Everthing, they are the CSI of your harvest. While testing the Remington Accutip in Africa recently, I was lucky enough to recover 4 out 6 slugs. The weight retention was as advertised and slugs held up flawless. With 2 slug expanding to over an inch. The springbok and duiker were pass thrus, but that can be expected. The picture left to right, new slug, blesbok 172yds, implala 125 yds, kudu 55yds, bush pig 10 yds.