Johnw: Settled on the Hornady 17 grain V-Max ammo for all my 17 HMR Varmint Rifles (and one Smith & Wesson extremely accurate revolver!) as it was the most all around accurate, lethal, available and affordable ammo.
Over the years Varminting partners still give me some of their ammo to "try" in my guns but haven't been persuaded by any of it to change as yet.
Did shoot a friends Varminter that he had "switched" to the A-17 ammo and it did well in the field but again its "pricey" so no motivation to go there.
Best of luck to you but be sure and give the Hornady 17 grain V-Max ammo in your gun.
Hold into the wind
VarmintGuy
