8" Or 12" Firework Mortar Tubes

Should I use 8” or 12” firework mortar tubes for mine shells? You can use either 8” or 12” tubes if you use an 8” tube the mine shell will have a wider break when it leaves the firework mortar tube, but if you already have 12” mortar tubes you can use them. The break just won’t be as wide with a 12” tube verses an 8” mortar tube. Hope theses helps all you pyros.

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