Yes reloading dies readily available for the 25-223AR. I can not recommend CH4D however. CH4D made the first set of dies for the first group of users. We then ordered a second group buy and the kept putting us off for a year. When then finally delivered the dies it turned out that they screwed up the neck dimension and the dies are pretty much worthless.
We did come up with a very good solution. Simply buy a 223 REM bushing die (so far we have only tried Redding bushing dies) and change is expander ball to an appropriate size for .257 bullets. You will not need to purchase a bushing just an expander ball.
The opening in the ledge that the bushing sits on is what is neck sizing the case. It sizes the case down to 0.263/4 outside diameter (OD) and the Redding Tapered Size Button opens it back up to 0.277 OD. This leaves the finished sized case with a 0.253 inside diameter neck. (plenty of neck tension to hold the bullet).
Here are the MidwayUSA part numbers again:
889635____Redding Tapered Size Button #192
137496____Redding Type S Bushing Full Leng.
For seating the bullets I use a 223 seater die. Currently, I do not crimp my loads. If I discover that I need to start crimping dies I would look into the Lee Factory Collet crimping die.
Last edited by 320pf; 07-27-2012 at 10:37 PM.