Wow, where to start. Ok I wills start by putting on my Nomex suit!
-- Case Sorting:
- a) Start by full length resizing your cases. Now Trim them all to the same length. I will usually do minimum trim to the very first time, but it does not have to be minimum, as long as it is not longer than max. Next you need to use a chamfer tool and hit both the outside, and inside of the neck.
- b) If the cases are of the correct headstamp (not formed from some other case), you probably do not need to inside ream to remove the "doughnut". Instead, you can get a outside neck turning tool and approximately 70% turn the necks. You may be suprised to see how Un-Uniform the thickness is. Some folks say to do a 100%, and this too is fine really, but I have found that about 70% seems to do pretty good for me.
- c) !!! *COMPARITIVE INTERNAL CASE VOLUME* !!! <-- before you flame me READ THIS !!!
Okay? Cool lets continue: Get some 91% rubbing alcohol. Now, prime the cases with spent primers.
Be sure you have blown out your cases of course. Also check to make sure the flash holes do not have any obvious burrs, if they do you should remove those burrs *VERY* Carefully. One of the biggest things people too do screw up a perfectly good case is to "debur" the flashole and get over zealous about it. A little tiny tiny bit goes a DAMN long ways when you mess with your flashole! Now grab a case and fill it to the top with the 91% rubbing alcohol and weight it. Dump the alcohol and give it a minute or two to dry ( you can even use a hair dryer to speed up this process) and re-weigh the case and write down its comparative weight diff, set it aside in the other reloading block and make sure you keep track of that case. Now, move on to the next and next and ... so on. You want your COMPARITIVE INTERNAL CASE VOLUME'S to be very close to one another!
This is usually about as wild as I get with my cases, and I usually can get into single digit ES by doing this.
Have a good one,