"...The priming as not the issue..." Yeah it is. Rimfires are primed using a slurry applied via centrifugal force. The kit from Sharpshooter($75) uses an eye dropper to put whatever liquid is used(no mention what that liquid may be.). And the entire process, casting bullets included, is done entirely by hand. Just like during the 19th Century.
However, the real issue is a total lack of BP data.
http://22lrreloader.com/