One other thing... I have a .223 Howa mini that I am thinking about building a Fireball based rifle on. With the Oregun hinged floorplate I couldn't get Fireball cases to feed. I switched to the JO CZ 527 bottom metal and with 223 mags it will feed .20 VT fair. I think I can improve it some with tweaking of the feed lips. I just tried it with a CZ 527 .221FB mag and it wouldn't feed worth a crap....go figure. I am not worried because I plan to use it for colony varmints and a "Bobsled" block converts it to a single shot and those work great in the minis with the 527 Bottom metal.
