Local inventor, Roger Snare, recently released a wild-cat cartridge that consists of 30-06 Springfield brass trimmed back to 1.750" of length with a 0.401" diameter bullet. The chamber reamer offers 0.350" of free-bore and a standard, 3 degree taper as the bullet engages the 1-in-16 inch rifling.
Mr Snare claims the new invention headspaces on the mouth of the cartridge and any .308 Winchester barrel can be rebored and rifled to the new cartridge.
When asked why the world needed another rifle chambering, Mr Snare admitted the cartridge was designed to fill a niche market. Rumors abound that State DNRs will soon require hunters to document the action type and the chambering of the weapon used to harvest big-game. Mr Snare designed the cartridge to be legal in the maximum number of states, to be "cast-bullet" friendly and to cause State game-law enforcement personnel to "stroke out" after thousands of hunters claimed that they had harvested game with "a Snare".
The 10MM magnum case is 1.255" so the SNARE is about half an inch longer - a 10MM "SuperMagnum." So, a 200 grain .400" projectile at 2250-2500FPS that is compatible with the AR-10 platform, and with a different bolt, also the AR-15, maybe.
I need to follow this closely. It takes the 350 Legend concept to a new level.