Howitzer, 105mm: Mass 8, Hardpoints 8, Power Points 3, IR signiture 15, Damage 2d6, Area 20m, Crit 19-20/x2, Ammo/ton 35, Ammo cost/ton $10 000, Range increment 150m, Type projectile, Projectile Structure Points 4, Inflammable Yes
Mostly thats a simple reversing of the changes between a 155mm...