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This is what I found online. Would anyone agree on the delays?

caliber time height radius
3 3 400 125
4 3.5 550 175
5 4 700 210
6 5 775 250
8 6 950 400
10 6.5 1075 425
12 7 1175 450

Can anyone tell me if there is a general rule of thumb on Chinese and American Shells for lift time. For part of my finale, I am wanting to go for an effect with 3, 5, and 6 inch shells all busting...