One of these days I'll get an xp-100 221 fireball. I find the slightly larger case much easier to manipulate on the press and more friendly with loads.
WAS CHECKING ON 221 FIREBALL BRASS, NOT A LOT OF SOURCES FOR IT, AND MOSTLY PRICEY, BUT IT MAY BE A PERFECT SIZED 22 CALIBER CARTRIDGE FOR 10 - 14 INCH BARRELS