Marble Barrel size?

[rna_duelers]

What is the perfect size barrel for a marble barrel??

[zvallance1]

depends, there are all sorts of different sizes of marbles.
personally, i use some 5/8" galvanized steel (fits with maybe 1/8-1/4" room around the marble) but thats just because i was too cheap to buy the brass pipe that fit it perfectly.

so it all depends on what kinda marbles you're using

[M3NT4L]

My paintball barrel fits them quite nicely not perfect but enough to go through 1/2" PLY.

[rna_duelers]

What is the size of your paintball barrel?I need to no not just that a "paintball barrel" is a good size as i have never held or used paintballs before.

[djt]

i use half inch sch 40 pvc. it doesnt fit normal sized marbles but slightly smaller ones it fits pretty well. plus you can shoot double A batteries out of it too.