Currently, Mk103 only has 2 belts for ground targets; however, the armored targets’ belts are pure APCR rounds, so the shell is pretty hard to break and does nothing, and the stealth belt is pretty hard to aim, the only APHE belts are for the air target, but the SAP’s performance is also pretty bad, considering MK103 ground targets belts cost is pretty high even close to 45 APHE and most of aircrafts are heavy, it should get SP redcution in GRB or have new real APHE belts
The stealth belts should be good enough. 58 pen on a aircraft gun is very good, especially how it is api, and ground targets dont have lead to calculate, so no tracers should be fine after you get used to it
It is still pretty hard to kill some tanks with spacious area, unless you hit the its ammo, and also it is pretty hard against SPAAs