What's your setup for slowmo shot?

I'm using a camera that shoot 1080 at only 30fps. When I play it in slow mo I can not see the pellet hitting the aniamls. I want a setup that I can replay in slowmo and see the path of the pellet. So if I missed or hit I can see where my shot is going. What's a good setup? 120fps or 240fps or higher? Anyone have a good recommendation on a camera or gopro that have clear recording and not blurry and can record fast enough to see a pellet path. My budget is about $300. Could go higher but I just don't wanna spend too much on a camera.
 
What kind of phone do you got?



A side shot camera phone mount is only $200 and would probably yield you the best results.



My iphone 10s offers 240fps at 1080p in slo mo. I am going to play around with my friends sideshot hero7 set up soon but I don't think I want to spend $1,250 on one for myself so I will probably settle for the $200 phone mount.