Posted by Les Fraser on Nov 16, 2011; 9:36pm
URL: http://oldforum.flyshooter.com.au/Case-Prep-tp4996793p4999164.html

Hi Deane
This is what i do when prepping cases it is a long process for me as i make sure everything is concentric and square.
6x47L
New Cases Lapua
1/ Put the Expander mandrel into the neck and push any imperfections to the outside.
2/ place the case onto a concentricity gauge and put the dial indicator into the neck then check the concentricity of the neck to the body of the case some are perfect some may be out by 6 thou if they are are out then i straighten them with a Neco tool.
3/ Once they are all straight and completely i then use a VLD chamfering tool and do the inside of the neck.
4/ The next step is to skim the case neck i do the skim right to the shoulder of the case making sure that i don't breach the integrity of the shoulder (just make sure you don't cut into the shoulder)
5/ then i Use a flash hole deburring tool inside the case with a guide on it to make sure it is perfectly straight. Also the deburring tool has had the shroud cut back to 3mm of the chamfer is on the inside of the flash hole.
6/ Once that is done i then turn the case over and do the primer pocket with Forster primer pocket reamer i have had the reamer cut to a specific length because some cases have a primer pocket that is deeper than the others so to keep them the same i have had a little taken off it. The primer must sit flat with the back of the case.
7/ I will then fire the case with a match load to stretch the brass once that is done my next step is to trim to length. i don't do it twice only once then i check the cases after every 5 firing's  to make sure they are the same. I then chamber the outside of the neck with a RCBS deburring tool.

I don't use hot loads so i don't get much brass movement but it you are using a high pressure accuracy node then you probably should check them after ever firing just to be sure.

Once i have done this as soon as i shoot a match i put the cases into the tumbler for about 4 hours to give them a real clean up then when it comes to the next reload i will de prime them clean the inside of the neck with a nylon brush one caliber smaller than the case you are doing so for 6mm i use a 22 cal nylon brush for a 30 cal i use a brush for a 7mm.

would you like me to take some photo's of the tools etc for you

hope this helps Les