I'm not sure that it matters much. I've had good luck with TCs, but also with secants and tangents.
For long range target work you might want to avoid a big meplat, but even that is not 100% predictable as so much varies from bullet to bullet and load to load.
One of the goals of my S&W revolver project is to test many different bullet designs. I had been using a snub nose for bullet testing but a snub nose is hardly the definitive test for accuracy.