CARTRIDGE RIM FIRE .22" BALL
GENERAL :
The cartridges are of rimmed type. The complete cartridge consists of a cartridge case with rimfire composition, propellant charge and bullet. The rimfire makes thus a cartridge without a percussion cap. It is rimmed out to hold the initiatory composition. The striker of the rimfire rifle is placed eccentric to the axis of the barrel, so that when the rifle is fired, it pinches the rim and thus fires the cartridge. The bullet is made of lead antimony alloy and is unjacketed. The bullet is round nosed and formed with three circumferential grooves.
 
PHYSICAL CHARACTERISTICS :
Total length of Ammunition 25 mm (approx.)
Total mass 3.54 g
Mass of bullet 2.60 g (approx.)
Mass of Initiatory composition 26 to 29 mg
 
PERFORMANCE CHARACTERISTICS :
Velocity at 9 m 305 ± 23 m/s
Mean Figure of Merit at 23 m 95% within 19 mm circle dia.
 
QUALITY :
Various strict quality checks are adopted during manufacture. All the components are proved and inspected separately in empty stages before they are taken for filling/Assembly. Functional proof is carried out in association with Services Quality Assurance Organisation.
 
SHELF LIFE :

The shelf life of the Ammunition is 18 years

 
PACKING :
100 cartridges are packed in one Carton ASA No. 48 MK -1 and 4 such Cartons in one polythene bag and 11 polythene bags are packed in one Case Wood Packing 6A.
 
STOWAGE DIMENSIONS :

Package dimensions

398 mm X 233.5 mm X 211.5 mm
Gross Weight 20 Kgs (approx.)
 
HAZARD CLASSIFICATION :
Compatibility group S
Hazard Division 1.4
Fire fighting classification 4
 
0.22" RIM FIRE AMMUNITION
 
Type of Ammunition Velocity At 9 Metres Accuracy
    Mean figure of merit at 25 yds (23 m) Distance between two distant shots in a target of 5 rounds at 50 Metres
22 " RF Short 925 ± 50 ft./Sec (282 ± 15.2 m/Sec) Min. 95% with in ¾" dia (19 mm) circle  
.22 " RF Long 1000 ± 75 ft./Sec (305 ± 23 m/Sec) Min. 95% with in ¾" dia (19 mm) circle  
.22 " RF Tracer 1000 ± 75 ft./Sec (305 ± 23 m/Sec) Min. 95% with in 1 ½" dia (38 mm) Circle  
.22 " RF for Precision Shooting 1050 ± 16.4 ft./Sec (320 ± 5 m/Sec) Min 1" (2.5 cm)
 
Contact :

Marketing & Export Division
Ordnance Factory Board
Ayudh Bhawan
Government of India
Ministry of Defence
10A, S. K. Bose Road, Kolkata – 700 001, India.

Tel: 0091-33-2248 2103 / 2248 5077-80
Fax : 0091-33-2248 1748/2210 8235
Mail : ofbtrade@dataone.in
http://www.ofb.gov.in