To preface - I hold an advanced degree in Math.
I bought this book mainly for External Ballistics - instead of McCoy's classic because of the negative reviews (errors) in the latter. I found the External Ballistics chapters almost impossible to read, with drawings looking like mockery of those in McCoy's book. And Dr. Carlucci's book has its own fair share of errors - 6 or so pages of errors.
Frustrated, I put this book on the shelf to be a reference in Internal and Terminal Ballistics if/when I need it, bit the bullet and bought the "real McCoy". What a relief! Robert McCoy's book reads really well (at least in my humble opinion)! Yes it has 20 PAGES of errata. Fine, I've printed those out and added to the book. Small price for usability.
Currently (as all I need now is external ballistics calculations) I use "the real McCoy".