Pictures provided below was taken using Panther's broadside as the target, and using the Kamysh as the shooting vehicle. Selected round type was APFSDS. The MP rounds apparently do not penetrate.
Picture using Kamysh used the AMV-7 as shooting vehicle. Same result here: APFSDS penetrates completely, straight through the armored hull. GPR did not appear to penetrate.
OBSERVATION: Rounds are clearly visible on the far side of the targets after having impacted and gone through. Impact points are also clearly visible on the sides of the hull, using Thermals.