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"DEWAT" 1942 Inglis/Browning .303

DEWAT (Deactivated War Trophy)

AIRCRAFT TYPE: Forward facing fixed design / Fash suppressor / Commonwealth 24 slotted barrel shroud.

Details of the 7.7 mm (0.303 in) Browning

The Browning was belt-fed and initially intended for fixed fighter installations
(although later adapted for use in turrets).

This example is stamped Inglis 1942 with its number and Mark 11 designation.
Mk11* guns were fitted with the BSA modified unit.

In 1940 BSA redesigned the muzzle attachment by adding cooling fins and chromium-plating the bore of the unit.
This modification allowed the gun to fire 300 more rounds without fouling.
After the troubles were rectified, production at BSA, Vicker-Armstrongs and sub-contractors kept up
with the demands of the Service (one Hurricane needed 16 guns).

The Browning was a recoil-operated gun with safety features which ensured near trouble-free operation.
The gun was fired when the rear sear was depressed. This was done by hand, or by pneumatic, hydraulic or
electrical solenoid actuation, depending on the installation. With sufficient maintenance, malfunctions were
The most usual stoppage was caused by rogue ammuntion or badly made-up belts, though the links would also
sometimes jam in the ejection outlet. Turret gunners could clear stoppages with a hooked tool kept handy in
the turret, and gunners also kept a looped wire or hooked metal cocking tool to clear the gun.
Stoppages were reduced after special belt-making machines were introduced.

Very cold conditions could also lead to problems. Heaters were provided in fighter gun bays, but oil spillage
in some power turrets made heaters a safety hazard. Anti-freeze oil helped, and one Bomber Group fixed a
paper seal over the cartridge ejection slot to stop the fierce draught which could enter the aperture.

The 'fire and safe' unit mounted on the side of the gun body was operated by a pneumatic actuator on the
same pressure line as the sear release unit on fighter aircraft. Turret guns were fired by hydraulic units or
electrical solenoids controlled by triggers or push buttons on the turret control handle.
The guns were made safe by pressing a release pin at the back of the fire and safe unit.

Browning Gun Production

A total of 460,000 complete Brownings were manufactured in the UK with spares for another 100,000.
Most of these were manufactured by BSA but an extensive sub-contract scheme was set up in 1941,
BSA supplying key personnel and supervising the work.
Production contracts were competed by the end of 1944, and in 1945 the lines were closed down.

Calibre: 7.7 mm (0.303 in)
Action: Recoil
Cyclic rate: 1,150 rpm
Weight: 9.9 kg (21 lb 14 oz)
Muzzle velocity: 811 m /sec (2,660 ft/sec)
Ammunition feed: Metal links
Cooling: Air
Rifling: Five grooves, left-hand twist, 1 turn/10 calibres
Length: 1,130 mm (3ft 8 in)
Weight of Bullet (Mk VIII): 11.34 grams (0.4 oz)
Maximum Range: 914 m (3,000 yds)

  • ITEM:BAM145
  • Shipping Weight: 12kgs
  • 0 Units in Stock
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