There is a thread a rimfire central that discusses the fate of the hm2 that may be of interest. That site has a forum devoted to just the hm2.
ht tp://www.rimfirecentral.com/forums/showthread.php?t=333643
Here is some encouraging news:
....
First, was Scott Volquartsen, whose company still manufactures a rifle (not just conversion) chambered in .17 HM2. According to Mr. V, sales for rifles chambered in the Mach 2 round have been unequivocably good. And to that, I say congratulations, and thank you for being one to stay the course! I hope success follows you in all of your endeavors.
Secondly, I worked closely with the North American distributor for Eley ammo. (from which our purchase was derived) Again, much to my surprise, the statement was made that HM2 ammo is going to most likely be available indefinitely. To that, it was also added, that more ammo is being sold now, than at any time in the last 3 or4 years. (who would have known?) And, aside from the group buy, spikes in ammo sales are noticed consistently in the spring, around the time when most varmints begin to stir. (there is a target market)
I have no intention of ever getting a HMR rifle, due to the merits of the HM2. And thanks to Clay for keeping low-cost HM2 ammo available.