Designing the 2-diameter paper patch bullet.

[Don McDowell]

Chris, Brooks makes the dual diameters to your specs. Can either get a fixed length or the nose pour adjustable. If you do try the jojoba oil, don't use much just a small drop on your finger tip, and wipe the excess off with a tea towel.
Jim the 45 rifle that shoots the dd bullet the best is the CPA 45-90 , their chamber has a bit more freebore than other's , but it will shoot that dd better than it will a greaser.