9mm Largo Ammunition Test

The ammunition was tested on March 26, 2000 in Harmony, ME, at Surplus International LLC's facility. Information was gathered by Dan Shea. Chronograph was a Dillon Millenium.

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 cartridges tested out satisfactory. Test firearms were: 1921 Astra 5.5" bbl, Star Super 5.25" bbl, Destroyer Carbine 17" bbl, and Star Z-45 submachine gun 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 firearms after use with a cleaner that counteracts the corrosive chemicals. Packaged 25 per cdbd box, 1000 rds per sealed can in wood cs.

Ammo Date	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