Logged a cutting edge kill this past Saturday, wasn't disappointed. I took a 125-130" aoudad that weighed 255 lbs with my 458 Socom using the 260gr Maximum Fracture bullet, it ran 40 yards and fell over. Given the lower impact velocity(~1300fps), It expanded very similar to a TSX. It almost lost one of the petals. Expansion was great though .920-.940. I'm sure at a more conventional range for the cartridge it would perform as advertised.