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.
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Epps charges around 60 bucks for this conversion. Pretty simple really.
Best to leave it as is for the time being though...theres lots of cheap SAUM factory ammo floating around right now, and with any luck by the time that dries up the cost of WSM ammo will have come down a bit....then re-chamber.
As far as the mags go? Never heard of it being a problem.