Moosemike, yes it was. A young, prehistoric man and injured girl are banished from the group, and fend for themselves.
This just unlocked a core childhood memory. Another of his books that was really cool: Boomerang Hunter.
Along those same lines of fictional books leading to wanting a cartridge, Deathwatch by Robb White. The young hunting guide in the book carries a 22 Hornet, which I thought was just so cool.
