How to attach two socket components to same get socket location pin??

I want to knw how to get socket locations for 2 separate objects and attach to one pin??
Basically I have twin barrels turret, but have 2 separate sockets and want to shoot two projectiles at the same time.

The way I approached for the sockets is that, I created a cube mesh and placed a socket, then duplicated it to create a 2nd one, then those two cubes were brought inside the default 3rd person blueprint and parented under the mesh. Finally placed those to near the barrel ends of the turret. Is this the right way to do?? or is there a different way to approach this, I’m new to UE4 mechanics.

Thanks in advance.

Here’s an image to clarify the problem,