | 84% | 21,161 psi | 81% | 1165 fps | 91.7% |
| Maxam CSB 2*ᴾ | <<locked>> | 100% | 12,865 psi | 49% | 1089 fps | 88.4% |
| Maxam CSB 3*ᴾ | <<locked>> | 100% | 19,218 psi | 74% | 1168 fps | 93.6% |
| Maxam CSB 4ᴾ | <<locked>> | 100% | 21,147 psi | 81% | 1204 fps | 97.5% |
| Maxam CSB 5 | <<locked>> | 96% | 22,031 psi | 84% | 1207 fps | 100% |
| Ramshot Zip*² | <<locked>> | 76% | 21,364 psi | 82% | 1204 fps | 91.7% |
| ReloadSwiss RS 12ᴾ | <<locked>> | 100% | 18,579 psi | 71% | 1253 fps | 97.5% |
| Rottweil P 801 | <<locked>> | 96% | 22,017 psi | 84% | 1286 fps | 99.9% |
| Shooters World Clean Shot*² | <<locked>> | 68% | 22,321 psi | 86% | 1171 fps | 88.1% |
| SNPE Vectan A1*ᴾ | <<locked>> | 100% | 23,235 psi | 89% | 1224 fps | 93.2% |
| SNPE Vectan BA 9*ᴾ | <<locked>> | 100% | 22,365 psi | 86% | 1194 fps | 87.8% |
| SNPE Vectan BA10 | <<locked>> | 84% | 22,466 psi | 86% | 1142 fps | 100% |
| SNPE Vectan BA9 1/2*ᴾ | <<locked>> | 100% | 19,377 psi | 74% | 1171 fps | 88.1% |
| Somchem S121*² | <<locked>> | 68% | 20,566 psi | 79% | 1240 fps | 87.9% |
| Vihtavuori N310 | <<locked>> | 80% | 21,886 psi | 84% | 1191 fps | 100% |
| Vihtavuori N320ᴾ | <<locked>> | 100% | 20,247 psi | 78% | 1217 fps | 97.3% |
| Vihtavuori N32C Tin Star*ᴾ | <<locked>> | 100% | 7,165 psi | 27% | 827 fps | 89.5% |
| Vihtavuori N330*ᴾ | <<locked>> | 100% | 18,884 psi | 72% | 1201 fps | 89.5% |
| Winchester 231* | <<locked>> | 88% | 22,698 psi | 87% | 1230 fps | 92.7% |
| Winchester 244*² | <<locked>> | 72% | 21,306 psi | 82% | 1207 fps | 93.6% |
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 1000*² | 2.3 gr | 64% | 10,167 psi | 39% | 873 fps | 85.3% |
| ADI AP 70N* | <<locked>> | 84% | 15,853 psi | 61% | 1122 fps | 86.4% |
| ADI APS 350² | <<locked>> | 60% | 11,066 psi | 42% | 863 fps | 99.6% |
| ADI APS 450² | <<locked>> | 60% | 10,501 psi | 40% | 866 fps | 97.6% |
| ADI AS 30*² | <<locked>> | 60% | 7,992 psi | 31% | 814 fps | 87.7% |
| ADI AS 50N*² | <<locked>> | 72% | 11,560 psi | 44% | 955 fps | 87.1% |
| Alliant BE-86* | <<locked>> | 92% | 14,243 psi | 55% | 1063 fps | 86.5% |
| Alliant Green Dot*² | <<locked>> | 72% | 10,573 psi | 41% | 922 fps | 85.5% |
| Alliant RED DOT*² | <<locked>> | 64% | 7,644 psi | 29% | 817 fps | 85.8% |
| Baschieri & Pellagri 100* | <<locked>> | 80% | 12,720 psi | 49% | 978 fps | 86.5% |
| Baschieri & Pellagri 103 Pistol* | <<locked>> | 80% | 11,951 psi | 46% | 994 fps | 86.5% |
| Hodgdon CFE Pistol*² | <<locked>> | 76% | 18,434 psi | 71% | 1165 fps | 85.8% |
| Hodgdon Clays*² | <<locked>> | 60% | 8,137 psi | 31% | 781 fps | 93.9% |
| Hodgdon HP38*² | <<locked>> | 64% | 14,634 psi | 56% | 1043 fps | 86.3% |
| Hodgdon TiteGroup² | <<locked>> | 60% | 15,896 psi | 61% | 1070 fps | 95.1% |
| Hodgdon Universal* | <<locked>> | 92% | 15,853 psi | 61% | 1122 fps | 86.4% |
| Lovex D032*² | <<locked>> | 64% | 19,363 psi | 74% | 1112 fps | 85.6% |
| Lovex S011*² | <<locked>> | 72% | 15,214 psi | 58% | 1027 fps | 86% |
| Maxam CSB 2* | <<locked>> | 96% | 11,313 psi | 43% | 1033 fps | 85.6% |
| Maxam CSB 3* | <<locked>> | 84% | 12,966 psi | 50% | 1007 fps | 86.9% |
| Maxam CSB 4*² | <<locked>> | 68% | 9,718 psi | 37% | 892 fps | 85.2% |
| Maxam CSB 5*² | 2.1 gr | 60% | 8,586 psi | 33% | 853 fps | 92.2% |
| Ramshot Zip*² | <<locked>> | 68% | 16,810 psi | 64% | 1102 fps | 87.7% |
| ReloadSwiss RS 12* | <<locked>> | 80% | 9,993 psi | 38% | 1001 fps | 87.4% |
| Rottweil P 801*² | 2.9 gr | 64% | 8,238 psi | 32% | 906 fps | 87.5% |
| Shooters World Clean Shot*² | <<locked>> | 64% | 19,363 psi | 74% | 1112 fps | 85.6% |
| SNPE Vectan A1* | <<locked>> | 84% | 15,664 psi | 60% | 1056 fps | 86.7% |
| SNPE Vectan BA 9* | <<locked>> | 96% | 20,044 psi | 77% | 1145 fps | 85.8% |
| SNPE Vectan BA10² | <<locked>> | 60% | 11,458 psi | 44% | 896 fps | 98.4% |
| SNPE Vectan BA9 1/2* | <<locked>> | 96% | 18,275 psi | 70% | 1145 fps | 87% |
| Somchem S121*² | <<locked>> | 64% | 18,347 psi | 70% | 1188 fps | 85.7% |
| Vihtavuori N310² | <<locked>> | 60% | 11,139 psi | 43% | 958 fps | 99.4% |
| Vihtavuori N320*² | <<locked>> | 76% | 10,617 psi | 41% | 958 fps | 86.9% |
| Vihtavuori N32C Tin Star* | <<locked>> | 92% | 6,193 psi | 24% | 774 fps | 86% |
| Vihtavuori N330* | <<locked>> | 92% | 15,693 psi | 60% | 1115 fps | 85.7% |
| Winchester 231*² | <<locked>> | 72% | 14,823 psi | 57% | 1050 fps | 85.4% |
| Winchester 244*² | <<locked>> | 60% | 13,764 psi | 53% | 1024 fps | 86.2% |
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 37 powders for 9 x 18 Ultra loaded with the .355 | 75gr | Lehigh Defense Controlled Fracturing. Rottweil P 801 delivers the highest muzzle velocity at 1,286 fps; across all powders the maximum-charge window runs from 827 fps to 1,286 fps. Accurate Solo 1000 gives the best case fill at 100 %, and 30 of the 37 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (180 MPa), the top charges use 27–90 %, leaving at least 10 % headroom. Accurate Solo 1000, ADI AS 30, ADI AS 50N 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. Rottweil P 801, Maxam CSB 5, Accurate Solo 1000 rank at the top here: for 9 x 18 Ultra with the .355 | 75gr | Lehigh Defense Controlled Fracturing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AP 70N, Alliant BE-86, Baschieri & Pellagri 100 burn incompletely and react more sensitively to barrel length and temperature. Accurate Solo 1000, ADI AP 70N, 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.