12.7mm NATO .50 BMG Rounds - Info Required

[EagleEyes]

Here are a few more .50 BMG rounds I’ve just added to my collection.

I was wondering if anybody could fill in the missing information: Manufacturer, Country, Projectile, Usage, Weapon etc.?

Is there a good book or website that could give me this information?

Round 1
Headstamp: CBC 08 (+) L8A1
Projectile ID: Copper with Steel Core
Projectile: BALL L8A1
Manufacturer: Brasileira de Cartuchos in Sao Paulo, Brazil on contract for the MOD
Date: 2008

Round 2
Headstamp: AD 05 .50
Projectile ID: Blue Tipped, Copper with Steel Core
Projectile: I - INCENDURY
Manufacturer: MAST Technologies of Boulder City USA, made for Abu Dhabi
Date: 2005

Round 3
Headstamp: CBC 03 .50
Projectile ID: Black Tipped, Copper with Steel Core
Projectile: AP – ARMOUR PIERCING
Manufacturer: Brasileira de Cartuchos in Sao Paulo, Brazil
Date: 2003

Round 4
Headstamp: AD 05 .50
Projectile ID: ??? Brown / Maroon Tipped, Copper with Steel Core
Projectile: T - TRACER (M17)
Manufacturer: MAST Technologies of Boulder City USA, made for Abu Dhabi
Date: 2005

Round 5
Headstamp: K 87 M17
Projectile ID: Red Tipped, Copper with Steel Core
Projectile: T - TRACER M17
Manufacturer: KYNOCH, UK
Date: 1987

Round 6
Headstamp: K 81 L11A2
Projectile ID: Yellow & Red Tipped, Copper with Steel Core
Projectile: SPOTTER L11A2
Manufacturer: KYNOCH, UK
Date: 1981

Round 7
Headstamp: K 89 L11A2
Projectile ID: Yellow & Red Tipped, Copper with Steel Core
Projectile: SPOTTER L11A2
Manufacturer: KYNOCH, UK
Date: 1989

Round 8
Headstamp: K 72 L13A1
Projectile ID: Yellow & Red Tipped, Copper with Steel Core
Projectile: SPOTTER L13A1
Manufacturer: KYNOCH, UK
Date: 1972

Round 9
Headstamp: K 76 .50
Projectile ID: Yellow & Red Tipped, Copper with Steel Core
Projectile: SPOTTER BAT (Battalion Anti Tank)
Manufacturer: KYNOCH, UK
Date: 1976
Case: 12.7x77mm
Weapon: L6 Wombat - Light 120mm recoilless anti-tank weapon
Note: The original projectile has been replaced with the a SPOTTER

Anybody know the history of KYNOCH and when did they stop producing .50 BMG in Birmingham, UK?

If anybody is interested I do have a few spare rounds for trade, please contact me using PM.

 

[TonyE]

.50 calibre

Round 1 - CBC is Brazilian Cartridge Company, Brazil. L code is what it says on the tin, L8A1 ball.

Round 2 - MAST Technologies of Boulder City USA, allegedly made for Abu Dhabi. Blue tip would indicate incendiary.

Round 3 - CBC Brazil

Round 4 - Tracer, probably M17

Round 5 - Tracer M17, as it says in the headstamp.

Round 6 - Kynoch L11A2 as you presumed.

Round 7 - As above.

Round 8 - Kynoch L13A1

Kynoch ceased production of .50 around 1990, although they were buying in some rounds from other manufacturers but headstamped as Kynoch for some time before this.

You have asked for the "L" numbers of most of the above rounds, but the answer is already given in the headstamp.

Regards
TonyE

 

[EagleEyes]

Hi TonyE,
Thanks for the info.
Round 1, Does L8A1 designate this rounds as BALL?
Rounds 6, 7 & 8. What are the differences between the L11A2 and the L13A1 Spotter Rounds?

 

[TonyE]

.50 bmg

Yes, L8A1 is the ball round and the matching tracer from CBC is the L9A1.

The difference between the two ranging tracer/spotter rounds is that the L11 is optimised for the trajectory of the 105mm main gun on the Centurion tank and the L13 for the 120mm gun on the Chieftain.

Ballistics are:
L11A1: Bullet weight 40.56 g (645 grns), Vo 914m/s (3,000 fps)
L11A2: Bullet weight 40.56 g (645 grns), Vo 903m/s (2,962 fps)
L13A1: Bullet weight62.53g (965grns), Vo not known.

Regards
TonyE