There's been some anecdotal reporting, yes. But nothing to explained or analyze what's being manufactured, what's being placed into supply chains, or who gets prioritized as far was resupply.
How much ammo are formerly high volume big box sellers getting now? If they're not getting previous allotments, who is? If empty shelves are due to consumers who are buying up all they can, surely these buyers will reach saturation at some point.
I've been able to find ammo simply by doing retail analysis based on data provided by sellers' websites. I've scored additional purchases at reasonable prices by surfing sellers during rhythmic windows when resupply gets listed. But I have no clue what kind of mechanics are in play at the manufacturing or early distribution levels. Or if the sporadic resupply I've seen is truly new stock, or stuff that's been held back by sellers to even out work flows.
I would have thought at least the shooting sports media would have pried back the curtain by now.
I'm not talking about rehashing speculative conspiracy theories. Somebody out there has the hard data I'm looking for, but so far, it hasn't made its way into the public domain. Not that I've seen, anyway.