ORIGINAL: Chantecler111
Ok, zrex, tell me, would you rather use, a .338 Win Mag, or a 7mm Mag, on a grizzly bear? Or do you even own a magnum caliber? If what you are saying is true, then, the faster 7mm mag, would surely blow a bigger hole in that bear right? Because it expands more due to higher velocity.
No thats not what I am saying, you have to compare expanded bullet diameters. A 338 is already starting off bigger in diameter than the 7mm. Fire both into an animal and recover bullets and measure expanded diameters, the .338 is going to leave a bigger hole and penetrate more with the heavier bullets. Compare a 7 mag to say a 7-08 at 500 yds, the mag will have the needed velocity for expansion, see what I am trying to say ?