I'd rather 22" myself on the little FB. I got 3600 or more with Lil Gun and 40 grainers. Little thing flat shot.
Not to hi-jack the thread, but 3600 fps or more with a 221 Fireball??????? Are you sure?
I think Hodgdon lists max velocity right at 3380 fps with Lil Gun and those have loossened primer pockets and even blown primers out of my buddies LVSF with loads below published data. And my tight chambered Fireball shooting close to max data (Lil Gun)is starting to show signs of pressure with velocities hovering around 3300.
I realize there are fast and slow barrels, but 300 fps?
If you are indeed getting 3600 fps, thats great and amazing for such a small capacity case.
Good shootin'
