[Imp]

Just my opinion Marcello but dont know if its worth bothering, you are quite likely to decide all arty should be if anything more not less effective, wouldnt you be popular.
Lots of stuff out there on it even a standard 155mm shell landing within 30m of a tank can cause huge damage to its systems.
Sure Fastboat Pat posted some good ones.
I did a breif test last time it came up which verified my play results, use it then follow up with an attack if its vs MBT there will be survivours unless you are very lucky.
In otherwords use like normal arty & hope the die fall in your favour
Luck/randomness play a big part in this game its what makes it tricky the unexpected happens that strike can be devasting or fairly innefective, chuck in dug in status ERA armour etc lot to test.
In fact did an AAR the unstopable T-80 this guy was a gun magnet hit buy everything ATGMs APCR multiple CM strikes & still zero damage. Got very very lucky with his ERA roles had virtually nothing left.
It was not the fact he survived the arty that surprised its fairly common & was just the icing on the cake, it was the fact he was still around when it fell that was amazing.
And you dont need an ERA equiped tank to survive recently hit a lowly M60 with it for 3 turns landing in or adjacent, managed to make it immobile but it still rallied & killed my tank with an innacurate shot, damn.