content: The sound can be off when recording through a camera. It is up to the camera how it digitizes the data.  But the crisp pop is exactly how I remember the 5.56x45 NATO sounded like.  I own a 30-06 R700, believe me, that it's a little less pleasant than the AR-style 223 cals.   I love the sounds of a 5.56, but I love the sheer power off of 30 cals and higher.