Another option that I KNOW works well with the Fireball, is a regular short action Howa. A buddy built one on a Howa, with a PacNor full bull barrel (1,25"). That thing would SHOOT, you had to fight it to get a group over a quarter-inch. Gawd only knows what it would have done with a good trigger! It fed and extracted like a champ, too. No alterations necessary.
Jim got bored with it, and swapped it off for something else, an LVSF in .17 Remington, I think.
I have a Fireball in a CZ 527, I think it's the most accurate factory rifle I've ever owned. Just feed it Reloader Seven and any bullet 52gr, or under, and it shines.
Last edited by ratsmacker; 03/21/20.