There are 6 Swearingen SX300 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 2001 and 2021.
N62SX
2021 Curtis E Beers SWEARINGEN SX300
Port Orange, FL
N87SX
2009 Carter Stephen C SX 300
Clermont, FL
N38SX
2007 Gregory Edward G Jr SX-300
Paola, KS
N300SX
2006 Spencer Scott SX300
Washington, UT
N41TS
2001 Schneider Thomas C SX300
Vincennes, IN
N58SX
2001 Huizenga Michael K SX-300
Newport News, VA