Bridger
Yes, you can use your Dillon, but you may not have to. I only form brass on the press, and don't even have to neck form my 40-70 2.1" Sharps brass after fireforming. I just decap, clean, prime, and re-load. I need the press to finish seating the bullet, but finger start it. Maybe something to do with hand strength!. Some finger seat their bullets and use their press to compress the powder. I do that on my drill press.
Upshot of it all is, other than forming brass, you can almost get along without a press. As long as you can get a shellholder and the case fits in the press you are in business.
Chuck's info is good, he's very believable.