Now We Know Why The US Military Switched To 9mm Ammo!
The US military's transition to 9mm ammunition was driven by several key factors, primarily standardization with NATO allies who predominantly used 9mm handguns like the Browning High Power. Logistical effectiveness, including lower production costs and lighter ammunition to carry, also played a significant role. Furthermore, the 9mm caliber offers higher magazine capacity compared to older service calibers like the .45 ACP, and studies indicated that soldiers, particularly those with less extensive firearms training, could achieve faster follow-up shots and place more rounds on target with 9mm handguns, contributing to practical effectiveness.













