Just to be Mr Picky,
ALL hmr ammo, (with the only exception being Winchester ) is made in the same factory by CCI Speer,
The colour of the tip has no real meaning ...
Vmax , Amax, Zmax are all Hornady licensed products, They own the design patent on that bullet ( head).
Also, I don't know of any commercially available 17gr .17 bullets on the market other than for the hmr, likewise other than Kranks, I have not come across these elsewhere And Krank sell these as unbranded.
I don't think you will find any load data on these size ' heads' ( bullets ) for the .17 Hornet..
But a good start would be with a known load on a 20gr & back off slightly , then run over a Chrono & do all the usual pressure checks : stiff bolt, measure web on case ( before & after ) , visually inspect case after each shot, ect ......
Good find & good info , Guesty