Yes I do make these tools, and so do a few other guys. We were talking about Hoehn a few weeks ago, because someone wanted the tool used in step 5, and he usually stocks them. I do not remember the thread, but will keep looking. If some one can remember please cough up ron's web site.
The tool for step 4 is another matter, I have only made one of these fixtures, and would need quite a few orders to embark on making more. It is cool, and is fast to use, but a pain in the a_s to build. I sort on the body in .0015 increments.
Anything greater than .003 I use for hunting at less than 1,400 yds. and pressure tests with new powders and bullets. Any brass greater than .0015 and less than .003 I use for Ultra long range hunting. The brass that is less than .0015" I reserve for things like DC's money. [img]images/icons/smile.gif[/img]
S1, since your case body wall thickness checker is a one of: What is your opinion of Neco's gauge for TIR and wall thickness checking?
This information is virtually unobtainable elsewhere.
Learning, Loading and Shooting: 308
- If the cases have identical internal case capacity wieghed with water, what does the thickness matter at .5" above the head?
- Is it an accuracy issue or is it one of case life?
- Variation tolerance of .0015" and distance of .5" above head, how do you arrive at these specific figures? Tell us something that supports this being worth while? If you have said somewhere, I missed it. Thanks.
The other steps, I follow you on. [img]images/icons/smile.gif[/img]
The case wall thickness issue does not affect pressure in a significant way that I know of. The reason we measure it is because we resize the case, and care about concentricity. Any time you resize with different wall thickness you move the thin side more than the thick side, which allows the case to misalign with the neck, not good.
I don't know if there is a small affect on case life, I have not noticed it if there is.
The wall of a case tapers thinner the closer you get to the neck. We have found that if you measure too close to the bottom you can be fooled, and too high there is not as much variance to measure, thus .500 above the bottom of the inside of the powder column or end of the flash hole works well with Lapua cases.
It is truly an accuracy issue, concentricity affects accuracy, whether or not it is worth it is up to you and your style of shooting. [img]images/icons/smile.gif[/img]