Reloading 6.5x47L, case length 1.840", OAL 2.631" at the Ogive 2.096". All Full length resized, CCI primer, 38.0gr N140, SAAMI spec chamber. Forster Bench Rest Die's. RCBS Rockchucker Supreme press. I think that covers the techy bits.
Here's the rub:
New cases fired with no feeding problems or bolt closing problems at all.
Once fired I started to notice a few where the bolt was anything from slightly tight to tight,
Twice fired, most were very tight to impossible to close the bolt
Between each firing they were all FL resized.
I then tried some already FL resized cases, which again a lot were tight, I resized them again and then just tried chambering the cases to discount the bullet seating depth being a problem. No change they were still tight to very tight.
To discount problems with the press I put the Die in my old JR3 press and again resized and again no difference. If the case it tight to start, the resizing makes no difference.
All the unfired cases I have whatever length chamber effortlessly, even when loaded to above specs.
One observation that may or may not be of significance. I use an L E Wilson trimmer and it is superb at its job, very accurate. I have noticed however that a new unfired case sits much further into the shell holder than a once fired FL resized one.
I hope this makes some sense as I am not great on the keyboard, I think I have covered most things, so, reloading Gents and Ladies (if present) of many years experience, can I please have your thoughts on this problem, Chamber, Die or something else ??