A query for anyone with wisdom and experience...
...you see a lot written about declines in accuracy as a consequence of wear to barrels as they get used - especially with regard to the hotter calibres.
Does anyone have real experience of this happening? And not at a bench rest level, but at a level where it is noticeable during every day stalking by an every day stalker?
What sort of round count does it ocurr over? What magnitude is the effect? Can you be certain that any loss of accuracy is to do with the barrel, and not something else - like stock/action fit loosening or whatever?
I'm just curious as to what empirical evidence is out there.