If I remember correctly he grouped the 270 with 7mm.
"The true general purpose big-game cartridges used in this country come in but two calibers, 30 and 7mm (the .270 Win., is merely a slightly aberrant 7mm whose bullets are .007" under size}. (American Rifleman, December 1986).
"actually, the .270 is so close to being a 7mm that its .277" diameter bullets will not drop through the bore of some 7mm's" (Hunting Rifles & Cartridges)
Finn may not of heard the old saying " close only counts in horseshoes and hand grenades".
