Rifle is a 18" barrel dmr ar15 I built for a friend. Scope is a 4x-12x on 4x zeroed for 250 meters range is 100 meters. Area of shoot is county land that has been turned into a public range. Can not explain why the sound is off from the video but there is an echo from the shot. Wish I had gotten video of the 55 gal drum afterwards. The top was concave and cracked from the 1 lb of binary used. Parts of the mineral spirits can that was in between the target ant drum were fused to the drum.

What kind of rifle where you shooting? Is this on your property or did you go out on a logging road to shoot?