Vekar, tungsten is rare - if you happen to live in the USA, where only 10% of the world's tungsten can be found.
According to the website:
www.mii.org... - the USA imports roughly 75-80% of tungsten. China is the biggest producer of
tungsten, followed by Russia, Canada, Bolivia, with Austria and Portugal also producing limited quantities.
A
solid shot anti-tank round is
in effect an updated cannon ball in it's effect on armour, the only difference being it's penetrative
power - the balls could
probably still defeat very lightly armoured or soft skin vehicles. Their lethality is only hindered by their shape,
muzzle velocity and the size of the powder charge necessary to increase range and penetration.
During the Second World War, the Germans pioneered the use of high velocity anti-aircraft guns in the anti-tank role. The superb 8.8cm Flak 36/37 and
the 8.8cm Pak 43/44 were prime examples. The Germans used a 'hardened' [tungsten?] solid shot fired from a long barreled gun which in turn, gave the
round a much higher muzzle velocity, increasing both range and penetrative power.
German tanks also used high velocity weapons in both 7.5 and 8.8 calibre, most notably the 75mm KwK 42 L/70 on the Panther 'G' and the 88mm KwK 36
L/56 on Tiger I's, whilst tank 'destroyers' such as the Ferdinand and Elephant fired the 88mm Pak 43/2 L/71, and the Jagd Panther used the 88mm Pak
43/3 L/71.
It was not until the introduction of the Comet in late 1944/early 1945 that British tank crews enjoyed comparity with their German counterparts,
whilst the Americans used the superb M36 GMC 90mm Tank Destroyer - both being more than capable of defeating the heavier German tanks.
Most modern tank guns fire APFSDS (T) - Chally 2, LeClerc, Abrams, Leopard 2 A6 and the
T-90. However this is where any similarity ends. The Leopard 2 A6 fires the 120mm L55 hyper-velocity gun, using a DM 53 tungsten long rod penetrating
round.
The Abrams on the other hand, fires a 120mm M256 smoothbore gun using either the
M865 TPCSDS-T or the M829 APFSDS-T (DU) round.
It should be noted that the Leopard 2 A6 has a much longer barrel that that employed on the Abram, but the American tank gun can only achieve the same
accuracy as the Leopard if the DU round is fired.
Having said that, the longest ever tank v tank kill was achieved by a Chally 2, using a 120mm L30, rifled tank gun firing a Charm 3 projectile as
supplied by Bae Systems. The actual distance was 5.1km.
See www.army-technology.com/contractors/ammunition/apfsds.htm
With regards to the dangers of a DU round, Westy is absolutely correct. The inert round is harmless. However, when the dart strikes armour and
penetrates, uranium dust is produced and it is this material that is fatal if breathed in.
I also have some concerns about the use of DU in armour. I would suspect that the same problem would occur if a projectile penetrated said armour.