IMR 4831 is a great powder, aside from it's cutting action using that dispenser it has no other flaws? In my 30-06 it was very accurate. I always throw .5 grain under and trickle the precise amount to completion for hunting loads. So time was never a problem.
If you are looking for a new powder follow FrankenMauser's advice. I saw one of the best 300 yard 5 shot groups with a bone stock savage model 16 in .243 and Superformance powder. Nosler 70's and federal std primers. Talk about the ultimate coyote load....3 shots touched and the other 2 were about 1/4" away.
Very stable load at freezing temps shooting squirrels. (my middle name is overkill) Use data from the "Annual Hodgdon load magazine" published in Jan each year. It has some accuracy loads using this same powder and .243.
Burn Rates from Hodgdon
123. VihtaVuori N160
124. Hodgdon H4831 & H4831SC
125. Hodgdon SUPERFORMANCE
126. Winchester Supreme 780
127. NORMA MRP
128. Alliant Reloder 22
Read this info from Hodgdon
http://www.hodgdon.com/PDF/SuperLever.pdf