Trouble seating primers in swaged mil cases

supernova

supernova

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Hey guys
I'm having some trouble seating primers in some WCC 5.56 brass that I got off another member. The brass was supposed to be swaged but some primers take a good amount of force to seat while some go in crooked and end up getting destroyed. Most go in fine. What Im wondering is were they swaged improperly or do i still need to do some more prep work on them? Do any of the primer pocket tools remove the crimp or just adjust pocket depth?
Thanks
 
If they are swaged properly, then they should all go in with the same force. If some are not, it indicates that they were not fully swaged, or not at all. I would recommend a swager of your own.
 
In my opinion you still have some prep work that will help tremendously. I take the crimped primer cases and use 1/2 inch drill bit to slightly taper the crimp lip out. One turn on the drill bit and it smooth sailing from there on. I have a pill bottle with 40 crushed primers in it from the experiment before using the drill bit. my nickels worth
 
If the best of em go in with difficulty while the worst crumple up, I'd say you need to swage/ream them all. IMHO they haven't been done. That said, it could well be an honest mistake and the seller inadvertently shipped an unprocessed batch. If you have a lot of these to do, I'd go so far as to suggest you spring for a Lyman case prep center. Its a cheap rig for what you get and you'll whip through a 000 pockets in no time. The prep center does a whole lot of other operations too. Henry has em.
 
Thanks for all the tips guys. This is my first experience with both mil and swaged cases so its all new to me. Right after I posted this I went to the bench and used my chamfer tool on primer pockets of 5 pcs of brass then did my usual trim, chamfer, brush and lube. They all took the primers well with even force so I did up 10 more and had just 1 try to f-up. It went in however. Looks like I'll have to fit some more tools into my budget!
 
I always chamfer the primer pocket edge after swaging it. I use the RCBS chamfer and deburring tool to chamfer the primer pocket - it takes literally one second.

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Man I love this place! Thanks to the OP for asking the same question I came here with. Thanks to all of you who replied and gave me a ton of resources to fall on. Mainly my issue is some weird Hornady brass not liking my primers. More tools needed now.
 
I use the RCBS swager, and there is no need to chamfer them afterwards, as the swager rolls the edge slightly, if the swager is run fully into the pocket. Other swaging tools might be different.
 
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