It looks like Bill Alexander and company have been busy and the end product is the Alexander Arms Ulfberht .338 Lapua Magnum. This is a gas piston driven semi-automatic .338 Lapua with a 10 round double stacked magazine. The design is rooted in the DP28 Russian Degtyaryov machine gun.
If you’ve ever experienced an Alexander Arms rifle you know they’re tack drivers and if the scuttlebutt holds true so too is the Ulfberht .338 Lapua Magnum from Alexander Arms.
FOG HORN 