9mm vs 45 ACP: The Greatest Pistol Caliber Debate

There are many great debates that grace the display cases of gun stores and internet forums about which personal defense ammo or firearm is superior…1911 vs Glock, AR-15 vs AK-47, 30-06 Springfield vs 308 Winchester, and 9mm vs 40 Smith and Wesson to name a few.

The 45 ACP vs 9mm pistol caliber debate has raged for decades. Can the 9mm vs 45 debate be solved? Our experts weigh in on two.