I think Barracuda Hunter Extreme is an excellent pellet
The group below is 10 shots from a .177 pcp at 28yrds.
At sub 12 velocities they're not going to expand as the maker probably intended but, the head shape cuts a very neat round hole in a paper target. Transfer this, and the greater surface area created by the shape of the of the face, to live quarry, you've got a very effective hunting pellet