Mine is a mix of 40 years ago and newly acquired as I got going and realized ammo quality had to up its game to match the gun quality.

So while not required, a match set die by RCBS or Forsterr with Micrometer seaters is a large improvement but the cost is great. (over $100 each and you might as well get the sizer die to go with it!)

Then I bust my Forester sizer pin with an unintended mix in of some HXP that had the crimp out but not gone enough. sheeese.

Unlike RCBS who will send you parts even if you goof , I had to buy the pin - grrr