223 vs 6.5 Grendel vs 300 BO vs 7.62x39 vs 350 Legend: Steel Penetration Test
This guide details a comprehensive steel penetration test comparing five popular AR-15 compatible cartridges: .223 Remington, 6.5 Grendel, .300 Blackout, 7.62x39, and .350 Legend. The test involves precise setup, chronograph readings, and crater depth measurements to determine which caliber offers superior performance against steel targets. The analysis highlights the importance of bullet construction and barrel length in achieving penetration.













