Carbide Dies for Dillion RL550B

I'm using their carbide full-length resize die on my 550B for loading my AR brass. You still need to lube them but it doesn't seem to be a big deal. A very quick spritz with some Hornady spray and they do great--never had one stick. The big benny is that they supposedly don't scratch the brass as much and you can't wear them out.
 
If you shoot large volumes of ammo, then absolutely go for it if your budget allows. I was skeptical on how much of a difference in feel there was with resizing, however I am now a believer in the Dillon Carbide rifle dies after using my Hornady and Redding 223 dies. Hit them with just a tiny bit of Dillon case lube and you're ready to fly with much easier resizing.
 
If you shoot large volumes of ammo, then absolutely go for it if your budget allows. I was skeptical on how much of a difference in feel there was with resizing, however I am now a believer in the Dillon Carbide rifle dies after using my Hornady and Redding 223 dies. Hit them with just a tiny bit of Dillon case lube and you're ready to fly with much easier resizing.

I could write virtually the same post. Picked one up in a trade. If I lost it, I would be on the phone to Dillon.