Robert my rechamber was done by Mike Bellm. It took awhile. About 2.5 months. I think if you want speed someone else is the way to go. SSK is fast and very accurate. Van Horn may be also I dont know. I think VVCG is pretty slow as well as Mike B. BUT they do a great job, well worth the wait in my opinion. I have nothing but good to say about the accuracy of my rechamber. Hope this helps.
Mike