INTRO: This is my review of the Hunting Shack Munitions (HSM) 556-17T ammo (Hornady 75 GR T1 Bullet loaded to 5.56 velocities.). ORIGINS OF THE HSM 556-17T: Several years ago, while on ARFCOM, several people were complaining because they could not get any of the Hornady 5.56 75 GR TAP ammo because Hornady only sold [...]