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 imagine they'd be super, as I have a 1:12" rifling on my cq and it eats 62 grainers no problem. I would imagine, the 1:10" twist could handle up to 70 grainers , especially a SA rifle..........they don't make bad barrels.
Works fine, keep in mind ruag gp 90 62 gr was designed for the rifle with 1/10 twist. If you can find it, it's match accurate in the classic green if you do your part.