I have had a CZ 452 in 17M2 for a few years. I love the rifle and round,
shoots flat and does a number on everything I have shot with it. There
are some good buys on Eley ammo these days. That is all I ever use, it
has been accurate and dependable. If the ammo goes away, get a new
barrel in 22lr or bore your old barrel and install a liner in it.
FM