well im from England and am not sure if these will be the same in the US. I would personaly opt for a .223 (5.56) This round is a very high velocity yet has a relativly light weight therefore with the use of an expanding bullet a huge amount of energy is transmited into the target and therefor increase the %chance for serious hydrostatic shock. This caliber also has a very gentle tradjectory, meaning no huge problems aiming of wether it be 50m or 400!!!!


Tomy D