I use cardboard tubes for my 3 inch guns I have an unlimited supply from my warehouse. I use a nice coat of polyurethane or wood glue inside and out and have had them last 3 or 4 years. If you added a poly or glue coat these can last much longer just wipe out the inside for storage or before next use. I make cakes similar to this but on a thinner board and I line them exactly like store cakes depending on the size and I'd save some tube if your using them to shoot mines there usually shorter for mines than for inserts nice work thanks for sharing and keep it up I love content like this
Great to know! Thanks!
Where did you get the tube by it’s self
1 X 36 X .163 VERY HEAVY wall (9qty)
You can get them at pyrocreations.com
Wow! Thank you! My 6 yr old son has been asking me how to make Cardboard Tube Mortars recently. This is exactly what I needed.