With PF on Berlin against panther - 8 shots
With PF on Normandy against Stuart - 7 shots
With M1 on Normandy against Puma - 6 shots
With Pshrek against A13 on Tunisia -6 shots
Credit / winner has to go higher on at least one AT type and campaign - results will be reviewed, so if you can provide proof great, replay ideal.
Ps Not Tanks, AT guns do not count.
Current winner:
@61839981 Guardian Reaper 
Pz3B vs KV1 - about 10 shots and a ramming
Oh, you mean AT launchers.
Then I don’t have anything.
Had a game last night I should have recorded.
m9 bazooka vs Puma on Normandy. 18 shots, then I gave up.
They weren’t even registering hits despite leaving a mark on the side of it. I know I was hitting as I was only 15-20m from it.
Try checking replays, you can record it then post on yt 
Yeah, this needs to be fixed. I went through a whole squad of panzerfausts against a T-34/85 and it just laughed and kept going.
It’s already well known bug. And already acknowledged by devs as well.
All you have to do is run ±50m away from the tank and only then shoot it. It always worked for me.
Its completely fascinating someone is trying like 10 times to do the exactly the same thing while its obviously bugged.
So how many shots was that, maybe you can take the winning spot?
It was 2 AT guys in the squad. I think it was 6 but can’t remember for sure. I was too busy raging, lol.
IS with faus 60. had to empty 2 tankhunders with shots on the side(also 2 o rear turret did nothing)
oh finished it with tnt after the driver left to fight me on foot