7mm Penna

The 7mm Penna also known as the 7×23mm is a handgun cartridge designed by Leonardo Penna for law enforcement applications.[1][2] The cartridge utilises a novel lightweight, pointed projectile made from brass travelling at high velocity with the intention of giving it limited armor-piercing capabilities and greater stopping power.[1]

7mm Penna
Type	Handgun
Place of origin	Italy
Production history
Designer	Leonardo Penna
Designed	2004 (C.I.P.)
Specifications
Parent case	FN 5.7×28mm
Case type	Rimless, straight
Bullet diameter	7.04 mm (0.277 in)
Neck diameter	7.9 mm (0.31 in)
Base diameter	7.95 mm (0.313 in)
Rim diameter	7.95 mm (0.313 in)
Rim thickness	1.2 mm (0.047 in)
Case length	23 mm (0.91 in)
Overall length	34.5 mm (1.36 in)
Primer type	small pistol
Maximum pressure (C.I.P.)	250 MPa (36,000 psi)C.I.P.
Ballistic performance
Bullet mass/type Velocity Energy 4,5 405 m/s (1,330 ft/s) 3,2 480 m/s (1,600 ft/s)

There has been rumours of Fiocchi of Italy developing this cartridge for the sport of competitive shooting especially for IPSC competitions. STI chambered a few of their Nemesis line of 1911 clones for this cartridge but ceased shortly thereafter due to very little demand for such a handgun in this chambering.

This cartridge family also includes a 7x28mmR rimmed cartridge designed for use in revolvers and longer cartridges for use in carbines and rifles.[3]

References

1. Leonardo, Penna. "7penna ammunition". Q.S. Progetto Meccanica s.a.s. Retrieved 9 July 2013.
2. "Tab IV - Pistol and revolver cartridges". C.I.P. Archived from the original on 15 October 2013. Retrieved 9 July 2013.
3. "Forum post". thefiringline. thefiringline. Retrieved 9 July 2013.