Designed for law enforcement and personal defense, the BARNES® M/LE TAC-XP⢠10mm/.40 S&W 140-Grain Bullets are made of 100% copper and meet the requirements of lead-free practice environments. They maintain their original weight and track straight after being fired through a variety of barriers. BARNES M/LE TAC-XP⢠10mm/.40 S&W 140-Grain Bullets, 140GRAIN - Reloading at Academy Sports