A Harrell's D3 with .085" cut off the bottom works very well with the BRA#1 reamer. Even a D3.5 is ok in my book. A D2.5 may get you clickers after a while of use. Just check your before and after sizing numbers. .0015-.002 at the shoulder and .0005-.001" at .2" is what I like to see for diameter reduction. And .003" under chamber is about right. I have had to go even smaller on big cases.
^^^^^^^^ This is exactly what I did. Called Harrel's on a Monday, asked for a D3 .085 off. I asked the guy if I said it right. Laughed and said I'd have it on Wednesday.. Great folks to dead with...