<p>Depth of penetration (DOP) is a key indicator of the penetration performance of the earth penetration weapon (EPW). The nose shape of EPW is the main factor which affects the target resistance and the penetration performance. This study introduces a novel asymmetric grooved-nose projectile designed to enhance penetration capability. Considering the combined loading of radial compression and tangential shear during the penetration of asymmetric grooved-nose projectile into concrete targets, an extended quasi-static cylindrical cavity expansion model is proposed, which incorporates the effect of shear stress on penetration resistance. Based on the geometric characterization of the asymmetric grooved-nose projectile and the solutions of the extended cylindrical cavity expansion model, an analytical model was derived to calculate the ultimate DOP and characterize the passive rotation effect of the projectile. Comparative penetration tests were conducted on semi-infinite concrete targets using the asymmetric grooved-nose projectile and the traditional ogive-nose projectile, with impact velocity ranging from 500&#xa0;m/s to 800&#xa0;m/s. The DOP and passive rotation effect of the asymmetric grooved-nose projectile were analyzed, and a comparison was made between the predictions of the analytical model and the experimental results. The results show that the theoretical analysis is in good agreement with the experimental data. Passive rotation effect of the asymmetrically grooved-nose projectile is observed both in the experiments and the theoretical model based on localized interaction models (LIMs). The asymmetrically grooved-nose projectile exhibits excellent penetration performance, and its passive rotation effect reduces the penetration resistance.</p>