I have been changing over to Redding bushing dies from RCBS standard dies. The only problem I have ran into with Redding was getting difference decapping rods sizes for set up in a 280AI FL bushing die. I order some rods, but wasn't happy with them from one supplier, but the other place Redding suggested to me did work. Graf & Son the set or parts to my dies. I had a 6mm/280AI rifle built. Getting set up to size the 280AI case to 6mm has taken a bit of thinking and set up, but got it figured out and working.
Getting Redding bushing die has been slow at best to get, and I still have dies on order. Brownell gave up on a pair of 220 swift Redding bushing dies. Midway came through with them. I still have other bushing dies ordered. Bushing can be spotty too from Redding, or from there retailers.
I did note awhile back somebody was looking for 280AI Redding bushing dies. I have gotten two, and still have 2 on order plus others.