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.
I have not, but I did use one on a 223. The dials are custom ordered based on your specific load/velocity. The caliber doesn't matter so much as the info is accurate. They are ok.
