I guess I was asleep at the wheel when this stuff can out. Know a little about "steel" shot but this other stuff is new to me and I can't find much back ground data on it. Seems Titanium is slightly heavier than lead and lethal at lead velocites while heavy shot is a little lighter than lead and requires more velocity to equal leads lethality. Have I got that right? Are shot sizes the same regardless of shot make up? Educate me.