Unfortunately I don't know anything more about the stuff than what you see on that link, that's why I possed the question. I found it by doing a Google search of ".22 Magnum Ammunition". I was thinking about all of the fancy ballistic tipped ammo coming out in .22HMR and .17HMR and wondered if anyone was doing anything with the trusty (or is that rusty) old .22WMR, that's what prompted the Google search. I think that the .22 Mag. has a lot of un-tapped potential and wondered if ammo manufacturers have been starting to load better designing bullets in them. Seems to me a lot of old .22 Mag's would be coming out of the closets if these new better performing bullets were readily available and folks new about them.