Who has a 17 mach IV ?
I have been considering one for some time - probably a contender pistol barrel.
I have never had a center fire 17 caliber.
I have a 221 fireball which does produce a fireball in muzzle blast.
Does the 17 mach IV do the same in a pistol barrel? I would assume so.
I have had some ammo and brass for it laying around for a few years.