|Quoting MDorBust (Reply 32):|
Can anyone tell me what the heck this thing is? It's been driving me nuts.
calibre: around 120mm
gun: certainly rifled, so the rheinmetall 120mm gun used by leo's and in license by abrams is to be ruled out
warhead: i assume its a heat warhead, since the warhead itself is NOT rotating, whilst the projectile itself is. rotation is very counter productive to the effects of heat ammunition, this was however not the reason to introduce smoothbore guns
the british use HESH rounds alot, unlike most other nations. these are not affected by rotation, and also do not cause target effect via penetration like heat or dart KE
the gun in the video has all characteristics of the L30 120mm BAE rifled gun used on the challenger, including appearance of barrel sleeve and smoke extractor. the only noticeable difference is the lack of battlefield recalibration mirror at the muzzle, something you will not need on a test rig anway, so that is not an indicator.
that round there could be the challenger CHARM3 round, its a DU
-KE round that has to be alot more complicated than the smoothbore rounds, to get it to speed and prevent it from spinning. or a new generation heat round, also with spin-supression, for this rifled type of gun. all this un-spinning that you need for all rounds except HESH it complicated, hence the tommies are upgrading to the rheinmetall L55 gun found on most recent leopards (and not L44 like on M1s or leopards up to 2A5), since smoothbore HEAT and KE
outperform rifled HESH about everywhere.
i have no picture of the CHARM3 round available, i have only had a technical description at hand.