In order to study the effects of hydrogen storage tantalum powder （HTa） on the material density and energy density of Al/PTFE reaction materials， four different Al/HTa/PTFE cylindrical specimens were prepared with varying HTa contents （5%， 10%， 20%， 30%）， and Al/PTFE cylindrical specimens without HTa were also prepared. A comparative study was conducted through Hopkinson pressure bar experiments and ballistic gun penetrating target experiments to analyze materials" dynamic mechanical properties， ignition thresholds， impact damage， and energy release characteristics. The results indicate that both Al/PTFE and Al/HTa/PTFE are elastoplastic materials with consistent stress-strain behavior. The ignition thresholds of the four Al/HTa/PTFE materials were measured as 4470 s^-1， 5620 s^-1， 5135 s^-1 and 3948 s^-1 respectively， with the ignition delay time decreasing and then increasing with increasing HTa filler content. In comparison with the Al/PTFE reactive materials， the reaction zone of Al/HTa/PTFE projectiles significantly expands between spaced targets， resulting in severe black scorch marks on the target plate and the generation of carbon deposition effect. The penetrating ability and secondary fragment damage were improved， further enhancing the material"s target penetration damage level.