All of these pellets will penetrate hard targets better than lead pellets, but the results may not necessarily be so in ballistics gel. The principles in this video focus on the Daisy Powerline 880, but they also apply to the Crosman Pumpmaster 760 and the American Classic 1377.
.177 caliber pellets tested in this video:
Skenco Blue Arrow
Skenco Golden Rod
RWS Hyper Velocity/Fast Flight
Gamo Lethal
