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.
The 223 is pretty forgiving. You can come up with a load using almost any powder/bullet combination. It depends on your barrel twist, bullet weight and most of all; your expectations.
I have used IMR4198, IMR4320, Varget, Blue Dot.
Cheers
Seems Varget's the winner as far as extruded powder goes in my SPS with 40 a gr. V-max. 27.5 gr. Compressed load. 2.290 OAL. Haven't tried any extruded powders yet.