Re: new Chinese supertank,question....
Well, that's your point of view. According to Russian tank experts, the T-80 (the contemporary to the M1*) is more than a match for the Abrams. The Russians have a solid history of making great tanks. It wasn't until the M1 that the West came close to matching them. Recent western experiments with non-monkey-model upgraded T-80s from Ukraine were an eye-opening experience . The T-80s were much better protected than previously thought. The T-90 has 75% the mass of a M1, while having 50% of frontal surface area and internal volume. Where does all that mass go? Armor. That's the advantage to using an autoloader. You save space and thus your tank can be better protected for the same mass. Your "facts" about the ability of Russian and former Soviet armor are outdated and incorrect.
I'm not sure whose "facts" this post was meant to address, but T-80 is not a match for M-1A2, though those fitted with advanced ERA may approach or equal its protection. In any case, the upgraded tanks of the 1990's and today were not present in the 1980's. Even T-80 did not have KAKTUS at the time. It is not accurate to consider that the protection levels of such upgraded tanks are similar to what earlier versions of the same tanks had back in the 1970s or even 1980s.
The Russians were great at designing and building tanks up into the 1960s and 1970s, but appear to have more or less rested on their laurels, so to speak, ever since; T-64 was a real revolution in tank design, but nothing since has made quite the same impact.
Soviet guns and ammo are of rather lesser performance, and even the Ukrainian 125 mm is claimed by its manufacturer to be accurate to only 2,500 m, versus the published figure of 3,000 m for the German 120 mm. The Chinese themselves claim a 25% improvement (and an increase in barrel life to 700 rounds) for their 125 mm over the Russian (1,800 m), which puts it in roughly in the same league as the Ukrainian gun. All these 125mm smoothbores use gun-launched missiles to reach out to 4,000-5,000 m.
The US Army, by comparison, has been developing similar weapons for the 120 mm, such as the
, with a range of up to 12-13 km. The
Ukrainian manufacturer provides some performance table for its versions of the
and
smoothbores. They also provide performance specifications for the
on the original T-72's and on the upgraded Ukrainian T-72 AG (brought out in 1997). Even the upgraded 125 mm with the ballistic computer has an effective range of only 2,500 m, compared to the original's 1,800 m.
All this said, once again, I'm not sure what "facts", provided by whom?, were considered to be outdated or incorrect, in the previous post. Or for that matter, how this really has much to do with speculating on future PLA tank design. As the PLA has its own 120 mm rifle, for example, and almost certainly a certain degree of composite-armour production capability, if it were to decide that (if) it were preferable to advanced ERA (which the PLA appears to have advanced to a very high level, roughly comparable to composite armour protection levels), it seems that China could produce a very advanced follow-on to Type 99 if it saw a reason to do so.
It would not suprise me in fact, given the PLA's admiration of the Leo 2, to see something with many of the same characteristics to take form in the not so distant future, if such an event were to occurr. Perforated armour has certainly emerged as an alternative to composite armour, and China undoubtedly has the ability to produce both though the latter perhaps not quite up to Dorchester standards (even the US doesn't have it, only the Brits).
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Sorry Sargon, I didn't see your post until I'd finished mine. The original reason to go to the smoothbore (invented by the Russians) was to get the highest possible velocity out of sabot rounds. But ever since the Brits invented driving bands for sabot rounds fired from rifles, the penetration performance gap between smoothbores and rifles has practically disappeared; plus rifles have a longer accurate range and can fire rounds like HESH, which is great for destroying field fortifications.