My first handgun was a Taurus Model 66. I took it out one hot July afternoon with a partial box of ammunition my stepfather had found in his house (the one he lived in before marrying my mom, and that he still owned.) The box was labeled "Federal" something-or-other.
The fireball from the muzzle of the four-inch barrel, in the middle of the day, was still bigger than a beach ball when viewed as the shooter. My brother and I took a few turns with it, and it was just as impressive from the side. I don't know if those were reloads or factory ammo, and my stepfather could not remember himself.
I bought a lot of Magnum ammo after that, trying to find one that exhibited such a plume, but never did. I should have shot that thing at night.