Crimped primers?!?

mwjones

mwjones

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Slowly startign to gather some components to reload .308. Just a couple of questions for anyone with experience!

Just came into a whole bunch of CBC 7.62 brass, and they have the 3 little crimp punches on the primer. Now i read that some years were boxer and some berdan primed, any truth to this? as far as i can see, they're boxer primed.

Also, i have a bunch of IVI brass that has no visible crimp, but after hearign/reading that ALL MILITARY PRIMERS ARE CRIMPED (?) I have to ask.

Anyone have experience removing these crimps? There seems to be a lot of conflicting information. Soem guys chamfer by hand, some use a 45 degree drill bit in a drill, some use hundreds of dollars worth of decapping tools, pocket swaging dies, etc... What do YOU think is the best way and why?
 
I use an RCBC case prep center. it spins all your deburring tools etc. I place a crimp remover on one of the stations and it works really quick. You can also purchase a Swaging die for about $30 that will remove the crimp. Or you can go the expensive route and get a Dillon swage tool for about $150.
When the crimp is removed, your primer pockets might have a slight taper to them. this hasnt caused me any problems.
 
lol that might be easier for me in the logn run, huh? I've heard that military brass is more robust and good for more reloadigns, though :)
 
mwjones said:
Anyone have experience removing these crimps? There seems to be a lot of conflicting information. Soem guys chamfer by hand, some use a 45 degree drill bit in a drill, some use hundreds of dollars worth of decapping tools, pocket swaging dies, etc... What do YOU think is the best way and why?
Click to expand...

I use this and it works great:

http://www.sinclairintl.com/.aspx/pid=35209/Product/RCBS_Primer_Pocket_Swager_Combo

To see how easy it is to use and the results it gives see this:

http://www.youtube.com/watch?v=SdkA7vDeaes

Military Brass is harder to work, but generally it lasts longer than commercial brass.
 
mwjones said:
Slowly startign to gather some components to reload .308. Just a couple of questions for anyone with experience!

Just came into a whole bunch of CBC 7.62 brass, and they have the 3 little crimp punches on the primer. Now i read that some years were boxer and some berdan primed, any truth to this? as far as i can see, they're boxer primed.

..........
Click to expand...

If you are not 100% sure if they are boxer primed, I suggest you go back and read your reloading manual, because it should be plain as day to a reloader and not even worth mentioning.

If you do not have a manual, that should be the very first piece of reloading gear you buy.:)

BTW, I chuck a counter-sink bit into a cordless drill to remove the crimps.
 
All the CBC 7.62 brass I have seen is berdan. Look insde. 2 flash holes = Berdan. NG

I use a countersink tool in an electrc drill clamped in my vice for uncrmping primer pockets. i use a 3/8" countersink for small pockets and a half inch for large. Cost about $5.50 each at the hardware store.
 
yeah, the cbc stuff is definitely berdan primed :O All of the rest is boxer primed, though :) Thanks for the opinions, guys! It appears that the ivi and federal brass does not have crimped primers, so i should be good to go on those i guess.
 
Henry Nierychlo said:
I use one of these. I take the tip off the holder and chuck it into my drill press. I removes the crimps & mills the primer pocket square & to the right depth.
A little case lube on it every once in awhile keeps it milling smoothly.

http://www.lymanproducts.com/lyman/case-prep/primer-pocket-uniformer.php

I also have them for sale for $20.00
Regards, Henry
Click to expand...

I've got a bucket of military .223 brass with crimped primers to deal with. Will this tool do it quick?
 
Best way to remove crimped primers, IMHO is the Dillon swaging tool. Second best is the RCBS swaging die you thread into your reloading press. Cheapest best way is the use of the Lee chamfer tool. Depends on the volume of brass you will be working with.
 
IVI brass should have a crimp. I don't know how they do it but it doesnt always look like they do. I use the rcbs swager combo. You may find the crimp on IVI to be fairly mild but since it nato ammo it will have some degree of crimp.
 
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