Aren't 10mm & .40 S&W the Same?
This video from GUNBROS provides an expert comparison between the 10mm Auto and .40 S&W cartridges. The speaker, demonstrating high authority, explains the historical development of both calibers, noting the .40 S&W as a derivative of the 10mm created for the FBI due to recoil concerns. Key differences in case length, velocity, and muzzle energy are detailed, with the 10mm offering significantly higher performance. The current market trends and niche roles of each caliber are also discussed.













