Roller Shooter Tube Material (Prototype)

Hey CD :smiley:

My team is looking to test cylindrical rollers on the shooter. We’ve watched many shooter prototypes and read many threads however haven’t heard what tubing material is being used. Our main concern is when the shooter hits a high rpm, that the material would expand. Does anyone have any recommendations that they have tested or know about?

For example, one roller tube prototype we are interested in knowing the material of is from the CyberKnights (195) shooter prototype video.

Happy build season!
Sabs

Something to note is that flywheel shooters are a combination of wheel diameter and speed. A high speed roller will likely shoot less far than a big wheel low speed