Various shells that I thought of while making the Sniper barrel.

Short rival and slugs are about the length of 40mm.

Regular slug shells require tubing listed in the name of the file.

Can't test these as I don't have any blasters that can use these shells.

Requires a 17/32 brass tube or 5/8 OD tubing of some kind depending on what shell printed. Cut tubing lengths to the end of each shell respectively. Use e-tape or adhesives if a loose fit. Sand if tight.