When he's searching for Ingrid, Luke is shot multiple times at point-blank range by a thug in the underground clinic, yet, afterwards, he has no bullet holes in his hoodie.
The .38 and 9mm bullets are essentially the same, the cartridge case and powder charges differ. It would not be possible to identify on from another by simple visual analysis.
A legends reads KINGSTON MID 80's. It should read '80s (the apostrophe stands in for the 19).