Is the 5.7 Still Relevant? Gun Talk’s 5.7 Fest Recap
The Gun Talk 5.7 Fest recap confirms the 5.7x28mm cartridge remains relevant, showcasing its unique high-pressure characteristics (50,000 PSI) and high velocity. Testing included various firearms like the M&P 5.7, Ruger LC Carbine, and SDS Imports PX 57, alongside ammunition from Federal, Hornady, and Speer. Ballistic gelatin tests demonstrated penetration depths between 11-18 inches, with a notable lack of over-penetration compared to other common calibers, making it potentially advantageous for law enforcement.










