I have never seen it so it cant be that common. If you reload you may want to look in to trail boss.
this is from the factory and it states how to come up with a trail boss load for your caliber.
Shot placement is everything! I would rather take a round of 50BMG to the foot than a 22short to the base of the skull.
all 25 of my guns are 45/70 govt, 357 mag, 22 or 12 ga... I believe in keeping it simple