Well gentlemen, the 230 Douglas is one of the most devastating cartridges ever turned loose on a whitetail deer. The Matrix 105 gn zips right through them BUT it destroys every tissue within 12" of where is zips through. My first shot I lead him a bit more than necessary and removed the entire brisket and broke the off side shoulder, he went down within a few paces, but sitting upright and very alive still so I put another through the ribs at about 100 meters, first shot about 150 mtrs. Everone's reaction was the same........WOW..........as large tufts of hair floated across the snow in the wind. The impact of the bullet literally ripped him out of his upright position and laid him flat on his other side, it was impressive as hell to see. The entrance hole is almost the size of a softball and the exit the size of a volleyball........This ain't no "eat up to the bullet hole" cartridge, in fact 2 poorly placed bullets from this cartridge could net zero edible meat off a whitetail deer, All I can say is..........HOLY SH!T !! The bullets effect and devastation is far beyond what I expected from this cartridge, there is absolutely no question as to it's suitability as a whitetail deer cartridge, or mule deer or quite possibly elk..........Pics up when I get home.