An unexpanded .450 has three times the frontal area of a .270.
Aaaaaaaww lets see...., that's .277 x 3 = .831" . That is it was where i went to school!! A .450 Marlin bullet is HOW big????
No matter, there's just a LOT more to it than "frontal area" and "bullet weight" that determines what happens to an animial when the bullet hits it!!!
Drilling Man