How to slow down a bullet on entry(help)

Hi, i created a certain mesh and i would like to make it so that when ever i specify a specific particle or actor that it would slow down its movement and have another parameter for when this object stop completely

I’m kind of new to unreal engine so i don’t know if i need to use blue print or there is already a volume for that so what should i do?

Thanks in advance

wow, nice work, can share your code so that we can easily understand what is required for your requirement !

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Hey, maybe this helps?