Re: 17 hmr mach 2
I just shot a flat of it through a new T/C R-55 semi-auto and was quite impressed. I would say that it will be a 125 yard varminter. Shot some very tight groups at 50 yards, 1.5-2.5 inch groups at 100 yards. Wind is critical since the bullet is only 17 grains at around 2000 fps.
Most impressive thing was how snappy this little cartridge is, they are really using a high-performance powder. Much faster cycling of the action than a .22 LR. I was very skeptical, and was pleasantly surprised. Also shot the .17 HMR and it is a level higher - 2500 fps. but much more expensive.