Learn more about why people argue about 9mm vs. .45 ACP, why these two rounds have been hotly debated in the handgun world, and the pros and cons of both.
45 ACP: Old, Fat, Slow, And Still Getting It Done
45 ACP vs. 9MM - 80 Percent Arms
Testing 5.7 vs 9mm - Caliber Comparison
Why People (Still) Argue About 9mm vs .45 ACP - The Truth About Guns
5 Reasons You Should Consider 9mm - Firearms News
Is a 45 ACP more effective than a 9mm for stopping larger individuals? - Quora
Cameras Don't Lie: 9mm vs .45 ACP - Guns and Ammo
9mm vs 40 caliber: How the cartridges compare
FBI Training Division Justifies 9mm Caliber Selection -The Firearm Blog
9mm vs. 45 ACP: The Ultimate Comparison
Let's Settle It: 9mm or .45 ACP? What's Your Caliber of Choice and Why? : r/CAguns