10mm Underwood 180gr XTP | Clear Ballistics Gel Test | Glock 29 and XDM 4.5
This video details a ballistics test of Underwood 10mm 180gr XTP JHP ammunition fired from a Glock 29 and an XDM 4.5. The test utilized Clear Ballistics Gel and measured penetration and observed bullet expansion. While advertised velocities were not met, the ammunition demonstrated excellent expansion and adequate penetration for self-defense, with the XDM 4.5 generally achieving slightly higher velocities and more consistent results than the Glock 29. The instructor, with significant experience, recommends this ammunition for carry purposes, noting its performance and potential for reloading.










