Barrel/ball bearing tolerance

A place for general potato gun questions and discussions.
APB
Private
Private
Posts: 4
Joined: Sun Nov 29, 2015 9:58 am

Sun Nov 29, 2015 10:23 am

When ever I want to purchase barrel tube I can get whatever size o.d with a given wall thickness, this is fine as I can calculate what size I need. I can get either metric or imperial barrel and tube and ball bearings.

But tolerances/innacuracies never seem to go in my favour, I could buy 10mm internal barrell and 10 mm ball bearings and you can be sure they will not fit properly, and expensive bearings made to standards (not slingshot junk) cost a fortune.

How dl you get around this? Or am I just unlucky?
User avatar
tigerblues28
Specialist
Specialist
Posts: 104
Joined: Mon Apr 01, 2013 12:56 pm

Sun Nov 29, 2015 8:18 pm

Id buy lead balls and use something to patch them, rifled barrel or not.

They make all different sizes of lead balls and they will usually pancake on impact instead of bouncing back atcha'.

Use some kind of cloth or paper and go to town.
User avatar
jackssmirkingrevenge
Five Star General
Five Star General
Posts: 26179
Joined: Thu Mar 15, 2007 11:28 pm
Has thanked: 543 times
Been thanked: 321 times

Donating Members

Tue Dec 01, 2015 12:47 pm

If you want good tolerances unfortunately you have to pay. An alternative as suggested is to use softer projectiles that have a bit of "give" and therefore will fit the barrel well in spite of slight differences.
hectmarr wrote:You have to make many weapons, because this field is long and short life
Post Reply