This thread has been interesting.
I have a new rifle and was gifted about 50 once fired cases, I ran these through my full length resizing die a couple of weeks ago. So today I decided to check they all chamber in the new rifle, I had about a dozen that would let the bolt close.
I ran these through the die again a couple of times and that left me with 5 that won't chamber enough to close the bolt so have put them aside. I can see nor measure any difference between those that will and those that won't chamber.
Sometimes things just won't work.
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