[Jack]

MC, does the seater stem, or plug, in your seating die match the shape of the bullet nose?
You want the stem to fit the bullet nose pretty closely, as that really does a lot of the alignment for straight wall pistol cartridges.
Some die sets come with both a round nose and a wadcutter shaped stem. You can often order another seater stem from the die maker if you don't have one that fits the bullet nose you're using- and, you can use epoxy or glass bedding material to custom fit a seating stem to an exact fit of a bullet nose, if you feel the urge.
BTW, if the cartridges you're loading feed and chamber without problem, it's mostly a cosmetic issue. Although I understand, the loaded rounds do look a bit strange.