This study explores the dynamic behavior of High-Performance Reinforced Rubberized Concrete (RuC) beams. RuC was formulated using locally sourced materials, incorporating supplementary cementitious materials as a cement replacement, with rubber partially replacing sand. A novel blend of 10 mm and 7 mm coarse aggregates, enhanced with Waste Tyre Steel Fibres (WTSF) up to 2%, was employed. This novel material exhibited a compressive strength of 86.4 MPa at 28 days, which further increased to 92.56 MPa after 140 days. Dynamic performance of RuC beams were assessed through drop-weight testing, which involved subjecting the reinforced RuC beams to high-energy impacts to evaluate their impact resistance. The impact testing revealed that reinforced RuC beams supplemented with WTSF performed significantly better, compared to standard RuC beams without WTSF. Moreover, the inclusion of WTSF resulted in increased peak impact forces reaching a peak impact force with 2% WTSF of 424.57 kN—17.6% higher than beams with 1% WTSF supplementation and nearly 65% greater than control RuC beam, while mid-span deflection was reduced by 16% in RuC beams supplemented with WTSF. These results highlight WTSF’s crucial role in enhancing the dynamic behavior of RuC beams, offering a sustainable and high-performance option for structural applications.