How to ignore between bullets? (ue4 4.27)

hi.

i implementing some bullet with projectilemovements.

i created pistol, and it fired one bullet at one fire events.

it works well, but when i fired multiple bullets like shotgun, it cause collision event between bullets.

i setup object channel for bullets, it seems below.

i want bullets to interact with gameworld except bullet self.

is there any solution to solve this situation?

best regards.

i solved this problem with collision preset setting below.