For the last 100+ years, a great deal of the effort expended in ammo technology has gone toward trying to make pistol bullets act more like rifle bullets. Every few years, a new cartridge or bullet design arrives on the scene, claiming to have gotten us just a little closer to the fabled "pistol with rifle performance."

Before we try to evaluate these claims, it really helps to have a basic understanding of terminal ballistics. And that starts with understanding why rifles behave like rifles, and pistols behave like pistols.

More on terminal ballistics:    • Why Ballistics Gel Works and Caliber ...  

For a deeper dive, check out this classic 1987 video with Dr. Martin Fackler:    • Deadly Effects: Wound Ballistics - Wh...  

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