Honestly. Thats a stupid response!
Sectional density is important for a number of reasons, But no one realistically believes that a good 277 calibre projectile doesn't have plenty enough sectional density. That sounds like an argument to use when you have nothing else. With a 270, what "comes out of the barrel " is a projectile with more than enough sectional density, around twice the weight, Travelling at the same or greater speed depending on exact projectile being used, All things being equal- exactly the same ability for the projectile to function correctly re expansion and impart its energy, more energy to impart, and a greater projectile diameter.
All of those factors help a projectile kill well.
For the last 30 years ive used both calibers with .223 and .270 on thier head stamp. Both a great in thier own way. I am under no illusions on which one though has the greater ability on big game.
Bookmarks