Just my experience, 300 rum, distance was a couple feet on a wounded bear. Nothing more than a couple pieces of jacket found about the size of a pencil eraser. Fist sized entry holes, few inches of penetration, no contact with large bone. My wife, kids and meat grinder thank me for switching to solid copper bullets. That being said, i think the accubond is a great bullet for its intended use at slower velocities or longer ranges.Shot accubonds for years in a 7mag and 300 wm never had one explode and the 300 shoots 180s