I use corn meal. Never did like Cream of Wheat's ever since my mother forced me to eat it as a child. All kidding aside, some rifles will do real well with a filler like cream of wheat's or corn meal. Other times it will not make a difference or actually make things worse. All you can do is try it.

In my White Ultra Mag this summer I was doing some testing, shooting 70 grains of powder, 20 grains of corn meal (the fine ground Quaker brand) and then a conical. It did improve the over all size of the group but not by enough I decided to constitute me taking the time to do this extra time consuming step.

Now that is not the end of it. This August, I also shot some corn meal in my .58 caliber shooting 100 grains of Goex 2f, 20 grains of corn meal and a patched round ball. At 50 yards it shot an outstanding group. In fact it did increase the overall accuracy.

So while many people do not use the fillers, others have gotten some excellent results with it. Also you might be called a cereal killer, but that's the burden we bare...