This is an interesting approach to big bore airguns; wondered if anyone on here has seen one: http://air-ordnance.com/modoc-p-963.html
"30cal"Here is another company that does that: http://www.inovairtech.com/Magnum_Air_Cartridge_MAC_s/1819.htm
Boy, $1350 US for something with a stock off a early 60s economy rimfire..... Interesting concept.