Dies are no problem. A Redding type S full length bushing die lets you size down from 7saum. Redding #77280. Easy as pie.
OAL approaches 3 inches, depending on the bullet and whatever reamer you spec.
140 partitions do best for me at 3100. I got up to 3200 but the 3100 was best. H1000.
140 Berger vlds like to go about 3180.