Improve your shot with the Glaser Pow'RBall Centerfire Handgun Ammunition. This ammunition was designed to solve a very common problem that many shooters experienced while using semiautomatic pistols and revolvers: Large jacketed hollow point bullets were choked during shooting. Today Glaser Pow'RBall Centerfire Handgun Ammunition is one of the best defensive rounds in the world. Many people buy it for personal protection. It has many features which make it excellent ammo. For instance these jacketed hollow point bullets have an amazing projectile.