Gimme FIVE!...10MM Underwood 155 VS 150 Grain Self-Defense AMMO Ballistic Gel Test & Review!
This video presents a ballistic gel test comparing two 10mm Underwood ammunition loads: a 155-grain XTP and a 150-grain Nosler Sporting projectile. The test, conducted using a Glock 20 Gen 4, measured velocity, penetration, expansion, and fragmentation. While both rounds performed well, the 155-grain load demonstrated superior expansion and slightly less fragmentation, leading the reviewer to favor it for self-defense applications.













