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Originally Posted by 82nd ABN Looks like the BH match brass I have has the crimp that goes all the way around the primer pocket. I have not seen many types of crimps, I have seen something that appears to have three notches in some of the other brass.
Are there two different tools to be used, one to remove the crimp and another one to uniform the primer pockets. As usual I ask a question and some times get a little more confused than I was before. I thought the primer pocket uniforming tool did both jobs in one shot. |
Yes, one tool is used to uniform the depth of the primer pocket and another tool is used to either cut out or swage back the primer crimp.
After depriming the case first deal with the primer crimp and then move on to the primer pocket depth uniformer. If you try to uniform the PP depth before dealing with the crimp it's hard to get the depth uniformer in.
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Lubing inside the case necks just before resizing can really improve both the headspace uniformity AND reduce the rounds total indicated runout (TIR) as if that expander ball is grabbing, gouching, or catching as it comes back out of the case body and through the neck area it tends to pull the neck out of line, etc. Myself, I use a very light coating of Imperial on a Q-tip and deposit it right at the inside base of the neck where it meets the shoulder so the expander ball picks it up as soon as it starts entering the neck.
TIR can sometimes be improved just by putting an 7/8th inch ID O-ring between the dies lock ring and the reloading press. This O-ring allows the resizing die to "float" in the threads and also helps it to self-align in the press. You just screw down the die against the O-ring until the headspace is right and then get to resizing. This "O-ring" method is "automatic" as once the resizing die is set up it just happens during a step you would be doing anyway and thus you are not adding a lot of work to bulk-reloading.
I don't myself worry about what Imperial might be left in the neck after resizing as I feel the expander ball scrapes it down to such a thin layer it is not an issue. The Imperial I have to periodically clean off of the top of my resizing die expander balls seems to confirm this theory.
Frankly, as I once read an article in Precision Shooting magazine where "cold neck welding" was decribed for ammunition that had sat for a long period of time so that the projectile and case neck start "sticking" to one another, I've felt that a very slight lubricant residue in the neck might well keep this from happening and keep the neck tension more uniform in loaded ammo.
The key thing with Imperial inside of case necks is to keep it to a very thin application; NOT gobs or ridges - a THIN film. This isn't too hard to do with a Q-tip and can yield very happy results on a target and/or reduce any "fix it" efforts needed on loaded ammo to try to "straighten it out" if the average TIR is too high.
When the inside of the necks are properly lubed there is just a noticable "smoothness" and a feeling of "pressure" as the neck is resized.
I lube cases no matter if carbide dies and/or expander balls are in use or not as I definately respect the major issues that can arise in the reloading process if the cases do not resize uniformly.
If I were worried about lube on or in cases and had a lot of them I would probably just wash them in clean, warm soapy water and probably use the ultrasonic cleaner to make sure things were agitated well.