Finn's book is a compilation of his American Rifleman articles from the 1980's... if you read him through the 90's up until his death in 2000 you'll notice a small bit of evolution in his thinking, and he was a comfortable enough in his own skin to say when he'd changed his mind on a previously held position.
His rifle of choice at the time of his death was the 308 Win with various 150 gr. bullets, and he'd shifted to variable power scopes.
