Just a quick look at the size difference, or lack thereof, between SIG's new 9 mm P938 and its .380 ACP P238. Pretty strong case for bumping up to 9 mm, no?
Today on I Carry we have the new Walther WMP pistol chambered in 22 WMR, carried in a PHLster Floodlight holster along with an SOG Power Access Deluxe multi-tool.