I have loaded for my 52 with a SDB. I havent had any trouble. I was making them in the 2.8 to 3 grain of bullseye. I kinda was going back and forth with the load. I also just gave it a light crimp. Id back off the crimp till a round came to the station then with the handle down. Id adjust the crimp station till it got snug then just about 1/8 turn more. I was loading Speer HBWC.
Ive since moved on to a XL650 and still make good rounds for the 52 using Dillon dies.
I cant say what I am doing exactly right or wrong but it works for me...
I just stuck the ammo box in the picture, its really my reloads.