Why not an hi cap autoloader .327? Is it a revolver only cartridge(rimmed)?
Problem with putting the 327 in an autoloader is the overall cartridge length. The overall length of the .327 is 1.47 inches while a 9mm is 1.169 inches in length. Anytime a cartridge gets over 1.3 inches in length, it is relegated to revolver and niche-status autoloader land. The .45 ACP is the longest of the really popular auto rounds, and it is 1.26 in in length.
For comparison, the .327 is just 0.1 inches shorter than a .357. Take a look at how many .357 autos there are out there and you can see that putting a long round in a auto is a very, very specialized market.