Fully supported chambers for .45 ACP +P ?
This picture shows the .45 acp cartridge inserted into the chamber of my S&W 4506 barrel.....my camera skills are lacking but hopefully you can see the case exposure going up the feed ramp ! I'm not sure what is considered supported and non- supported as far as how much case is exposed beyond the extractor groove ! There is only a slight smile of brass showing right under the feed ramp on mine ! So what would you consider my chamber as ? Thanks !