Re: Cornmeal forming bad on a new barrel??
jb, I use that for several wildcats I have owned. Never had a problem with cornmeal and barrels. In fact, I will suggest that it may "lap" the barrel a bit.
Just use a piece of paper towel over the cornmeal to keep everything in place. All will blow out and nice cases formed. Works very well.
If cornmeal could damage a barrel, could you imagine what an oversized copper slug being driven down it at up to 65000psi would do?