German Projectiles - 7.92mm to 30mm Projectiles

German Projectiles





German Projectiles



German Cartridges, S.A.A., 7.92mm

 German 13mm Solothurn

German 15mm Mauser

German 20mm Mauser & Oerlikon Ammunition

H.E Projectile for Tapered Bore Gun, 28.2mm

German Designation: Sprgr. Patr. Pz. B41 (Sprenggranate Patrone Panzerbuchse 41)

Employment: s. Pz B 41 (schweres Panzerbuchse 41)


Dimensions

Overall length (complete round): 8.5 inches
Overall length (projectile): 2.531 inches
Diameter at bourrelet: 1.129 inches
Diameter of body midway: 0.752 inches
Diameter of projectile base: 1.128 inches
Total weight of projectile: 3.1 ounces
 Total weight of bursting charge: 1.8 ounces

Type of filling: PETN/Wax
Tracer present

Overall length (cartridge case): 7.375 inches
Diameter at case neck: 1.175 inches
Diameter at case shoulder: 1.567 inches
Depth of extracting groove: 1.885 inches
Weight of propellant: 5.3 ounces
Type of propellant: Nz. RP (Tubular Nitrocellulose)

Fuze: AZ 5072

Markings: Black overall








A.P. Shot with Core for Tapered Bore Gun, 28.2mm

German Designation: Pzgr. Patr. Pz. B41 (Panzergranate Patrone Panzerbuchse 41)

Employment: s. Pz B 41 (schweres Panzerbuchse 41)


Dimensions

Overall length (complete round): 8.5 inches
Overall length (projectile): 2.531 inches
Diameter at bourrelet: 1.129 inches
Diameter of body midway: 0.752 inches
Diameter of projectile base: 1.128 inches
Total weight of projectile: 4.6 ounces
Length of tungsten carbide core: 1.593 inches
Diameter of tungsten carbide core: 0.43 inches

Type of filling: Tungsten Carbide Core
Tracer present

Overall length (cartridge case): 7.375 inches
Diameter at case neck: 1.175 inches
Diameter at case shoulder: 1.567 inches
Depth of extracting groove: 1.885 inches
Weight of propellant: 5.4 ounces
Type of propellant: Tubular Nitrocellulose

Fuze: None

Markings: Black overall with red band









Inert-Loaded Projectile for Aircraft Cannon, 30mm

German Designation: 3cm

Employment: Mk 103 or Mk 101


Dimensions

Overall length (complete round): 11.719 inches
Overall length w/ fuze (projectile): 5.25 inches
Diameter at bourrelet: 1.187 inches
Width of rotating band: 0.312 inches
Diameter of projectile base: 1.125 inches
Distance from base to band: 0.781 inches

Type of filling: Filled with inert Bituminous composition
Tracer present

Overall length (cartridge case): 7.25 inches
Diameter at case neck: 1.25 inches
Diameter at case shoulder: 1.375 inches
Diameter of rim: 1.5 inches
Type of propellant: Smokeless powder

Fuze: Dummy

Markings: Grey overall, yellow band above rotating band;
Two cannelures below rotating band;
"Wb K2 41" on cartridge case.










A.P. Projectile with Core for Aircraft Cannon, 30mm

German Designation: 3cm Pzgr. 40 (Panzergranate 40)

Employment: Mk 103 Rheinmetall-Borsig


Dimensions

Overall length (complete round): 11.625 inches
Total weight of complete round: 1 pound, 12.5 ounces
Overall length (projectile): 5 inches
Diameter at bourrelet: 1.187 inches
Width of bimetallic rotating band: 0.312 inches
Diameter of projectile base: 1.156 inches
Width of bourrelet: 0.375 inches
Distance from base to band: 0.625 inches
Weight of projectile: 13.5 ounces

Type of filling: Tungsten Carbide Core

Overall length (cartridge case): 7.25 inches
Diameter at case neck: 1.25 inches
Diameter at case shoulder: 1.375 inches
Depth of extracting groove: 1.5 inches
Type of propellant: Smokeless powder


Markings: Painted Black with white tip 1.75 inches long;
"UNT 1c" and date stencilled in white on projectile
"Wb K2 41" on cartridge case.










H.E. Projectile for Aircraft Cannon, 30mm

German Designation: 3cm Sprgr (Sprenggranate)

Employment: Mk 103 Rheinmetall-Borsig


Dimensions

Overall length (complete round): 11.75 inches
Overall length (projectile): 5.375 inches
Diameter at bourrelet: 1.156 inches
Width of rotating band: 0.156 inches
Diameter of projectile base: 1.156 inches
Distance from base to band: 0.875 inches

No tracer present

Overall length (cartridge case): 7.25 inches
Diameter at case neck: 1.25 inches
Diameter at case shoulder: 1.375 inches
Depth of extracting groove: 1.5 inches
Type of propellant: Smokeless powder


Markings: Painted Yellow with white band above rotating band;
black band below screwed-in nose piece.
"Wb K2 41" on cartridge case.


Remarks: This projectile has a hollow recess at its base 0.5 inches in depth.
There is one cannelure below the rotating band.








H.E. Projectile with Tracer for Aircraft Cannon, 30mm

German Designation: 3cm Sprgr L'spur (Sprenggranate Leuchtspur)

Employment: Mk 103 Rheinmetall-Borsig


Dimensions

Overall length (complete round): 11.718 inches
Overall length (projectile): 5.25 inches
Diameter at bourrelet: 1.156 inches
Width of rotating band: 0.312 inches
Diameter of projectile base: 1.125 inches
Distance from base to band: 0.781 inches

Tracer present (Not self-destroying)

Overall length (cartridge case): 7.25 inches
Diameter at case neck: 1.25 inches
Diameter at case shoulder: 1.375 inches
Depth of extracting groove: 1.5 inches
Type of propellant: Smokeless powder

Fuze: AZ 1504

Markings: Painted Yellow; aluminum fuze.
"Wb K2 41" on cartridge case.


Remarks: Two cannelures below the rotating band.










A.P Projectile for Aircraft Cannon, 30mm

German Designation: 3cm Pzgr (Panzergranate)

Employment: Mk 103 Rheinmetall-Borsig


Dimensions

Overall length (complete round): 12.218 inches
Overall length w/ fuze (projectile): 5.656 inches
Overall length w/o fuze (projectile): 5.187 inches
Diameter at bourrelet: 1.187 inches
Width of rotating band: 0.25 inches
Diameter of projectile base: 1.156 inches
Distance from base to band: 0.687 inches

Type of filling: TNT
Tracer present

Overall length (cartridge case): 7.25 inches
Diameter at case neck: 1.25 inches
Diameter at case shoulder: 1.375 inches
Depth of extracting groove: 1.5 inches
Type of propellant: Smokeless powder

Fuze: Base fuze for 3cm Pzgr.

Markings: Painted Black with yellow band above bourrelet;
Red band above rotating band.


Remarks: Two cannelures below the rotating band.

Next Time: 37mm to 42.48mm Projectiles

Imperial Japanese Explosives - Land Mines and Grenades (Part 6)

Imperial Japanese Explosives

  

  

Explosive Food Cans
 

Length: 4 and 1/2 inches
Diameter: 3 and 3/8 inches
Explosive: RDX (78.3%); Mineral Oil (21.7%)
Weight of explosive: 1.37 pounds
   

Description: Three types of explosive food cans have been recovered, whose main difference lies in the spurious food labels which conceal the true nature of the can. 

The "tin of strawberries" is typical and consists of a standard No.2 can filled with high explosive.  The tin bears a cleverly counterfeited "Libby's Strawberries" label, which covers and conceals the threaded igniter pocket in the side of the can.  This label gives the weight of the can as 1 pound 4 ounces.  The interior of the can is lined with thick brown paper.  Two rectangular metal containers filled with heavy mineral oil are placed in the main filling on either side of the igniter pocket.

Two smaller 14-ounce cans labeled "Libby's Long Slices Fancy Pineapple" and "Del Monte Mixed Salad Vegetables," which are similar to the "Strawberry" can in all respects except size and label, have been recovered.

All the types of charges can be used either as sabotage devices or booby traps depending on the type of initiating system used.  One common initiator has a scratch type igniter, a safety fuse delay (about 1 minute), and a detonator.  Another consists of a brass sleeve containing a scratch type igniter, an integral short delay train, and a detonator.  The third type of igniter consists of a brass sleeve containing a friction pull igniter, and a detonator.  This last igniter has no delay and can be used only if the charge is placed as a booby trap.

Operation: The label of the can is removed or perforated to expose the igniter pocket into which the igniter is threaded.  The activation of the igniter sets off the delay, if present, which fires the detonator and the main charge.

  

Metal Incendiary Cylinders

Length: 6 and 3/4 inches
Diameter: 2 and 3/4 inches
Incendiary Mixture: Thermite
  

Description: These cylinders are constructed of a light unidentified metal.  They are filled with thermite and have an igniter located in the center of the top section.

Four types of cylinders have been recovered which differ as to type of casings and igniters.  One casing is a plain cylinder, while the other type has vents around the top to allow more rapid escape of the thermite.  Both casings can be fitted with either a friction pull igniter or a scratch type igniter.

Both igniters are of conventional design and both employ a delay element and a 5-gram first fire charge of antimony sulphide, aluminum, and potassium chlorate.  A circular piece of wood with rough sides is provided as a scratch block for the scratch type igniter.  The block is wrapped in waxed paper and taped to the top of the cylinders in which it is used.

Operation: Place the charge and initiate the igniter.  After the delay time has expired, the first fire charge and then the main incendiary charge are ignited in turn.

Incendiary Brick

Size: Same as standard building brick

Incendiary Mixture: Potassium chlorate, sulphur, ground coal, or sugar, iron fillings, and wax
  

Description: This device is a skillful imitation of a standard, glazed building brick to which it is comparable in size, weight, and appearance.  The brick is wax coated with paint to give it a realistic finish and so allow it to be carried about without detection.  There is no pocket for insertion of an igniter.

Operation: The incendiary brick is ignited in various ways, all of which are alike in principle.  One method is to pour sulphuric acid and glycerine into a thin rubber tube which is weakened at one point to allow the acid to burn through quickly.  When the acid burns through the tube, it drips onto a small amount of potassium permangenate which ignites the brick.

Incendiary Soap
  

Length: 4.17 inches
Width: 2.67 inches
Thickness: 1.45 inches
Weight: 14 ounces

Incendiary mixture:
-Barium Nitrate: 30.4%
-Paraffin: 19.4%
-Magnesium: 11.3%
-Aluminum: 11.1%
-Rosin: 10.9%
-Ferrosoferric Oxide: 9.1%
-Nitrocellulose: 4.4%
-Gritty Siliceous Material: 2.6%

Description: This incendiary bar is specifically designed to resemble a bar of "Ivory" soap.  The word "Ivory" is stamped on one side and "Proctor and Gamble" on the other.  The bar burns with an intense flame, but is easily extinguished by water.  It is difficult to ignite.

No method of ignition has been found, but it is probable that some type of ignition device is inserted into the recess in the side of the bar.

40mm Hollow-Charge Rifle Grenade

Overall length: 7.98 inches
Maximum diameter: 1.58 inches

Color: Black and grey

Total weight: 12.45 ounces
Filling: 50/50 RDX and TNT
Weight of filling: 3.81 ounces
  

Description:  This grenade is a copy of the German Gross Gewehr Panzergranate and is fired from a cup launcher attached to the standard 6.5mm rifle.

The body is cylindrical with a semiconical shaped head.  It is made in two parts threaded together and fitted with a ballistic cap and cone to give the hollow-charge effect.  The forward part contains the explosive charge cast around the cone.  The after part which is made of aluminum has a rifled collar near the base and contains the fuze and explosive train.
  
The fuze is held in by a base plate with a protruding spigot which is screwed into the base of the grenade.  The fuze is held in position by the spigot.  The needle firing pin is secured in a housing that has a four stirrup-like springs protruding from the side.  Around the housing is a setback spring held in by an arming sleeve which has two sets of grooves notched on the inner side. 

Holding the firing pin stationary is a coil clock spring which is held in by the arming sleeve.  There is also a creep spring between the firing pin and detonator.   The propelling charge consists of a special cartridge with a wooden bullet.
  

Operation: On firing, setback causes the arming sleeve to move down and it is held down by the stirrup springs which engage in the groove in the arming sleeve.  Centrifugal force then causes the clock spring to expand and the fuze is armed.  On impact the firing pin housing overcomes the creep spring and moves onto the flash cap setting off the detonator and booster.

30mm Hollow-Charge Rifle Grenade
  

Overall Length: 8 inches
Maximum Diameter: 1 and 5/8 inches

Color: Black and grey

Total Weight: 8.25 ounces
Filling: 50/50 RDX and TNT
Weight of Filling: 1.75 ounces

Description: The explosive head of the 30mm is of the same type construction as that of the 40mm, but on a smaller scale.  The spigots of the 30 and 40mm grenades are identical with the exception of the threads on their forward ends.  Both grenades use the same fuze.

Operation: The operation of the 30mm hollow-charge rifle grenade is identical to that of the 40mm size.





Model 3 Modification 1 Rifle Grenade
  

Overall Length: 8 inches
Maximum Diameter: 1 and 5/8 inches
Thickness of body wall: 1/8 inch
Length of body: 2 and 13/16 inches
Length of tail: 4 and 5/16 inches
Length of fuze: 1 and 3/16 inches

Color: Black

Filling (main charge): TNT
Weight of Filling: 3 ounces

Description:  This grenade is similar to the Type 99 Kiska grenade with a tail assembly added.  It is designed t be fired from the spigot type rifle grenade launcher.  The body and tail are painted black.

The grenade body is a smooth-surfaced, cylindrical cast steel tube.  It is threaded internally at the forward end to receive the cover plate.  There is a bored opening in the base of the grenade body.  A cylindrical solid steel plug, threaded on its after end to receive the tail assembly, is pressed into this hole.

The tail assembly consists of a stabilizer tube to which four fins are welded.  The tube is constructed of rolled sheet steel with a smooth weld down the joining seam.  Threads are pressed into the forward end to correspond with those on the base plug.  The four fins are of light metal.  The outer end of each fin is doubled back to provide a smooth exposed surface.  The inner edge is bent 90 degrees and provides a surface for spot welding the fin to the tube.  The fins are positioned at 90 degree intervals around the circumference of the tube.

The fuze body differs from the Type 91 and Type 97 hand grenade fuzes only in having an aluminum striker block into which is screwed a steel striker.  A brass shear wire through the block holds the striker away from the percussion cap.

The explosive train of the grenade consists of a percussion cap, black powder relay, cyclonite primer, tetryl booster and a main charge of cast TNT.  The cyclonite is enclosed in a brass container, the tetryl in a cardboard cylinder.  Directly under the tetryl booster there is a setback buffer consisting of a felt washer and a jelly-like pellet.


Operation: Prior to firing the grenade from the rifle the safety fork is withdrawn.  The fuze is fully armed.  On impact the brass wire through the striker block is sheared and the steel striker is driven into the percussion cap.  The resultant flash ignites the black powder relay.

The fuze is instantaneous and cannot be substituted as a fuze for hand grenades.

Remarks: A translation of the labels attached to the stabilizer tube gives the following information: "This grenade can be used on rifles Type 38 and Type 99.  The wooden bullet for Type 38 and Type 99 is to be used."  These two rifles are the standard combat weapons for Japanese troops.

A translation of the tag attached to the safety fork gives the following precautionary measures: "Do not remove fork until ready to fire." and "Do not drop or otherwise strike on the nose."



Smoke Rifle Grenade

Overall Length: 8 and 1/2 inches
Maximum Diameter:
-Body: 2 inches
-Fins: 2 and 9/16 inches

Color: Silver

Total weight: 1.29 pounds
Filling:
-Hexachlorethane: 56.2%
-Zinc: 27.6%
-Zinc chloride: 2.9%
-Zinc oxide: 13.4%

(The above numbers total 100.1%.  I don't know why.)

Description:  This grenade is used with a special adapter which fits over the end of the rifle barrel.  It is painted silver and thoroughly waterproofed with coats of heavy lacquer and paraffin.

The nose is of No.23 gage B. and X. tin plate with rolled threads to fit those on the body of the grenade.  Soft iron wire is wrapped in the thread groove and soldered in place, presumably to aid in sealing the joint.  The body proper is rolled from No.23 gage B. and X. tin plate and is soldered along one longitudinal seam.  Rolled threads are provided at each end to fit the threads on the nose and base.

The base is stamped from No.18 gage B. and S. sheet steel and is screwed onto the body by means of rolled thread.  Soft iron wire is wrapped and soldered into these thread grooves.  The base is partially filled with plastic which has a threaded hole half filled with solder.  The bottom plate is held in place by a small screw imbedded in the solder.  The igniter pellet is encased in a thin walled brass container which is supported by tin plate screwed and soldered onto the body.

The four smoke ports are placed at 90 degree intervals around the base and are covered with light sheet metal discs which are held in place by waterproof cement covered with paraffin.  There are three flash ports, spaced at 120 degree intervals, in the bottom of the base.

The grenade tube is made of No.18 gage B. and S. seamless steel tubing and the upper end is threaded to fit the small end of the base.  The threaded joint is wrapped with adhesive tape.  The tube is sealed with a paraffin impregnated cardboard disc attached to 9 inches of heavy twine.  The four fins are soldered to, and are equally spaced around, the tube and are of No.24 B. and X. tin plate.

The motive force and primary ignition are furnished by a standard .256 caliber Japanese rifle cartridge loaded with 1.927 grams of powder and fitted with a wood pellet.  This cartridge is wrapped in paper and stored in the grenade tube.

Operation: The rifle cartridge is removed from the grenade tube and inserted into the rifle.  The grenade is placed over the spigot adapter.  When the rifle is fired, the gases from the cartridge propel the grenade and also pass through the flash ports to initiate the igniter pellet which in turn ignites the smoke mixture.  Smoke is then emitted through the emission holes.








Small Incendiary Rifle Grenade

Overall Length: 10 inches
Maximum Diameter: 1 and 7/8 inches

Color: Grey with purple body band

Total weight: 1.01 pounds
Filling: White Phosphorus
Weight of Filling: 42 ounces (Manual states 42 pounds!)
Delay: 4-5 seconds

Description:  This grenade is designed to be launched from a spigot type rifle grenade launcher on the Type 38 or Type 99 Japanese rifle, using a cartridge having a wooden bullet.

The grenade is of light, seamless, steel construction and has an incendiary filling of white phosphorus.  The nose piece is threaded at its forward end to receive the fuze.  A thin, metal well extends into the filler and is soldered around the fuze pocket to give an air tight seal.  This well contains the detonator and auxiliary detonator of the fuze, which serves as the bursting charge for the grenade.

The barrel of the grenade is threaded at its forward end to take the nose piece, and at its after end to receive the hemispherical end plate internally and the base piece externally.  The end plate has a small hole in its center.  The base piece is threaded at one end to screw onto the barrel and at the other end to screw into the stabilizer tube.  A bakelite cushion is cast into the base piece to fit the hemispherical end plate.

The stabilizer consists of a cylindrical tube which threads onto the base piece.  Four fins are welded to the after section of this tube at 90 degree intervals.  The rolled threads, joining the barrel and base piece and base piece and stabilizer, are reinforced by wrapping and soldering soft iron wire into the thread grooves.

The fuze used in this grenade is the same as that used in the Type 97 hand grenade.

Operation:  After the grenade has been placed over the spigot adapter of a rifle loaded with a cartridge having a wooden bullet, the safety pin is removed from the grenade.  When the rifle is fired, the gases from the cartridge propel the grenade, and the force of setback initiates the grenade fuze.  After a short delay, the fuze detonates, rupturing the case of the grenade.

Next Time: Italian and French Explosives

Imperial Japanese Navy Ammunition - 30mm Projectiles

 

 

 

Imperial Japanese Navy Ammunition

 

 

 

 

30mm Ammunition

 

 

 

 

Two 30mm aircraft cannon, the Type 2 and the Type 5, were in use by the Japanese.  These guns are of Oerlikon design and use similar ammunition.  The Type 5 gun uses a longer case and a slightly heavier projectile than the Type 2.

 

 

Case:  The case for the Type 2 gun is of typical Oerlikon design.  It is a comparatively short brass reduced-rim case slightly necked.

 

The case for the Type 5 gun is longer, has a more pronounced neck, and is of the rimless type.

 

 

Length of Case 

Type 2: 3.58 inches

Type 5: 4.81 inches

 

 

Projectiles:  Like the 20mm ammunition, the type of projectile is indicated by painting the projectile body a solid color.  However, some of the Type 5 projectiles were unpainted except for a narrow band behind the nose fuze.

 

The following dimensions are common to all projectiles:

Type 2 ----- Type 5

Diameter at bourrelet: 1.18 in ----- 1.18                                         

Width of rotating band: 0.24 in ----- 0.31 in                                       

 

 

  

30mm Type 5 High-Explosive Projectile

 

 

Fuzing: Rotor type fuze

 

Lenght of projectile (without fuze): 3.53 inches

Lenght of complete round: 8.31 inches

 

Filling: Pentolite

 

Color and Markings:  Maroon overall

 

Remarks: The pentolite is in a precast block surrounded by cardboard.

 

 

 

30mm Type 2 and Type 5 High-Explosive Incendiary Projectiles

 

 

Fuzing: Rotor type fuze

 

Length of projectile (without fuze):

-Type 2: 2.83 inches

-Type 5: 3.53 inches

 

Length of assembled round (fuzed):

-Type 2: 6.57 inches

-Type 5: 8.31 inches

 

Filling: Pentolite and White Phosphorus

 

Weight of filling (Type 2):

-Pentolite: 3.56 grams

-White Phosphorus: 19.94 grams

 

Color and Markings: Greenish-Yellow overall.

The Type 5 projectile is sometimes unpainted except for a greenish-yellow band at the nose.

 

Remarks:  The one-piece projectile contains only one cavity.  The H.E. is surrounded by a cardboard below which is contained the W.P. in a metal canister.

 

 

 
 

Type 5 30mm High-Explosive Tracer Projectile

 

 

Fuzing: Rotor type fuze

 

Length of projkectile (without fuze): 3.53 inches

Length of complete round: 8.31 inches

 

Filling: Pentolite

 

Color and Markings:  Red overall, or a red band at the nose.

 

Remarks:  The body of the projectile contains two cavities separated by a steel septum.  The upper cavity contains the H.E. filling, while the lower contains the tracer.

 

 

 
 

Type 5 30mm Tracer Projectile

 

 

Fuzing: Nose Plug

 

Length of projectile (without fuze): 3.53 inches

Length of complete round: 8.31 inches

 

Filling: None

 

Color and Markings: Red overall, or a red band at the nose

 

 

 

 
 

Type 2 and Type 5 30mm Practice Projectile

 

 

Fuzing: Dummy fuze

 

Length of projectile (without fuze):

-Type 2: 2.83 inches

-Type 5: 3.53 inches

 

Length of assembled round (fuzed):

-Type 2: 6.57 inches

-Type 5: 8.28 inches

 

Filling: Blind loaded

 

Color and Markings:

-Type 2: Black overall with a red dummy fuze

-Type 5: Not painted

 

Remarks:  The projectile body and case are the same in appearance as the H.E.I. round.  This is used as the first round in the magazine, to clear the gun bore.

 

 

40mm Armor-Piercing Projectile

Weight of complete round (without fuze): 1.17kg
Weight of projectile, filled (without fuze): 0.78kg
Weight of filling: 0.023kg
Filling: Cast TNT

Diameter at bourrelet: 1.57 inches
Length of projectile (without fuze): 5.24 inches
Length of assembled round: 10.33 inches
Length of propellant case: 6.18 inches
Propellant: Cylindrical lengths of smokeless powder, 95.9g
Width of rotating band: 0.63 inch
Diameter of base of propellant case: 1.89 inches

 Fuzing: Small A/P base fuze

Color and Markings: White with a green tip

Remarks: This round indicates use of the 40mm Vickers-Armstrong as a dual-purpose gun.

 


40mm High-Explosive Anti-Aircraft Projectile

Weight of complete round (without fuze): 1.18kg
Weight of projectile, filled (without fuze): 0.79kg
Weight of filling: 0.07kg
Filling: Cast TNT

Diameter at bourrelet: 1.57 inches
Length of projectile (without fuze): 5.01 inches
Length of assembled round: 10.4 inches
Length of propellant case: 6.18 inches
Propellant: Cylindrical lengths of smokeless powder, 95.9g
Width of rotating band: 0.63 inch
Diameter of base of propellant case: 1.89 inches

Fuzing: A.A. powder time fuze

Color and Markings: Maroon with 12mm green band around ogive

Remarks: This round was evidently designed only for anti-aircraft work, having no impact or tracer element.  It is used in the Navy's Vickers-Armstrong guns, which are belt-fed with automatic fuze cutters attached.




40mm Tracer Projectile

Weight of complete round (with nose cap): 1.28kg
Weight of projectile, filled (with tracer and nose cap): 0.9kg
Weight of filling: 0.07kg
Filling: None

Diameter at bourrelet: 1.57 inches
Length of projectile (with nose cap): 6.61 inches
Length of assembled round (with nose cap): 11.3 inches
Length of propellant case: 6.18 inches
Propellant: Cylindrical lengths of smokeless powder, 95.9g
Width of rotating band: 0.63 inch
Diameter of base of propellant case: 1.89 inches

Fuzing: None

Color and Markings: Orange overall

Remarks: This round is similar in shape to the A.A. type.  The nose, of solid construction with two large wrench flats, screws into the projectile body just before the bourrelet with right-hand threads.  The inside is lacquered.  The tracer element is screwed into the base with left-hand threads.  It is used in the Vickers-Armstrong guns.





5cm (47mm) Complete Round and Common Projectile

 
Assembled round:
-Weight of complete round: 3.2 lbs
-Length of complete round: 9.25 inches

Projectile:
-Weight of filled projectile (with fuze): 2.4 lbs
-Weight of projectile (empty): 2.1 lbs

Dimensions:
-Length of projectile (without fuze): 5.31 inches
-Diameter at bourrelet: 1.84 inches
-Distance from base to rotating band: 1.25 inches
Width of rotating band: 1.69 inches

Filling: Loose granular black powder (50 grams)

Fuzing: Hotchkiss patent fuze screwed (R.H.) into base; a simple setback arming base fuze presumably of British manufacture.  The base of the fuze is stamped "Hotchkiss Patent DOC"
Weight of fuze: 2 oz

Case:
-Length: 5.19 inches
-Diameter at base: 2.38 inches
-Material: Brass (recovered); Steel (documentary)
-Weight (empty): No Data

The case is crimped into a groove in the base of the projectile by several short crimps.

Propellant: 5 C2 (Type 2 Year propellant) weighing 2.4 oz unperforated cylindrical sticks, approximately 0.5mm by 25.4mm, amber-coloured double-base powder.

The propellant sticks are enclosed in a compartmented bag of heavy brownish silk.

Primer: Small flush type (designation unknown)

Used in: Short 5cm gun
 
This gun, mounted on wooden-spoked wheels as a field piece, corresponds to old U.S. "landing guns" and is probably a copy of an obsolete British gun.  The breech block is the vertical sliding type.



 

Next Time: 80mm Projectiles