TOPIC: cannon barrels

Hi,

why the hell does all the spgs in this game, german 12.8cm, stgs 122mm all have rifiled barrels when 99.9% of all tanks use smoothbore only. only tank I can think of that uses a rifled barrel is the challenger 2 and that's not even in this game
Please help.

Thanks!

I didn't find the right solution from the Internet.

References:http://forum.worldoftanks.com/index.php?/topic/557746-cannon-barrels/

Brand Launch