Primers not fully seating

S

Steev

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I think I may have figured it out but wanted to see what if the collective knowledge base agrees.

I cannot get the primers to seat fully in my .223 brass and what amount does go in is not going in easy.

First the brass is cleaned, the primers are the same primers I used in the summer with the same collection of brass.

The last time I reloaded was in july and my press is in the basement, could the brass need to be warmed up to expand the hole to allow the primers in? I am going to try it out this weekend by bringing my bags of brass upstairs for the day and see if this helps. Just wondering if anyone else has experienced this problem.
 
Is it Win brass ? Seems to me Win brass always requires more effort to seat primers than any other brass. Hand primer tool makes it easier,can feel when they are properly seated.
 
Your first statement says it all. "I think I have it figured out."
The point is, only you can figure out why they were not seating properly.
We can't tell you, or even make an intellegent guess, because we know none of the details, and we are not there looking at it.
 
I've heard of the decapping rod in the die being set a little too long and the expander button pushing the web of the brass into the primer pocket, thus reducing the depth of the primer pocket. Never happened to me, I just read it somewhere. Good luck
Greg
 
Is it military brass? If it's got crimped primer pockets, you're in a world of hurt... you'll need to swage or ream the pocket, otherwise it won't take a new primer without totally destroying the cup.

Look for a little secondary ring around the inner lip of the pocket; I'll see if I can find an image.

milcrimp4.jpg


There, the two on the right are different examples of crimped pockets.

-M
 
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