The origin of projectiles found at crime scenes is commonly identified by ballistic comparison. However, in processes involving a rifle, the projectile can be found deformed, making that comparison impossible. In this cases, lead fragments from projectiles can be explored to assess the possibility of a link between the crime scene, the projectile and the suspect¹. In this work, an exploratory analysis of the chemical composition of the core of rifle projectiles was carried out, determined by X-Ray Fluorescence by Sequential Wavelength Dispersion (WDXRF), with the objective of identifying rifle projectiles from different years of manufacture. For this purpose, ten samples of rifle projectiles, caliber 7.62mm, from the Companhia Brasileira de Cartuchos (CBC), with different years, were selected. The core of these projectiles were removed from the cartridge according to the procedure described by Dufosse and Touron² and divided into three metal fragments that were later compacted in the form of 1 cm diameter discs and washed with 1% v / v HNO₃, in an ultrasonic bath. The qualitative and quantitative analyzes of the samples were performed by WDXRF, using a Shimadzu® spectrometer (model XRF-1800). The spectral data obtained were treated using multivariate analysis, using the Unscrambler X® software. Chemometric analysis was able do correctly classify all projectiles according to their respective years of manufacture