I cast with a bottom pour for many years. You just can't get the kind of stream out of as a ladle. To be more specific even if the stream is small out of a bottom pour it has more pressure along with it then a ladle. I think that is where the difference is. If you open up the stream wider then it gushes out of the cavity.
Nope. Not with a Rowell. I hold the mould vertical and pour lead with about an inch drop into the mould. My ladle also holds a heap of lead, I can fill a 6 cav 420 gr 45-70 mould in a single pour.
There are ladles and there are kiddie toys from Lyman and RCBS. Won't even discuss the Lee teaspoon, err, ladle...
Brad nailed it . . .