How does the length work out for you? This is posted on another forum, and some responders say that the brass will be short by 0.050". I would think that the reforming process would lengthen it sufficiently.Yes you can.
I'll measure the case lengths of some of my fire-formed brass and add to this post, providing some case length data. I'm not aware that a shorter case neck will substantially degrade accuracy, provided all the cases are trimmed to the same length. There's plenty of case neck length to hold the bullets securely in the case.