I'd say on a One to Ten chambering "disclosure scale" as a Strong "7" of 10 as here in ad-ethics nowadays. These times and circumstance of Internet Auction Forum Websites; a few blurry as partial guns images; arising to folks bidding silly money! "P.T. Barnum Sucker a minute Syndrome!" I'd term the seller here "Technical" disclosure compliance, presumably an "8" re chambering.

Here's a rifle 'fallen from collector grace'. For an informed "collector" ample notice by combo of red flags and "due diligence". Equation of 'no harm, no foul'. As a shooter, looking a quite decent value at starting price for sure! Only the 'uninformed shooter-bidder, venturing into "collector realm" to be the likely looser. '

Strong Ethics, perhaps to preemptively resolve the hazard of misunderstanding made clear. For "Strong Ethics' expectations to be part of any transaction today... Rate along with 'other miracles'!
"Informed due diligence" as formula of the day!
Just my take!
Best!
John

Last edited by iskra; 03/31/23.