On Sunday the 6th of February, we go to breakfast with a group of friends. After breakfast we were told that today was the day that if we wished to come along to the firing range, to watch a friend blow off a home made cannon. This we thought would be interesting, so along we go. Out to the N. R. Adair Park Shooting Range located on Hwy 95, about 15 miles north of Yuma.
We arrive around 10 am and within a few minutes of our arrival, we are met by the person who will shoot off this homemade cannon. "Montana" Bob is his name, cause he comes from the state of Montana. Sounds good to us. In all there is about 10 of us including "Montana" Bob & his wife Joanne. Two other couples are from Maine, our friends that invited us from Colorado & us.
The park is broken down into different areas to fire off weapons for practice. The military have a section, the Border Patrol & police have a section, the public section is broken down to small bore & handguns, the next is for rifles and then the big bore/black powder, Our category. There is also a section for people that want to fly radio controlled aircraft, an archery section, a trap & skeet section, along with a camping section.

We are headed to the big bore range to shoot this cannon off.

Assembling the unit
Made from cutting down an oxygen tank

Assembled, ready to use
Looking at the black powder can

This is the powder used

"Montana" Bob preparing the fuse

Bowling Ball that was propelled from cannon
Shot about 6oo yards

"Montana" Bob leaving the scene quickly after lighting the fuse

On this shot, there was two bowling balls used. I've pointed them out, and the fragments from one of the balls as it broke apart.

Result from broken bowling ball

The angle was changed and the ball came out at about a 45 degree angle.
All in all it was interesting to see the results of this home made cannon. Had I had the camera set to shoot continuously, I may have got a shot of the ball just leaving the muzzle.