Why 5.7 Can Never Compete With 9mm For Self Defense
The 5.7x28mm round, while offering low recoil and high capacity, faces significant hurdles in self-defense compared to the established 9mm. High ammunition costs and limited availability of effective 5.7mm defensive loads are major drawbacks. The 9mm benefits from over a century of R&D, a vast ecosystem of firearms, and readily available, effective hollow-point ammunition, making it the dominant choice for self-defense despite the 5.7's technical advantages like its Tempo barrel system.









