The CCI Clean Fire 40 S&W ammunition features 180 grain TMJ flat nose bullets specifically designed for suppressor use with reduced fouling and cleaner burning propellant.CCI Blazer Clean-Fire Suppressor Subsonic 40 S&W 180 Gr TMJ FN180 grain bullet weight for reliable performanceTotal Metal Jacket (TMJ) constructionFlat nose design for improved feedingClean Fire technology reduces residue buildupOptimized for suppressor compatibilityIdeal for tactical applications suppressed firearms and shooters seeking reduced maintenance with consistent accuracy and reliable function in 40 S&W handguns.