I can see that working for the common, high volume blammo stuff. 9mm.....223, etc. There may be a handful of others, as a lot of mid range calibers can use the same large rifle primers, and make do with a Varget or a 4350, etc. Wouldn't be ideal, but better than nothing.
What I find curious.......was looking at a couple powder burn rate charts the other day, and realized there were somewhere around 160 different powders listed for home reloaders........from something like 6 to 8 different company brands. Out of all that, none of them seem to have figured out how to get product to the store shelves. Or is it a situation where it does, but shelves get swept daily by folks already sitting on a large stash, going to a mountain? There is no limit to what they will buy? Would be interesting to know the size of stash some guys are sitting on.