Equipment Editor question

[Tcao]

in Equipment editor if I add shell weight for tank gun, (SU-152,KV-2, etc) will it have any effect on attacking Fortified defender?

Thx

[Lobster]

19.2.2 Artillery vs. Entrenchments
Artillery can lower the effectiveness of prepared defensive positions during combat. The effect
is intended to model the earth-churning tendencies of heavy Artillery and is tied to the weight
of individual shells. Heavier pieces are much more effective than lighter pieces. MRL’s (Multiple
Rocket Launchers) generally do not receive this advantage. While the Anti-Personnel strengths
of heavy Artillery may seem weak (due to very low rates of fire), weapons of 150mm or larger
can be very effective against entrenched enemies.