Nope, the fact that the AP ammo doesn't affect DT is why it's shit. I've never actually played Fallout 2 modded. should probably do that at some point.I remember well playing the original out-of-the-box 1998 version of Fallout 2. I remember well that AP ammo was useful only for barter, ditto for the 14mm pistol, and that hollow-point bullets dealt more damage against every single armor type.
Maybe you're thinking about the restoration project fallout 2, where AFAIK it was fixed?
Dev attribute fuckup is not a code bug.
The original Fallout exec absolutely does have nonfunctional ammo stats, however, even if they're defined.
