Really? A 1" hole all the way through? If that's true, where does the meat go? Does the bullet push it out the exit hole?223 fan said:with a good 223 sp. The hole will be at LEAST 1" in diameter, and SOME loads make 2" diameter holes in men. Inside of you, they will scamble a 3-4" diameter "tunnel" thru your vitals, too.