Dennis Winegar 13.09.22 Dave Propri SDI helped me in so many ways. Even with having a very successful second career after retiring from the U.S. Army, SDI helped me to launch yet another chapter in my life that I wake up excited about every day. RELATED STORIES Firearms Tech Can a Brick Stop a Bullet? read more Military and History SDI Press On Memorial Day read more Drones Designated Event Organizer: What You Need to Know About the Drone Racing League read more