The two loads use the identical unaltered bullet from Barnes. The velocity difference means that the lower velocity load from Taurus will expand to a greater final stop diameter. Seems that the opposite would be true, but here is the reason... The petals on the lower velocity Taurus load expand out to a perpendicular angle to the bullet shank, thus achieving maximum final diameter, while the greater velocity of the Cor Bon load cause the petals to continue curling back into the bullet shank, and resulting in a smaller final diameter. This is all based on ballistic gel tests which only compares the two bullets to each other in an identical medium. The gel results may or may not reflect real world results. For my money, I would think the Cor Bon load would be more effective, because the same large diameter as the Taurus load is reached while the bullet retains more velocity, and then continues on past that point for more penetration. YMMV....