runningiron wrote on Nov 6
th, 2010 at 11:39pm:
Well, I think I know what's going on with my CS. I didn't have a dummy round to work with, so I got out my Forster GO gauge. I could not close the block, so then I tried to chamber my Aim Shot 25-05 arbor. It was a good quarter inch shy of seating. I think the damn thing is chambered too tighly. Is that a reasonable assumption?
Hello runningiron,
In your original post you stated you "fired one shot, and got a failure to extract, and that it required a cleaning rod to tap out the fired case".
Was that case intact when removed?
You then went on to say that unfired cases wouldn't extract either.
That means you managed to chamber a case.
You wouldn't be able to chamber an empty case if there was a partially separated case in the chamber
So, I don't think you have a neck separated case. It could be a tight neck on the chamber, or, it may be the chamber is 'ringed'.
Certainly I would suggest you do as 38_Cal suggests first, but there are other options to consider as well.
Once you have established there is no part separated case in the chamber, then do a full chamber cast and check it against the specifications for the round. It's also possible than someone has been fooling around and perhaps altering the chamber without altering the calibre markings.
Harry