Back in 2000 in the February edition of Handloader Magazine a fellow wrote up a super duper wildcat he developed. I believe he called it a B29. Have to build one one of these days.

"No free man shall ever be debarred the use of arms. The strongest reason for the people to retain the right to keep and bear arms is, as a last resort, to protect themselves against tyranny in government." Thomas Jefferson, 1776