How to make a part ricochet?

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I can’t actually remember how I did it myself, as this was a good while ago. (I haven’t done anything weapon related since)

I found a few things that may be able to help you though,

Calculating Bullet Drop and Trajectories

I was wondering how games like phantom forces are able to calculate bullet drop. I know that you can get a part on a ray cast but that is a straight line. Do you have to do multiple ray casts forming a parabolic curve with low resolution so to make computation less stressful? Also, if I have a slower moving object like a ball, is it less computationally stressful to do raycasting of trajectory with a delay between each individual raycast in the parabola instead of a touch event server side?

You can use this to calculate the bullet trajectory, you can just update the bullet position on each frame, like raycasting from one point to another, until you eventually hit something.

I’m sure there is a much better response that my own, if you get a bit too confused however, you can use Fast Cast, which is a very handy model (that happens to have bullet ricocheting too. (Fast Cast Link)

Hope this helps!