While having a few target shots prior to a nights shoot,, I got one round that fed from the magazine without any issues,
but once in the chamber (also apparently without issues) I found that the bolt would not close fully.
I removed said cartridge, put it to one side and continued with other rounds out of the same packet.
When finished I tried the problem round again, but the bolt refuses to close fully.
I look closely at the round, and everything appeared to be normal except the edge of the case where it is crimped seemed a little rough
when running the tip of my finger over it.
Today I got the verniers and measured all aspects of it and compared it to another round that has no problems.
All measurements were the same.
Especially on the necks ie: .2455 "
I measured the one that seemed to be a bit rough in five differing positions around its circumference,, but still got the same .2455 "
They are factory Winchester .223 JSP
I should just dispose of this round, and move on,,,,,,,,,
But I'm wondering if any of you guys have any idea what would be wrong with it ?