Well, the .17HH is quite popular already, but didn't 'take the cake' like the .17HMR did. However, it is solid performer and guys that have them, like them. It's only about 250fps slower than the .17AH. My AH routinely gets 3,900fps with 20's and 3,600's with 25's. As long as these loads are not hurting this "weakest of all CF brass", I'll continue to use them.

The .17WSM is increasing in popularity and for good reason. 3,000fps with a 20gr. really increases the performance over the HMR's 17gr. at 2,550fps (my 21" Marlin does 2,620fps & 18 1/8" Martini = 2,584fps)
This 3,000fps with 20gr. Vmax makes this .17 WSM a 300yard to 350yard gopher rifle, something the 5mm rem and .22 WMR could never do. The .17's are just that accurate. My little HMR takes gophers from a particular set of holes every year, 282yards from our firing point - if I use the Martini. The .17WSM is a LOT better than the HMR- if it has the accuracy. That's the unknown factor right now.

So - the Savage B Mag, the Semi Volquartson (I believe) and now a Ruger. Not sure about a CZ in the future.