On Wed, 03 Oct 2007 17:11:27 GMT, "JoeSpareBedroom"
wrote:

"John H." wrote in message
.. .
On Wed, 03 Oct 2007 12:12:17 -0400, Wayne.B
wrote:

On Wed, 03 Oct 2007 10:17:41 -0500, John H.
wrote:

It is a 25mm cannon. Never heard of a fish cannon. Potato gun, but
not
fish cannon.


Wrong. It is a 62 caliber 76mm Otobreda.

I'm a believer.

It certainly looks a lot bigger than 25mm, that's only 1 inch.

I don't understand the 62 caliber reference at all.

Well, I looked it up, and it is called that. It's also called a 3" gun.
Maybe Tom can explain how 62 calibre equates to 76mm. He knows a lot about
guns.


For small arms, a number like .45 cal means .45 of an inch. Assuming big
guns are the same way, all you need to do is convert to millimeters.


Then 62calibre would be 62". Doesn't seem quite right.