Momentum, Cole. All things being equal (nose shape, meplat size, bullet hardness), the 300 should handily out penetrate the 240. How much is enough -- if you get an exit on the animal, you certainly have enough......


Max Prasac

Semper Fidelis

The Gun Digest Book of Hunting Revolvers:
https://youtu.be/zKJbjjPaNUE

Bovine Bullet Test
https://www.youtube.com/watch?v=mmtZky8T7-k&t=35s

Gun Digest TV's Modern Shooter:
https://www.youtube.com/watch?v=nGo-KMpXPpA&t=7s