Load Specifications
Load data in caliber 9 x 22 MJR with .357 | 127gr | H&N KS HP HS bullet and 63 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 20, Vihtavuori N340 and Alliant UNIQUE.
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% | 32,547 psi | 88% | 1201 fps | 99% |
| Accurate No. 5*² | <<locked>> | 68% | 30,414 psi | 82% | 1243 fps | 91.9% |
| Accurate Solo 1000 | <<locked>> | 84% | 32,169 psi | 87% | 1132 fps | 100% |
| Accurate Solo 1250 | <<locked>> | 92% | 31,720 psi | 86% | 1184 fps | 100% |
| ADI AP 70N² | <<locked>> | 76% | 31,285 psi | 85% | 1201 fps | 100% |
| ADI APS 350² | <<locked>> | 76% | 30,806 psi | 83% | 1007 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 31,299 psi | 85% | 1047 fps | 100% |
| ADI AS 30 | <<locked>> | 84% | 31,198 psi | 84% | 1099 fps | 100% |
| ADI AS 50N | <<locked>> | 84% | 32,605 psi | 88% | 1158 fps | 100% |
| Alliant BE-86 | <<locked>> | 88% | 29,994 psi | 81% | 1161 fps | 100% |
| Alliant BULLSEYE | <<locked>> | 80% | 31,154 psi | 84% | 1230 fps | 100% |
| Alliant Green Dot | <<locked>> | 84% | 31,328 psi | 85% | 1135 fps | 100% |
| Alliant Hercoᴾ | <<locked>> | 100% | 25,280 psi | 68% | 1155 fps | 99% |
| Alliant POWER PISTOL* | <<locked>> | 92% | 31,647 psi | 86% | 1302 fps | 89.6% |
| Alliant RED DOT | <<locked>> | 88% | 31,401 psi | 85% | 1122 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 76% | 33,417 psi | 90% | 1263 fps | 100% |
| Alliant UNIQUE | <<locked>> | 96% | 33,402 psi | 90% | 1276 fps | 100% |
| Baschieri & Pellagri 100 | <<locked>> | 88% | 33,344 psi | 90% | 1152 fps | 100% |
| Baschieri & Pellagri 102 Pistolᴾ | <<locked>> | 100% | 25,846 psi | 70% | 1089 fps | 100% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 29,863 psi | 81% | 1145 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 64% | 31,009 psi | 84% | 1188 fps | 100% |
| Hodgdon Clays | <<locked>> | 92% | 32,169 psi | 87% | 1056 fps | 100% |
| Hodgdon HP38² | <<locked>> | 64% | 31,894 psi | 86% | 1171 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 76% | 32,329 psi | 87% | 1260 fps | 94.8% |
| Hodgdon Longshot² | <<locked>> | 72% | 31,328 psi | 85% | 1247 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 10,138 psi | 27% | 764 fps | 100% |
| Hodgdon Universal | <<locked>> | 84% | 30,124 psi | 81% | 1188 fps | 100% |
| Lovex D036*² | <<locked>> | 68% | 30,356 psi | 82% | 1243 fps | 91.8% |
| Lovex S011² | <<locked>> | 72% | 30,530 psi | 83% | 1138 fps | 100% |
| Lovex S020 | <<locked>> | 84% | 32,053 psi | 87% | 1217 fps | 100% |
| Maxam CSB 1 | <<locked>> | 96% | 31,908 psi | 86% | 1184 fps | 100% |
| Maxam CSB 2 | <<locked>> | 92% | 29,849 psi | 81% | 1184 fps | 100% |
| Maxam CSB 3 | <<locked>> | 88% | 31,053 psi | 84% | 1155 fps | 100% |
| Maxam CSB 4 | <<locked>> | 84% | 31,198 psi | 84% | 1135 fps | 100% |
| Maxam CSB 5 | <<locked>> | 80% | 32,372 psi | 88% | 1102 fps | 100% |
| Ramshot Silhouette² | <<locked>> | 76% | 32,140 psi | 87% | 1247 fps | 99.3% |
| Ramshot True Blue² | <<locked>> | 72% | 33,170 psi | 90% | 1266 fps | 96.8% |
| Ramshot Zip² | <<locked>> | 64% | 30,589 psi | 83% | 1161 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 80% | 30,618 psi | 83% | 1178 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 8,833 psi | 24% | 745 fps | 97.1% |
| ReloadSwiss RS 20 | <<locked>> | 96% | 32,401 psi | 88% | 1266 fps | 100% |
| Rottweil P 801² | <<locked>> | 76% | 32,909 psi | 89% | 1168 fps | 100% |
| Rottweil P 806*ᴾ | <<locked>> | 100% | 25,933 psi | 70% | 1280 fps | 92.7% |
| Shooters World Auto Pistol*² | <<locked>> | 68% | 30,356 psi | 82% | 1243 fps | 91.8% |
| SNPE Vectan A0 | <<locked>> | 96% | 33,011 psi | 89% | 1217 fps | 99.9% |
| SNPE Vectan A1 | <<locked>> | 84% | 32,677 psi | 88% | 1178 fps | 100% |
| SNPE Vectan BA 9 | <<locked>> | 84% | 31,488 psi | 85% | 1175 fps | 100% |
| SNPE Vectan BA10² | <<locked>> | 76% | 32,634 psi | 88% | 1060 fps | 100% |
| SNPE Vectan BA7 1/2ᴾ | <<locked>> | 100% | 31,169 psi | 84% | 1227 fps | 95.4% |
| SNPE Vectan BA9 1/2 | <<locked>> | 88% | 32,140 psi | 87% | 1198 fps | 100% |
| SNPE Vectan SP 2* | <<locked>> | 92% | 33,417 psi | 90% | 1352 fps | 92.7% |
| Somchem MP200 | <<locked>> | 84% | 30,574 psi | 83% | 1220 fps | 99.4% |
| Somchem MS200 | <<locked>> | 88% | 30,618 psi | 83% | 1201 fps | 100% |
| Vihtavuori 3N37 | <<locked>> | 92% | 30,545 psi | 83% | 1250 fps | 96.3% |
| Vihtavuori N310² | <<locked>> | 64% | 29,573 psi | 80% | 1040 fps | 100% |
| Vihtavuori N320 | <<locked>> | 84% | 33,286 psi | 90% | 1168 fps | 100% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 19,885 psi | 54% | 948 fps | 100% |
| Vihtavuori N330 | <<locked>> | 84% | 30,879 psi | 83% | 1201 fps | 100% |
| Vihtavuori N340 | <<locked>> | 88% | 30,472 psi | 82% | 1204 fps | 99.9% |
| Vihtavuori N350ᴾ | <<locked>> | 100% | 31,328 psi | 85% | 1253 fps | 96.8% |
| Winchester 231² | <<locked>> | 72% | 31,807 psi | 86% | 1175 fps | 100% |
| Winchester 572² | <<locked>> | 64% | 31,473 psi | 85% | 1257 fps | 95.6% |
| Winchester AutoComp | <<locked>> | 92% | 30,603 psi | 83% | 1191 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% | 15,171 psi | 41% | 909 fps | 89.9% |
| Accurate No. 5*² | <<locked>> | 60% | 22,191 psi | 60% | 1102 fps | 86.5% |
| Accurate Solo 1000² | <<locked>> | 60% | 17,680 psi | 48% | 922 fps | 100% |
| Accurate Solo 1250² | <<locked>> | 60% | 13,068 psi | 35% | 866 fps | 96.7% |
| ADI AP 70N² | <<locked>> | 60% | 18,884 psi | 51% | 1010 fps | 99.9% |
| ADI APS 350² | <<locked>> | 60% | 20,537 psi | 56% | 879 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 19,566 psi | 53% | 892 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 16,563 psi | 45% | 886 fps | 100% |
| ADI AS 50N² | <<locked>> | 60% | 17,274 psi | 47% | 935 fps | 100% |
| Alliant BE-86² | <<locked>> | 60% | 13,416 psi | 36% | 883 fps | 98.8% |
| Alliant BULLSEYE² | <<locked>> | 60% | 17,825 psi | 48% | 997 fps | 96% |
| Alliant Green Dot² | <<locked>> | 60% | 17,782 psi | 48% | 928 fps | 100% |
| Alliant Herco*² | <<locked>> | 64% | 9,950 psi | 27% | 797 fps | 85.5% |
| Alliant POWER PISTOL* | <<locked>> | 84% | 24,860 psi | 67% | 1188 fps | 85.2% |
| Alliant RED DOT² | <<locked>> | 60% | 15,635 psi | 42% | 886 fps | 100% |
| Alliant Sport Pistol² | <<locked>> | 60% | 20,639 psi | 56% | 1056 fps | 97% |
| Alliant UNIQUE*² | 3.9 gr | 60% | 12,720 psi | 34% | 886 fps | 90% |
| Baschieri & Pellagri 100² | <<locked>> | 60% | 15,156 psi | 41% | 886 fps | 99.9% |
| Baschieri & Pellagri 102 Pistol² | <<locked>> | 60% | 8,862 psi | 24% | 755 fps | 97.7% |
| Baschieri & Pellagri 103 Pistol² | <<locked>> | 60% | 15,998 psi | 43% | 935 fps | 100% |
| Hodgdon CFE Pistol² | <<locked>> | 60% | 26,832 psi | 73% | 1132 fps | 100% |
| Hodgdon Clays² | <<locked>> | 60% | 15,621 psi | 42% | 827 fps | 100% |
| Hodgdon HP38² | <<locked>> | 60% | 28,311 psi | 77% | 1125 fps | 100% |
| Hodgdon HS-6*² | <<locked>> | 60% | 18,463 psi | 50% | 1020 fps | 85.7% |
| Hodgdon Longshot*² | <<locked>> | 60% | 20,479 psi | 55% | 1066 fps | 90% |
| Hodgdon TrailBoss*² | <<locked>> | 60% | 4,047 psi | 11% | 522 fps | 89.1% |
| Hodgdon Universal² | <<locked>> | 60% | 15,621 psi | 42% | 942 fps | 98.9% |
| Lovex D036*² | <<locked>> | 60% | 22,147 psi | 60% | 1102 fps | 86.4% |
| Lovex S011² | <<locked>> | 60% | 21,364 psi | 58% | 1007 fps | 100% |
| Lovex S020² | <<locked>> | 60% | 14,736 psi | 40% | 928 fps | 95.1% |
| Maxam CSB 1² | <<locked>> | 60% | 12,502 psi | 34% | 846 fps | 96.2% |
| Maxam CSB 2² | <<locked>> | 60% | 11,995 psi | 32% | 876 fps | 99.4% |
| Maxam CSB 3² | <<locked>> | 60% | 14,852 psi | 40% | 896 fps | 99.9% |
| Maxam CSB 4² | <<locked>> | 60% | 16,085 psi | 43% | 909 fps | 100% |
| Maxam CSB 5² | <<locked>> | 60% | 18,913 psi | 51% | 925 fps | 100% |
| Ramshot Silhouette*² | <<locked>> | 60% | 19,072 psi | 52% | 1030 fps | 94% |
| Ramshot True Blue*² | <<locked>> | 60% | 21,016 psi | 57% | 1073 fps | 90.5% |
| Ramshot Zip² | <<locked>> | 60% | 27,166 psi | 73% | 1119 fps | 100% |
| ReloadSwiss RS 12² | <<locked>> | 60% | 16,868 psi | 46% | 974 fps | 100% |
| ReloadSwiss RS 14*² | <<locked>> | 68% | 4,583 psi | 12% | 561 fps | 86% |
| ReloadSwiss RS 20*² | 4.1 gr | 60% | 11,560 psi | 31% | 866 fps | 90.7% |
| Rottweil P 801² | <<locked>> | 60% | 19,551 psi | 53% | 991 fps | 100% |
| Rottweil P 806* | <<locked>> | 92% | 19,566 psi | 53% | 1158 fps | 87.8% |
| Shooters World Auto Pistol*² | <<locked>> | 60% | 22,147 psi | 60% | 1102 fps | 86.4% |
| SNPE Vectan A0*² | <<locked>> | 60% | 12,923 psi | 35% | 853 fps | 90% |
| SNPE Vectan A1² | <<locked>> | 60% | 16,578 psi | 45% | 932 fps | 99.6% |
| SNPE Vectan BA 9² | <<locked>> | 60% | 15,838 psi | 43% | 919 fps | 97.1% |
| SNPE Vectan BA10² | <<locked>> | 60% | 21,698 psi | 59% | 925 fps | 100% |
| SNPE Vectan BA7 1/2*² | <<locked>> | 76% | 16,462 psi | 45% | 965 fps | 85.1% |
| SNPE Vectan BA9 1/2² | <<locked>> | 60% | 14,881 psi | 40% | 912 fps | 97.8% |
| SNPE Vectan SP 2* | <<locked>> | 80% | 23,279 psi | 63% | 1188 fps | 86.6% |
| Somchem MP200*² | <<locked>> | 60% | 15,519 psi | 42% | 945 fps | 91.8% |
| Somchem MS200*² | <<locked>> | 60% | 14,417 psi | 39% | 906 fps | 93.3% |
| Vihtavuori 3N37*² | <<locked>> | 72% | 16,665 psi | 45% | 997 fps | 86.9% |
| Vihtavuori N310² | <<locked>> | 60% | 26,760 psi | 72% | 1007 fps | 100% |
| Vihtavuori N320² | <<locked>> | 60% | 15,983 psi | 43% | 925 fps | 100% |
| Vihtavuori N32C Tin Star² | <<locked>> | 60% | 7,397 psi | 20% | 682 fps | 100% |
| Vihtavuori N330² | <<locked>> | 60% | 14,591 psi | 39% | 935 fps | 99% |
| Vihtavuori N340*² | 4.1 gr | 60% | 13,227 psi | 36% | 883 fps | 91.2% |
| Vihtavuori N350*² | <<locked>> | 76% | 16,070 psi | 43% | 981 fps | 86.6% |
| Winchester 231² | <<locked>> | 60% | 22,031 psi | 60% | 1040 fps | 100% |
| Winchester 572*² | <<locked>> | 60% | 26,252 psi | 71% | 1178 fps | 93.1% |
| Winchester AutoComp ² | <<locked>> | 60% | 12,749 psi | 34% | 869 fps | 95.2% |
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 63 powders for 9 x 22 MJR loaded with the .357 | 127gr | H&N KS HP HS. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,352 fps; across all powders the maximum-charge window runs from 745 fps to 1,352 fps. Alliant Herco gives the best case fill at 100 %, and 44 of the 63 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (255 MPa), the top charges use 24–90 %, 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. ReloadSwiss RS 20, Vihtavuori N340, Alliant UNIQUE rank at the top here: for 9 x 22 MJR with the .357 | 127gr | H&N KS HP HS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 5, Alliant POWER PISTOL, Hodgdon HS-6 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.