Hornady OTM-A® bullets feature the most popular OTM bullet profiles and weights from across the industry. The consistently concentric AMP® (Advanced Manufacturing Process) bullet jackets feature virtually zero runout and near zero variation in wall thickness, making the OTM-A® bullets exceptionally accurate. The OTM-A® bullet profiles were modeled after popular OTM style bullets already being fielded by tactical marksmen, and require no change to ballistic solver information.