Question:
Does anyone experience different extraction/insert tensions in getting the pin out or re-inserting the pin in the barrel/forestock on their Takedown rifles?

I notice at times my pin can be extremely difficult to remove & replace, sometimes really easy and slick.
Maybe it's the weather, but I believe my rifles are always kept at a moderate temperature and certainly not in a damp atmosphere. So I don't really understand what's causing the changes.

When I say difficult extraction, I'm talking of depressing the pin and absolutely unable to remove or re-insert the pin without the aid of a light tap using a plastic handle on a large screwdriver.
When it's easy, just depress the pin release and pull, comes out easy peasy.
It is the original pin and the barrel/stock are original all components holding matchiong serial numbers.

Thoughts and comments welcome.
Cheers.