Originally Posted by FUBAR
I will hazard an opinion on the above:
With a micrometer top on the Wilson's, I think you will find that the Redding's are no better, and on most 7/8 die presses they are not as precise (overall).
Also the "large base to ogive differences" is puzzling, unless you are just talking about different devices giving you different measurements?
I can measure seating depth, and/or case OAL, with 3 different attachments and get 3 different lengths.... i.e. my Sinclair Hex, will measure different than my Davidson, and my Hornady, given the same bullet. Try it sometime...
The first measuring device I ever owned was the Sinclair hex tool. I didn't know any better, and still have it laying around as a conversation piece. I also have a Davidson and really like the way it works. Most of the time though I simply use the Stoney Point with custom made bushing to fit my own personal needs. I never liked the aluminum ones they sold, and have seen them grow when loading out on range. I first made my own out of a piece of brass rod, and that was just as bad as aluminum in growth! Mine are all steel, and the growth issue is only a fraction of what it once was in high heat. Carbide would have been the best option, but also out of the question for me.
Now onto the micrometer head and shim packs again. I tried to use plastic gauge shims, but when I got into some of the thicker stuff I saw a burr being raised from where I punched the holes. Later I found a mill arbor ship pack for sale that had no burrs in it. Perfect for me! Later on I bought several seater heads off Sinclair for the Wilson dies and modified them a little bit to fit certain brand bullets (always had problems with Berger low drag bullets). This helped me dramaticly. Lately I've been playing with a dry graphite lube in my seater dies, and the results are promising, but also kinda messy! Not at all impressed with the micrometer head, but maybe in the operator.