Completely pointless waste of time to argue about the two.
For defensive purposes:
1) have a gun
2) know how to use it
3) if possible, have a long gun
Tactics and marksmanship are far more important to the outcome than any difference in the terminal ballistics of one rifle caliber versus another.
For defensive purposes:
1) have a gun
2) know how to use it
3) if possible, have a long gun
Tactics and marksmanship are far more important to the outcome than any difference in the terminal ballistics of one rifle caliber versus another.