Quote Originally Posted by Simon_S View Post
Don't no why that cannot make a bottle necked carbide die. Would think with all the tech could be done
Carbide rifle dies can be made without too much trouble and actually not prohibitively expensive, the drawback is that you still need to lube your cases.

Carbide rifle dies really find a use in high volume situations where die wear becomes an issue.

On the other hand you could invent a new sort of die that works like a collet die but sizes the whole case, clamping it to size rather than forcing it through a smaller hole.

The Lee carbide pistol die sets coupled with a Lee turret press and a Lee auto disc measure was a combination that I found difficult to beat in the days when I was loading several hundred a week.

https://www.dillonprecision.com/dill...8_4_24498.html