I have a reamer and gauges for the Fireball and have built three. I did one in a 700 with a 12 twist 26-1/2" barrel that was quite fast with 40 grainers at 3400. This was with LilGun powder. I got tired of trying to make the 223 action feed and eject properly (it extracted fine of course) and rechambered it to 223. Then I bought a new CZ 527 in the Fireball. Great little rifle. It's an efficient little case. Quiet and accurate. Unfortunately I moved out the CZ when I acquired a Sako AI Hunter in 17 Rem.

Last edited by rembo; 02/22/16.
"after the bullet leaves the barrel it doesn't care what headstamp was on the case"
"The 221 Fireball is what the Hornet could have been had it stayed in school"