Since the KFS is already building 90mm rounds of various types for the 90mm Cockerill gun on their fleets of V-300s
United States 90-mm Recoilless Rifle M67
SYSTEM
Alternative Designations: INA
Date of Introduction: Late 1940s
Proliferation: At least 11 countries
Description:
Crew: 3 (see Note)
Caliber (mm): 90
Weight (empty) (kg): 16.4
Length (mm): 1.35
Height (ground-mounted) (mm): 432
Mount: Rear bipod and forward monopod
Feed: Manual
Rate of Fire (rd/min):
Maximum: 1 each 6 seconds, not to exceed 5 rounds
Sustained: 1
Fire From Inside Building: No
SIGHTS
Name: M103
Type: Optical, (graduated in 50 m intervals up to 400 m, every
100 m up to 800 m)
Magnification: x3
Field of View (°): 10
Location: Left center
VARIANTS (INA)
AMMUNITION
Name: INA
Type: HE
Range (m):
Effective: 400
Weight (kg): INA
Name: M371E1
Type: HEAT
Range (m):
Aimed: 800
Effective: 420
Penetration:
Armor (mm CE): 350
(E-factor 1539)
Filler: Comp B 1.72 lbs
(DPW 1819)
Weight (kg): 4.2
Fuze: Point Detonating
Muzzle Velocity (m/s): 213
Name: XM590E1
Type: APERS Canister (antipersonnel)
Fill: 2,400 eight-grain flechettes
Range (m):
Effective: 200
Weight (kg): 3.08
Muzzle Velocity (m/s): 381
Name: M371 Training practice
Type: Target Practice
Range (m): Ballistically identical to the HEAT M371E1
Weight (kg): 3.08
Muzzle Velocity (m/s): 381
NOTES
The M67 90-mm recoilless rifle is a lightweight, portable, direct-fire only, crew-served antitank weapon. It is designed to be fired primarily from the ground using the bipod and monopod, but it may be fired from the shoulder. It is an air-cooled, breech-loaded, single-shot rifle that fires fixed ammunition. Although intended primarily for use as an antitank weapon, the M67 can be used against secondary targets such as gun emplacements and bunkers. It is also very effective in an anti-personnel role. Although no longer produced in the US, the M67 is still in production by South Korea.
The crew consists of a gunner, assistant gunner, and ammo bearer. The M67 can be operated with a crew of only two; however, the third crew member (ammo bearer) is considered necessary for efficient operations. In the absence of an individual to perform the duties assigned to the ammo bearer, the gunner (crew member 1) lays and fires the 90-mm rifle and is the crew leader. He carries the M67 and a pistol. The loader (crew member 2) is responsible for loading the rifle and acts as the gunner when required. He secures ammunition and checks the clearance of the backblast area prior to firing. He carries a pistol, spare parts, cleaning materiel, and 3 rounds of 90-mm. The ammunition bearer (crew member 3) is responsible for securing ammunition and providing security for the recoilless rifle position. He carries an assault rifle and 4 rounds of 90-mm.