Jeeper, that is a great looking cannon and I've got to build one like that some day!
George, the dimentions are, starting at the small end
Dia--2.700 X 5.150 long
Next Dia--3.025 X 2.750 long
Next Dia--4.00 X 4.800 long
Overall length is 12" Material is 4130 prehard
Yes, they do resemble those Brooke rifles. I would like to see the drawing you have.
Cat, I've turned down eight of these. Should we build eight cannons?
Thanks fellows
Michael