I don't about the rest of you ,But I have seen what a 5.56 will do. It ain't nice.Yeah the .308 is a better round but don't knock that little bee that is stinging your a$$.Had you rather have 100 rounds of .308 and a 12 lb. rifle or 500 rounds of 5.56 and a 4 lb. rifle.( weights are just approximate so don't get nit -picky)