1. Echoes - some (but not most) of that is definitely an echo.
2. Also, the shooter may be switching weapons: Fire the AR-10 dry, then the AR-15 dry, then reload both.
Okay thanks and good feedback.
Is N AR15 deadly an accurate at 300 yards? Of course you don’t need to be accurate when you’re spraying.
But why only one picture of this creep?