223 neck tension

[Craig N]

I have some old yellow box Norinico 223 ammo. Some of it wants to push the bullet back into the case when it hits the feed ramp. Is there anything I can do to fix this ammo? Like run it through a seat/crimp die or if there is anything like a Lee Factory Crimp Die that would tighten up the tension?

[Powder Finger]

not after it's loaded. The sizer will make the bullet and case smaller, but the case springs back a little making the bullet looser yet.

[Craig N]

I was afraid it would be something like that. I still need to take em all outta the boxes and do a push test on all of them

[gunther]

You can run the loaded ammo through a lee crimp die or pull the bullets and resize the cases than reload with the pulled bullets. Just be cautious when doing stuff like this. Been doing stuff like this for years with no problems.