While you are on the site, in your browser find and click "Add to Home Screen" A CGN beaver app icon will then be created to your phone that is directly link to the site.
Note: This feature may not be available in some browsers.
Really, the best - only - way to know what your chamber looks like is to cast the barrel using Cerrosafe. Once you've cast it, it's simple measurement. It's about $30 for a small ingot.
