9mm Action Express
Historical Notes:
This is a 1988 innovation by Evan Whildin, who was Vice President of Action
Arms, LTD. at the time. The 9mm Action Express (9mm AE) is the 41
Action Express case necked down to 9mm. It retains the 41
AE rebated rim which is the same diameter as the standard 9mm
Luger. The advantage of this in the 9mm AE is that the cartridge offers a
larger case that can be used in firearms originally designed for the 9mm Luger
without the necessity of changing the bolt or breech face. This will allow a
number of 41 AE semi auto pistols and carbines to be
changed to the 9mm version by the installation of kits made available for
specific weapons.
General Comments:
The 9mm AE has been tested in the Uzi semi-auto pistol and in specially altered
1911 Colt pistols. As a commercial round, it appeared chambered in the Action
Arms TZ-75S88. It is sort of a super 9mm and as such is more powerful than the 38
Colt Super Auto. It has an advantage over the 9mm Winchester Magnum since it
is shorter and most 9mm pistols can be adapted to it. Tests in a 10 inch
pressure barrel gave muzzle velocities with a 95 grain bullet of 1880 fps at
31,760 CUP and 1903 fps with a 100 grain bullet at 34,880 CUP. These pressures
are a bit on the high side for many semi-auto pistols. On the other hand, these
are top loads and can be reduced and still maintain impressive velocities. A 124
grain bullet was measured at 1590 fps and 28,550 CUP, a load that could be
digested by most 9mm autos. The 9mm AE is a potentially good self defense and
field cartridge. Of course, converted auto pistols are not likely to have 10
inch barrels, 5 inches being more normal. However, safe loads around 1500 fps
with a 124 grain bullet have been tested in converted Colt 1911 autos with 5
inch barrels. This beats the 38 Colt Super Auto and
its 130 grain bullet at 1275 fps.
Source: Cartridges of the World
| 9mm Action Express Reloading Data | ||||
|---|---|---|---|---|
| Bullet (grs.) | Powder / (grs.) | MV | ME | Source |
| 115 JHP | No. 9 / 16.1 | 1825 | 850 | Action Arms |
| 124 JHP | IMR 4227 / 13.3 | 1225 | 415 | Action Arms |
| 124 JHP | H-110 / 16.5 | 1530 | 645 | Action Arms |
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