User:Vjaarland/Sandbox4

6.5×45mm MASSOR
Type	Rifle
Place of origin	Valduvia
Service history
In service	1956–present
Used by	MASSOR and others
Wars	Burland conflict Miersan War
Production history
Designer	Valduvian Workers' Army
Designed	1953
Produced	1954–present
Specifications
Case type	Rimless, bottleneck
Bullet diameter	6.71 mm (0.264 in)
Neck diameter	7.44 mm (0.293 in)
Shoulder diameter	10.90 mm (0.429 in)
Base diameter	11.30 mm (0.445 in)
Rim diameter	11.30 mm (0.445 in)
Rim thickness	1.50 mm (0.059 in)
Case length	45.00 mm (1.772 in)
Overall length	68.00 mm (2.677 in)
Case capacity	2.79 cm3 (43.1 gr H2O)
Rifling twist	200 mm
Primer type	Large rifle
Maximum pressure	430.00 MPa (62,366 psi)
Ballistic performance
Bullet mass/type Velocity Energy 8.0 g (123 gr) 840 m/s (2,800 ft/s) 2,935 J (2,165 ft⋅lbf)
Test barrel length: 610 mm

The 6.5×45mm MASSOR, also known as 6.5×45mm Valduvian or simply 6.5×45mm, is a rimless bottlenecked intermediate rifle cartridge developed in Valduvia during the 1950s. It has been the standard service rifle chambering for the Valduvian Workers' Army since 1956, and was originally designed to be used in the TBA assault rifle. The cartridge was adopted as the standard for MASSOR upon the organization's establishment in 1999, and now enjoys widespread use among the armed forces of its member states. It is commonly used in the Lielstraupe TŠ-90 and TBA assault rifles, as well as the TBA light machine gun.

6.5×45mm was developed by the Valduvian Workers' Army after the Valduvian-Weranian War, ...