Underwood Extreme Defender 9mm 68gr +P & 90gr Standard Pressure Ballistic Gel Test
This YouTube video features a ballistic gel test of Underwood Extreme Defender 9mm ammunition, specifically the 68gr +P and 90gr standard pressure variants. The description lists various equipment used by the creator, including steel targets, cameras, editing software, ballistic gelatin powder, scales, calipers, and various types of targets. The video appears to focus on the performance of these specific ammunition types in gel, likely measuring penetration and expansion.










