Not multiplayer. Attaching images – the barrel and the radial impulse in the BP_BulletProjectile. When I create my own DM it is destroyed.
https://drive.google.com/open?id=0B8oZFWQFf8T1SHBCR3Z5ZGMydVU, https://drive.google.com/open?id=0B8oZFWQFf8T1aTY3SkV4ekdzYmM
If you want I could zip the project and if you had a place I could upload it to you. Would that be OK?