marble size barrel???

[bikingpro911]

i cant find a topis on here that lists the size barrel to fit a marble really snuggly. what size would i need?

[Mr.Sandman]

I should have told you this in the chat room earlier, but there is a thread posted on it in the ammo/materials discussion forum. Just use the search button next time.

[clemsonguy1125]

Umm try thin walled(sdr) 1/2 inch or you can buy mini marbles for regular 1/2 pipe

[Brian the brain]

Depends on where you are.
In Europe, marbles are generally 16 mm.
In that case you need to find 20 mm aluminium tubing with an inside diameter of 16 mm..

[eriko1337]

16 mm inside diameter fits good for a marble if u put some wadding round it