So here is a picture(courtesy of my swaging mentor) of Larry's carbide die attempts.
Flat base core seater and point form carbide dies sets in 224, 243 & 308. The 224 & 243 cal point form die is designed for a 0.055" ejection pin & the 308 is designed for a 0.062" ejection pin. Chipping with any carbide die insert is going to be a problem, but you'll probably only see it on an exposed end or X-ray.