I castes some .452 200gr SWCs this week. I'm waiting on a .452 sizer, but I thought I'd try to load them as cast.
I had problems. Boolits were visibly not straight in the case. A couple of boolits got shaved even though the case mouth was generously flared. The section that shaved was the second driving band, and not the base.
Is is this a common malady of loading unsized boolits? A couple of weeks ago I loaded these same boolits after running them through a .451 sizer and they were straight as an arrow, so not sizing is the only thing I can think of that's different.
The boolits are not perfectly round. Most of them are .452 at their narrow point and .453 or .454 at their wide point. It's not a huge amount of out of roundness but it is there. Is it possible this is the cause?