20 inch mortar

[displayfireworks1]

I am uploading a video that should post soon, in the mean time check out this unlisted video. My friend Phil had a friend of his give him a 20 inch HDPE mortar. Anyone near Pittsburgh Pa want to make a 20 inch shell?
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https://www.youtube.com/watch?v=Jdt4vANO5iQ

[Melp]

that would be one big wood plug

[AlexR]

yeah, just stick a tree up one end, that should do it, lol.