Re: 17 hmr grouping size
I just started testing on my CZ 452 varmint last week. I bought one or two boxes of every brand of ammo I could get my hands on. Although the ammo may be loaded by the same contractor, their are slight differences. For me, the consistently best accuracy, has come from the CCI, black poly tip, and hollow point (I think they call it the game point), followed by Hornady hollow point, and poly tip (red), with the hollow point showing slightly better accuracy than the poly tips in both cases. All the ammo was accurate enough to satisfy me, at any range, with the differences being rather slight.
With the 20 grainers, the Hornady seemed best for my rifle, with the winchester a close 2nd, but I dont like the smell of the win powder... kind of stinky. Moral of the story is try different stuff and see what works. All in all, I really like the little cartridge.
If their is any problem at all, it is that I am very used to using .22 as my all around kind of walking around rifle, and so am used to its ballistic characteristics, having them ingrained since childhood, so when shooting the .17 from offhand, or a knee,
in the field... I am having to adjust my POA to hit itty bitty things at the various ranges.... just different if you know what I mean.... maybe others can chime in on this.