I think that they are both good, but the flat base seems to hold together a bit better. I reload them interchangeably depending on what I can buy and notice no difference in accuracy.

I load them right at 3000 fps from a 6mm Rem and they have performed well on white tails. I have killed over 100 deer with them out to about 400 yards with no complaints.

You did not "seen" anything, you "saw" it.
A "creek" has water in it, a "crick" is what you get in your neck.
Liberals with guns are nothing but hypocrites.