Barnes and Trophy Bonded bullets recovered from game. From left:

(1) unfired Barnes 570 grain 500 Nitro Express bullet
(2) Barnes 570 grain 500 NE bullet fired into elephant chest which did not fully penetrate on a broadside shot even though no bones were hit (46 inches of penetration). Note - a Bridger fired on a similar shot penetrated all the way through.
(3) unfired Barnes 500 grain .474” bullet
(4) 500 grain Barnes .474" bullet fired into elephant head (frontal brain) (25 inches of penetration)
(5) 500 grain Barnes bullet fired into elephant head (34" stopped in neck vertebrae)
(6) unfired 500 grain Trophy Bonded Sledgehammer .474” bullet
(7) Trophy Bonded 500 grain .474" fired into elephant head (frontal brain) (36 inches of penetration, stopped in neck vertebrae_.

Interestingly, on average the Barnes solids penetrated the shallowest of from among the group of non-expanding solids consisting of Barnes, Bridger, GS Custom, Trophy Bonded and Woodleigh. I attribute that to the hemisphereical round nose design combined with a brass that is less dense than the materials some other companies are using to make solids.