The ITC Data Book 5 was developed by a U.S. Navy SEAL and has been formatted for the hunter, competition shooter and sportsman. Fully functional and can stand alone as your complete resource for the documentation of your personal shooting habits and capabilities. Also very desirable as a necessary back up to any downloaded program utilized electronically. Smaller than a cell phone with the strongest and most reliable writing paper unique only to our ITC Data Books.
This is the same "Never-Tear" paper I first used when conducting underwater dive operations in the SEAL Teams. Absolutely no match for reliability and strength of any other kind of marketed waterproof paper like Rite in the Rain or TYVEX, guaranteed!
A few sample pages: