Load data for 9 mm Para + .356 | 123gr | LOS FP

9 mm Para cartridge drawing
LOS logo

Load Specifications

Bullet Manufacturer:LOS
Bullet Weight:123 gr
Bullet Diameter:0.356"
Bullet Length:<<locked>>
Case Length (l3):0.754"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:13.79 Grains of Water
Primer Size:Small Pistol (SP)
Barrel Length:4"
Max. allowed Pressure:34,084 psi

Load data in caliber 9 mm Para with .356 | 123gr | LOS FP bullet and 61 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant UNIQUE, ReloadSwiss RS 20 and Somchem MS200.

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"

PowderChargeFRMaxP%V(0)z
Accurate No. 2<<locked>>80%29,138 psi85%1083 fps96.1%
Accurate No. 5*²<<locked>>68%30,124 psi88%1148 fps88.1%
Accurate Solo 1000<<locked>>80%29,167 psi86%1033 fps100%
Accurate Solo 1250<<locked>>88%28,747 psi84%1079 fps100%
ADI AP 70N²<<locked>>72%28,587 psi84%1089 fps100%
ADI APS 350²<<locked>>76%30,342 psi89%948 fps100%
ADI APS 450²<<locked>>76%28,761 psi84%965 fps100%
ADI AS 30<<locked>>80%28,587 psi84%1004 fps100%
ADI AS 50N²<<locked>>76%28,282 psi83%1037 fps100%
Alliant BE-86<<locked>>88%29,834 psi88%1089 fps100%
Alliant BULLSEYE²<<locked>>76%27,934 psi82%1106 fps98.6%
Alliant Green Dot<<locked>>84%30,501 psi89%1070 fps100%
Alliant Hercoᴾ<<locked>>100%26,440 psi78%1086 fps97.6%
Alliant RED DOT<<locked>>84%30,168 psi89%1043 fps100%
Alliant Sport Pistol²<<locked>>72%29,327 psi86%1129 fps98.5%
Alliant UNIQUE<<locked>>88%28,718 psi84%1129 fps98.4%
Baschieri & Pellagri 100<<locked>>84%30,139 psi88%1053 fps100%
Baschieri & Pellagri 102 Pistolᴾ<<locked>>100%26,876 psi79%1037 fps100%
Baschieri & Pellagri 103 Pistol<<locked>>80%29,834 psi88%1076 fps100%
Hodgdon CFE Pistol<<locked>>84%29,327 psi86%1096 fps100%
Hodgdon Clays<<locked>>88%30,110 psi88%978 fps100%
Hodgdon HS-6*²<<locked>>72%28,355 psi83%1115 fps89.6%
Hodgdon Longshot*²<<locked>>68%27,209 psi80%1102 fps91.2%
Hodgdon TrailBossᴾ<<locked>>100%12,604 psi37%751 fps100%
Hodgdon Universal<<locked>>80%28,587 psi84%1089 fps100%
Lovex D036*²<<locked>>68%30,066 psi88%1152 fps88.1%
Lovex S011²<<locked>>72%30,487 psi89%1073 fps100%
Lovex S020<<locked>>80%28,660 psi84%1099 fps99.4%
Maxam CSB 1<<locked>>92%29,501 psi87%1086 fps100%
Maxam CSB 2<<locked>>92%30,443 psi89%1122 fps100%
Maxam CSB 3<<locked>>84%28,964 psi85%1063 fps100%
Maxam CSB 4<<locked>>80%28,500 psi84%1040 fps100%
Maxam CSB 5²<<locked>>76%28,790 psi84%1004 fps100%
Ramshot Silhouette²<<locked>>72%27,804 psi82%1106 fps96.2%
Ramshot True Blue*²<<locked>>68%28,790 psi84%1119 fps92.1%
Ramshot Zip²<<locked>>64%30,385 psi89%1093 fps100%
ReloadSwiss RS 12²<<locked>>76%28,790 psi84%1086 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%11,371 psi33%735 fps97.7%
ReloadSwiss RS 20<<locked>>92%28,282 psi83%1135 fps99.5%
Rottweil P 801²<<locked>>72%29,718 psi87%1063 fps100%
Rottweil P 806*ᴾ<<locked>>100%25,802 psi76%1184 fps88.9%
Shooters World Auto Pistol*²<<locked>>68%30,066 psi88%1152 fps88.1%
SNPE Vectan A0<<locked>>92%29,921 psi88%1102 fps98.4%
SNPE Vectan A1<<locked>>80%29,269 psi86%1070 fps100%
SNPE Vectan BA 9<<locked>>84%30,443 psi89%1093 fps100%
SNPE Vectan BA10²<<locked>>72%28,747 psi84%965 fps100%
SNPE Vectan BA7 1/2*ᴾ<<locked>>100%30,313 psi89%1129 fps91.9%
SNPE Vectan BA9 1/2<<locked>>84%29,907 psi88%1099 fps100%
SNPE Vectan SP 2*<<locked>>88%29,660 psi87%1204 fps87.1%
Somchem MP200<<locked>>84%30,618 psi90%1138 fps97.9%
Somchem MS200<<locked>>84%27,818 psi82%1086 fps98.7%
Vihtavuori 3N37*<<locked>>92%28,921 psi85%1142 fps92.7%
Vihtavuori N310²<<locked>>64%29,080 psi85%978 fps100%
Vihtavuori N320<<locked>>80%28,631 psi84%1053 fps100%
Vihtavuori N32C Tin Starᴾ<<locked>>100%25,251 psi74%955 fps100%
Vihtavuori N330<<locked>>84%28,732 psi84%1109 fps100%
Vihtavuori N340<<locked>>88%29,298 psi86%1112 fps98.6%
Vihtavuori N350*<<locked>>96%29,080 psi85%1142 fps93.1%
Winchester 231²<<locked>>68%27,963 psi82%1063 fps100%
Winchester 572*²<<locked>>64%30,603 psi90%1158 fps92.2%
Winchester AutoComp <<locked>>88%27,891 psi82%1083 fps99.9%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 4"

PowderChargeFRMaxP%V(0)z
Accurate No. 2*²<<locked>>60%16,215 psi48%856 fps87.3%
Accurate No. 5*²<<locked>>64%26,063 psi76%1086 fps85.5%
Accurate Solo 1000²<<locked>>60%17,869 psi52%863 fps100%
Accurate Solo 1250²<<locked>>60%14,910 psi44%837 fps95.8%
ADI AP 70N²<<locked>>60%21,248 psi62%974 fps99.5%
ADI APS 350²<<locked>>60%20,740 psi61%830 fps100%
ADI APS 450²<<locked>>60%20,218 psi59%850 fps100%
ADI AS 30²<<locked>>60%18,173 psi53%850 fps100%
ADI AS 50N²<<locked>>60%19,377 psi57%902 fps100%
Alliant BE-86²<<locked>>60%14,591 psi43%837 fps97.8%
Alliant BULLSEYE*²<<locked>>60%18,666 psi55%942 fps93.9%
Alliant Green Dot²<<locked>>60%17,303 psi51%863 fps100%
Alliant Herco*²<<locked>>64%12,299 psi36%784 fps85.7%
Alliant RED DOT²<<locked>>60%17,274 psi51%850 fps100%
Alliant Sport Pistol*²<<locked>>60%20,856 psi61%984 fps94.6%
Alliant UNIQUE*²3.4 gr60%14,736 psi43%853 fps89.1%
Baschieri & Pellagri 100²<<locked>>60%17,027 psi50%856 fps99.7%
Baschieri & Pellagri 102 Pistol²<<locked>>60%10,704 psi31%735 fps97.7%
Baschieri & Pellagri 103 Pistol²<<locked>>60%17,172 psi50%889 fps99.9%
Hodgdon CFE Pistol²<<locked>>60%16,476 psi48%876 fps96.6%
Hodgdon Clays²<<locked>>60%16,302 psi48%784 fps100%
Hodgdon HS-6*²<<locked>>64%22,133 psi65%1010 fps85.2%
Hodgdon Longshot*²<<locked>>60%21,002 psi62%994 fps86.7%
Hodgdon TrailBoss²<<locked>>60%6,918 psi20%558 fps95.6%
Hodgdon Universal²<<locked>>60%17,680 psi52%902 fps98.3%
Lovex D036*²<<locked>>64%26,078 psi77%1086 fps85.5%
Lovex S011²<<locked>>60%22,002 psi65%955 fps99.9%
Lovex S020*²<<locked>>60%16,578 psi49%889 fps93.8%
Maxam CSB 1*²<<locked>>60%13,808 psi41%804 fps94.9%
Maxam CSB 2²<<locked>>60%13,895 psi41%846 fps99.1%
Maxam CSB 3²<<locked>>60%15,722 psi46%843 fps99.2%
Maxam CSB 4²<<locked>>60%17,506 psi51%873 fps100%
Maxam CSB 5²<<locked>>60%20,044 psi59%886 fps100%
Ramshot Silhouette*²<<locked>>60%19,682 psi58%965 fps91.3%
Ramshot True Blue*²<<locked>>60%22,278 psi65%1014 fps87.8%
Ramshot Zip²<<locked>>60%26,818 psi79%1043 fps100%
ReloadSwiss RS 12²<<locked>>60%18,246 psi54%928 fps100%
ReloadSwiss RS 14*²<<locked>>60%6,599 psi19%545 fps90.2%
ReloadSwiss RS 20*²3.5 gr60%12,546 psi37%814 fps88.4%
Rottweil P 801²<<locked>>60%21,944 psi64%958 fps100%
Rottweil P 806*<<locked>>96%22,582 psi66%1125 fps86.4%
Shooters World Auto Pistol*²<<locked>>64%26,078 psi77%1086 fps85.5%
SNPE Vectan A0*²<<locked>>60%14,127 psi41%807 fps88%
SNPE Vectan A1²<<locked>>60%17,767 psi52%886 fps98.8%
SNPE Vectan BA 9²<<locked>>60%17,071 psi50%873 fps95.6%
SNPE Vectan BA10²<<locked>>60%22,466 psi66%883 fps100%
SNPE Vectan BA7 1/2*<<locked>>84%21,205 psi62%981 fps85.9%
SNPE Vectan BA9 1/2²<<locked>>60%16,302 psi48%869 fps96.6%
SNPE Vectan SP 2*<<locked>>84%26,687 psi78%1155 fps85.1%
Somchem MP200*²<<locked>>60%16,810 psi49%892 fps89.7%
Somchem MS200*²3.4 gr60%15,287 psi45%846 fps91%
Vihtavuori 3N37*²<<locked>>76%19,798 psi58%984 fps86.2%
Vihtavuori N310²<<locked>>60%26,121 psi77%945 fps100%
Vihtavuori N320²<<locked>>60%17,187 psi50%883 fps100%
Vihtavuori N32C Tin Star²<<locked>>60%10,791 psi32%702 fps100%
Vihtavuori N330²<<locked>>60%14,721 psi43%866 fps97.3%
Vihtavuori N340*²<<locked>>60%14,431 psi42%837 fps89.2%
Vihtavuori N350*<<locked>>80%19,638 psi58%978 fps86.4%
Winchester 231²<<locked>>60%22,597 psi66%981 fps99.9%
Winchester 572*²<<locked>>60%26,194 psi77%1089 fps89.6%
Winchester AutoComp *²<<locked>>60%14,359 psi42%830 fps94.1%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 61 powders for 9 mm Para loaded with the .356 | 123gr | LOS FP. SNPE Vectan SP 2 delivers the highest muzzle velocity at 1,204 fps; across all powders the maximum-charge window runs from 735 fps to 1,204 fps. Alliant Herco gives the best case fill at 100 %, and 39 of the 61 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (235 MPa), the top charges use 33–90 %, 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. Alliant UNIQUE, ReloadSwiss RS 20, Somchem MS200 rank at the top here: for 9 mm Para with the .356 | 123gr | LOS FP they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate No. 5, Hodgdon HS-6, Hodgdon Longshot 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.

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