10mm vs Clay
This video from Kentucky Ballistics tests five different types of 10mm ammunition from Underwood Ammo against approximately 100 pounds of clay. The clay serves as the test medium to observe the performance and terminal ballistics of each round. The video details the specific grain weight, muzzle velocity, and muzzle energy for each of the five Underwood Ammo offerings, including Xtreme Defender, Xtreme Penetrator, Bonded Jacketed Hollow Point, XTP Jacketed Hollow Point, and Flat Nose Hard Cast. It also promotes Kentucky Ballistics merchandise and social media channels, offering a discount code for Underwood Ammo.









