I love how solid these BHs are built. Put them side to side with a lot of others and you will see what I'm talking about, they are SOLID!
Because of how solid they are built they end up a lot smaller in total profile than BHs of equivalent weight, this tend to surprise some people when they open the package.
My only kill experience is with a a 250 grain penetrator. Pass through on a approxiomately 180lb boar hog out of a 40# bow. I also tested the head on a freshly skinned out big boar hide with a thick shield plate. My arrow with a 250 grn VPA penetrator and 40# bow outpenetrated several of my buddies heavier bows. Passed through the shield on both sides of the hide.
On a side note: Archaeologists used to find little arrow heads and they assumed they were for small game, calling them "bird points". More recently they have determined that those small points were actually used for taking American bison!