Report on 9mm Largo ammunition:

The ammunition was tested on March 26, 2000 in Harmony, ME, at Surplus International LLC’s facility. Information was gathered by Dan Shea, Technical Editor of Small Arms Review. Chronograph was a DillonMillenium.

9mm Largo Manufactured in Spain by Empressa Nacional Santa Barbara.

Case Length….…. 9 x 23mm
Bullet weight……. 127 gr.
Cartridge weight.. 200 gr.
Powder type…….. flake (Military)
Powder weight….. 6.0 gr.

All cartridge’s tested out satisfactory. Test firearms were: 1921 Astra 5.5"bbl, Star Super 5.25" bbl, Destroyer Carbine 17" bbl, and Star Z-45 submachinegun 7.75" bbl.

1962 dated boxes: included some 1961 dated cartridge cases, but were primarily 1962.This ammunition used corrosive Berdan primers and will require cleaning of the firearmsafter use with a cleaner that counteracts the corrosive chemicals. Packaged 25 per cdbdbox, 1000 rds per sealed steel can in wood cs.

1969 dated boxes: cartridges are 1966 to69 dated, and were non-corrosive, using Berdanprimers. This ammunition was the most consistent on the chronograph, and the mostaccurate. Packaged 25 per cdbd box, 1000 rds per sealed steel can in wood cs.

1977 dated boxes: cartridge cases are mid 1970s dated, mostly 1977. The boxes aremarked "No corrosivo, no erosivo" and the cartridges are non corrosive, Berdanprimed. Packaged 25 per cdbd box, 2000 rds per sealed steel can inwood cs.

 

AmmoDate         Firearm         mean avg fps         5 shot Hi/low         spread

1962                1921 Astra         1110 fps                1097-1128 fps      31 fps
1962                Star Super         1084 fps                1055-1134 fps      79 fps
1962                Destroyer           1249 fps                1238-1267 fps      29 fps
1962                Z-45 SMG          1137 fps               1103-1172 fps      69 fps

1969                1921 Astra          1167 fps                1153-1188 fps     35 fps
1969                Star Super           1170 fps                1163-1181 fps     18 fps
1969                Destroyer            1243 fps                1231-1293 fps      62 fps
1969                Z-45 SMG          1199 fps                1177-1224 fps       47 fps

1977                1921 Astra          1133 fps                1105-1161 fps       56 fps
1977                Star Super          1147 fps                1134-1162 fps       28 fps
1977                Destroyer             1240 fps               1198-1270 fps       72 fps
1977                Z-45 SMG           1167 fps                1139-1197 fps       58 fps

Contact Surplus International LLC for information on purchasing this ammunition.