Steel tubular sections are frequently used in modern construction due to their structural efficiency and aesthetic appearance. In current defense operations, low-velocity projectiles are employed to neutralize enemy targets within buildings. The current challenge is to evaluate the damage caused by the low-velocity projectile, ensuring it does not inflict significant structural damage to the building while maintaining its ability to neutralize enemy targets. To assess the stability of a building, it is crucial to study the stability of columns. This study focuses on investigating the combined axial load and lateral impact of low-velocity projectiles (AA 2014-T6) on steel columns through various numerical analyses. The numerical model developed was calibrated with the existing experiments in the available literature that mostly focussed on rigid impactors. Johnson-Cook model parameters available in the literature were imported to Abaqus for numerical analyses, and models were created using a projectile of mass 26.5 kg with an impact velocity of 20 m/s. The model was analyzed by varying parameters such as column thickness, the cross-sectional shape of the column, the axial load level, and the projectile mass distribution. The results showed that as the column thickness increases, the deformation of the projectile increases while the out-of-plane deformation of the column decreases. However, the deformation of the column increases with an increase in axial load level. Additionally, the effect of mass distribution in the projectile has a limited influence on the overall deformation of the projectile.