you guys may have seen this already but it's new to me and i thought some of you may be interested. puts a new meaning to the word "Big" in "Big Bore". hope the link works.

http://www.vincelewis.net/20mm.html

Geez.....makes the big bores we shoot look like peashooters!

That is a BIG BORE if I have ever seen one. I have the CZ 458 Lott but that doesn't compare with that big bore.

"A man-portable canon capability in a rifle configuration" is the description at the end of the video clip. It sounds about right.

There have been 20mm Single Shot rifles built before. I actually fired one about 10 years ago. However, the reason no one gets involved is they are classified as Dangerous Devices in the US and are regulated like Machine guns by the ATF. Its extremely hard to get an exemption based on the case size too as high Explosive ammunition is available for this round. -Rob

WOW!

aren't 20mm designated as destructive devices, by atf, as well as each round must be covered by a separate atf transfer