Shooting a old aluminum chair today with my Smith Wesson model 19 snub, Rossi .357 six shot with 3inch bbl. and Ruger security six snub. The aluminum legs are square and hollow. The Ruger and Rossi entrance and exit hole were about the same nice roun hole a little larger than the bullet. The Smith entrance was much larger and jagged the exit hole large and violent looking. Same ammo, 125 magnum hollow point from about 20 feet. So is the smith going faster so the round realy opens up quick or is The Ruger and Rossi going faster where the round does not have time to expand ?